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| #ifndef _ARPA_NAMESER_H |
| #define _ARPA_NAMESER_H |
| |
| #include <sys/cdefs.h> |
| #include <endian.h> |
| |
| __BEGIN_DECLS |
| |
| #define NS_PACKETSZ 512 /* maximum packet size */ |
| #define NS_MAXDNAME 1025 /* maximum domain name */ |
| #define NS_MAXCDNAME 255 /* maximum compressed domain name */ |
| #define NS_MAXLABEL 63 /* maximum length of domain label */ |
| #define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */ |
| #define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */ |
| #define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */ |
| #define NS_INT32SZ 4 /* #/bytes of data in a u_int32_t */ |
| #define NS_INT16SZ 2 /* #/bytes of data in a u_int16_t */ |
| #define NS_INT8SZ 1 /* #/bytes of data in a u_int8_t */ |
| #define NS_INADDRSZ 4 /* IPv4 T_A */ |
| #define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */ |
| #define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */ |
| #define NS_DEFAULTPORT 53 /* For both TCP and UDP. */ |
| |
| /* |
| * Currently defined type values for resources and queries. |
| */ |
| typedef enum __ns_type { |
| ns_t_invalid = 0, /* Cookie. */ |
| ns_t_a = 1, /* Host address. */ |
| ns_t_ns = 2, /* Authoritative server. */ |
| ns_t_md = 3, /* Mail destination. */ |
| ns_t_mf = 4, /* Mail forwarder. */ |
| ns_t_cname = 5, /* Canonical name. */ |
| ns_t_soa = 6, /* Start of authority zone. */ |
| ns_t_mb = 7, /* Mailbox domain name. */ |
| ns_t_mg = 8, /* Mail group member. */ |
| ns_t_mr = 9, /* Mail rename name. */ |
| ns_t_null = 10, /* Null resource record. */ |
| ns_t_wks = 11, /* Well known service. */ |
| ns_t_ptr = 12, /* Domain name pointer. */ |
| ns_t_hinfo = 13, /* Host information. */ |
| ns_t_minfo = 14, /* Mailbox information. */ |
| ns_t_mx = 15, /* Mail routing information. */ |
| ns_t_txt = 16, /* Text strings. */ |
| ns_t_rp = 17, /* Responsible person. */ |
| ns_t_afsdb = 18, /* AFS cell database. */ |
| ns_t_x25 = 19, /* X_25 calling address. */ |
| ns_t_isdn = 20, /* ISDN calling address. */ |
| ns_t_rt = 21, /* Router. */ |
| ns_t_nsap = 22, /* NSAP address. */ |
| ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */ |
| ns_t_sig = 24, /* Security signature. */ |
| ns_t_key = 25, /* Security key. */ |
| ns_t_px = 26, /* X.400 mail mapping. */ |
| ns_t_gpos = 27, /* Geographical position (withdrawn). */ |
| ns_t_aaaa = 28, /* Ip6 Address. */ |
| ns_t_loc = 29, /* Location Information. */ |
| ns_t_nxt = 30, /* Next domain (security). */ |
| ns_t_eid = 31, /* Endpoint identifier. */ |
| ns_t_nimloc = 32, /* Nimrod Locator. */ |
| ns_t_srv = 33, /* Server Selection. */ |
| ns_t_atma = 34, /* ATM Address */ |
| ns_t_naptr = 35, /* Naming Authority PoinTeR */ |
| ns_t_kx = 36, /* Key Exchange */ |
| ns_t_cert = 37, /* Certification record */ |
| ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */ |
| ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */ |
| ns_t_sink = 40, /* Kitchen sink (experimentatl) */ |
| ns_t_opt = 41, /* EDNS0 option (meta-RR) */ |
| ns_t_tsig = 250, /* Transaction signature. */ |
| ns_t_ixfr = 251, /* Incremental zone transfer. */ |
| ns_t_axfr = 252, /* Transfer zone of authority. */ |
| ns_t_mailb = 253, /* Transfer mailbox records. */ |
| ns_t_maila = 254, /* Transfer mail agent records. */ |
| ns_t_any = 255, /* Wildcard match. */ |
| ns_t_zxfr = 256, /* BIND-specific, nonstandard. */ |
| ns_t_max = 65536 |
| } ns_type; |
| |
| /* |
| * Values for class field |
| */ |
| typedef enum __ns_class { |
| ns_c_invalid = 0, /* Cookie. */ |
| ns_c_in = 1, /* Internet. */ |
| ns_c_2 = 2, /* unallocated/unsupported. */ |
| ns_c_chaos = 3, /* MIT Chaos-net. */ |
| ns_c_hs = 4, /* MIT Hesiod. */ |
| /* Query class values which do not appear in resource records */ |
| ns_c_none = 254, /* for prereq. sections in update requests */ |
| ns_c_any = 255, /* Wildcard match. */ |
| ns_c_max = 65536 |
| } ns_class; |
| |
| /* |
| * Currently defined opcodes. |
| */ |
| typedef enum __ns_opcode { |
| ns_o_query = 0, /* Standard query. */ |
| ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */ |
| ns_o_status = 2, /* Name server status query (unsupported). */ |
| /* Opcode 3 is undefined/reserved. */ |
| ns_o_notify = 4, /* Zone change notification. */ |
| ns_o_update = 5, /* Zone update message. */ |
| ns_o_max = 6 |
| } ns_opcode; |
| |
| /* |
| * Currently defined response codes. |
| */ |
| typedef enum __ns_rcode { |
| ns_r_noerror = 0, /* No error occurred. */ |
| ns_r_formerr = 1, /* Format error. */ |
| ns_r_servfail = 2, /* Server failure. */ |
| ns_r_nxdomain = 3, /* Name error. */ |
| ns_r_notimpl = 4, /* Unimplemented. */ |
| ns_r_refused = 5, /* Operation refused. */ |
| /* these are for BIND_UPDATE */ |
| ns_r_yxdomain = 6, /* Name exists */ |
| ns_r_yxrrset = 7, /* RRset exists */ |
| ns_r_nxrrset = 8, /* RRset does not exist */ |
| ns_r_notauth = 9, /* Not authoritative for zone */ |
| ns_r_notzone = 10, /* Zone of record different from zone section */ |
| ns_r_max = 11, |
| /* The following are TSIG extended errors */ |
| ns_r_badsig = 16, |
| ns_r_badkey = 17, |
| ns_r_badtime = 18 |
| } ns_rcode; |
| |
| typedef struct { |
| unsigned id :16; /* query identification number */ |
| #if BYTE_ORDER == BIG_ENDIAN |
| /* fields in third byte */ |
| unsigned qr: 1; /* response flag */ |
| unsigned opcode: 4; /* purpose of message */ |
| unsigned aa: 1; /* authoritive answer */ |
| unsigned tc: 1; /* truncated message */ |
| unsigned rd: 1; /* recursion desired */ |
| /* fields in fourth byte */ |
| unsigned ra: 1; /* recursion available */ |
| unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ |
| unsigned ad: 1; /* authentic data from named */ |
| unsigned cd: 1; /* checking disabled by resolver */ |
| unsigned rcode :4; /* response code */ |
| #endif |
| #if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN |
| /* fields in third byte */ |
| unsigned rd :1; /* recursion desired */ |
| unsigned tc :1; /* truncated message */ |
| unsigned aa :1; /* authoritive answer */ |
| unsigned opcode :4; /* purpose of message */ |
| unsigned qr :1; /* response flag */ |
| /* fields in fourth byte */ |
| unsigned rcode :4; /* response code */ |
| unsigned cd: 1; /* checking disabled by resolver */ |
| unsigned ad: 1; /* authentic data from named */ |
| unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ |
| unsigned ra :1; /* recursion available */ |
| #endif |
| /* remaining bytes */ |
| unsigned qdcount :16; /* number of question entries */ |
| unsigned ancount :16; /* number of answer entries */ |
| unsigned nscount :16; /* number of authority entries */ |
| unsigned arcount :16; /* number of resource entries */ |
| } HEADER; |
| |
| #define PACKETSZ NS_PACKETSZ |
| #define MAXDNAME NS_MAXDNAME |
| #define MAXCDNAME NS_MAXCDNAME |
| #define MAXLABEL NS_MAXLABEL |
| #define HFIXEDSZ NS_HFIXEDSZ |
| #define QFIXEDSZ NS_QFIXEDSZ |
| #define RRFIXEDSZ NS_RRFIXEDSZ |
| #define INT32SZ NS_INT32SZ |
| #define INT16SZ NS_INT16SZ |
| #define INADDRSZ NS_INADDRSZ |
| #define IN6ADDRSZ NS_IN6ADDRSZ |
| #define INDIR_MASK NS_CMPRSFLGS |
| #define NAMESERVER_PORT NS_DEFAULTPORT |
| |
| #define S_ZONE ns_s_zn |
| #define S_PREREQ ns_s_pr |
| #define S_UPDATE ns_s_ud |
| #define S_ADDT ns_s_ar |
| |
| #define QUERY ns_o_query |
| #define IQUERY ns_o_iquery |
| #define STATUS ns_o_status |
| #define NS_NOTIFY_OP ns_o_notify |
| #define NS_UPDATE_OP ns_o_update |
| |
| #define NOERROR ns_r_noerror |
| #define FORMERR ns_r_formerr |
| #define SERVFAIL ns_r_servfail |
| #define NXDOMAIN ns_r_nxdomain |
| #define NOTIMP ns_r_notimpl |
| #define REFUSED ns_r_refused |
| #define YXDOMAIN ns_r_yxdomain |
| #define YXRRSET ns_r_yxrrset |
| #define NXRRSET ns_r_nxrrset |
| #define NOTAUTH ns_r_notauth |
| #define NOTZONE ns_r_notzone |
| |
| #define DELETE ns_uop_delete |
| #define ADD ns_uop_add |
| |
| #define T_A ns_t_a |
| #define T_NS ns_t_ns |
| #define T_MD ns_t_md |
| #define T_MF ns_t_mf |
| #define T_CNAME ns_t_cname |
| #define T_SOA ns_t_soa |
| #define T_MB ns_t_mb |
| #define T_MG ns_t_mg |
| #define T_MR ns_t_mr |
| #define T_NULL ns_t_null |
| #define T_WKS ns_t_wks |
| #define T_PTR ns_t_ptr |
| #define T_HINFO ns_t_hinfo |
| #define T_MINFO ns_t_minfo |
| #define T_MX ns_t_mx |
| #define T_TXT ns_t_txt |
| #define T_RP ns_t_rp |
| #define T_AFSDB ns_t_afsdb |
| #define T_X25 ns_t_x25 |
| #define T_ISDN ns_t_isdn |
| #define T_RT ns_t_rt |
| #define T_NSAP ns_t_nsap |
| #define T_NSAP_PTR ns_t_nsap_ptr |
| #define T_SIG ns_t_sig |
| #define T_KEY ns_t_key |
| #define T_PX ns_t_px |
| #define T_GPOS ns_t_gpos |
| #define T_AAAA ns_t_aaaa |
| #define T_LOC ns_t_loc |
| #define T_NXT ns_t_nxt |
| #define T_EID ns_t_eid |
| #define T_NIMLOC ns_t_nimloc |
| #define T_SRV ns_t_srv |
| #define T_ATMA ns_t_atma |
| #define T_NAPTR ns_t_naptr |
| #define T_TSIG ns_t_tsig |
| #define T_IXFR ns_t_ixfr |
| #define T_AXFR ns_t_axfr |
| #define T_MAILB ns_t_mailb |
| #define T_MAILA ns_t_maila |
| #define T_ANY ns_t_any |
| |
| #define C_IN ns_c_in |
| #define C_CHAOS ns_c_chaos |
| #define C_HS ns_c_hs |
| #define C_NONE ns_c_none |
| #define C_ANY ns_c_any |
| |
| __END_DECLS |
| |
| #endif |