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