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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4680 | right-hear | 1 | #ifndef _ARPA_NAMESER_H |
| 2 | #define _ARPA_NAMESER_H |
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| 3 | |||
| 4 | #include |
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| 5 | #include |
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| 6 | |||
| 7 | __BEGIN_DECLS |
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| 8 | |||
| 9 | #define NS_PACKETSZ 512 /* maximum packet size */ |
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| 10 | #define NS_MAXDNAME 1025 /* maximum domain name */ |
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| 11 | #define NS_MAXCDNAME 255 /* maximum compressed domain name */ |
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| 12 | #define NS_MAXLABEL 63 /* maximum length of domain label */ |
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| 13 | #define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */ |
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| 14 | #define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */ |
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| 15 | #define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */ |
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| 16 | #define NS_INT32SZ 4 /* #/bytes of data in a u_int32_t */ |
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| 17 | #define NS_INT16SZ 2 /* #/bytes of data in a u_int16_t */ |
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| 18 | #define NS_INT8SZ 1 /* #/bytes of data in a u_int8_t */ |
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| 19 | #define NS_INADDRSZ 4 /* IPv4 T_A */ |
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| 20 | #define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */ |
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| 21 | #define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */ |
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| 22 | #define NS_DEFAULTPORT 53 /* For both TCP and UDP. */ |
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| 23 | |||
| 24 | /* |
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| 25 | * Currently defined type values for resources and queries. |
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| 26 | */ |
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| 27 | typedef enum __ns_type { |
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| 28 | ns_t_invalid = 0, /* Cookie. */ |
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| 29 | ns_t_a = 1, /* Host address. */ |
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| 30 | ns_t_ns = 2, /* Authoritative server. */ |
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| 31 | ns_t_md = 3, /* Mail destination. */ |
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| 32 | ns_t_mf = 4, /* Mail forwarder. */ |
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| 33 | ns_t_cname = 5, /* Canonical name. */ |
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| 34 | ns_t_soa = 6, /* Start of authority zone. */ |
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| 35 | ns_t_mb = 7, /* Mailbox domain name. */ |
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| 36 | ns_t_mg = 8, /* Mail group member. */ |
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| 37 | ns_t_mr = 9, /* Mail rename name. */ |
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| 38 | ns_t_null = 10, /* Null resource record. */ |
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| 39 | ns_t_wks = 11, /* Well known service. */ |
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| 40 | ns_t_ptr = 12, /* Domain name pointer. */ |
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| 41 | ns_t_hinfo = 13, /* Host information. */ |
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| 42 | ns_t_minfo = 14, /* Mailbox information. */ |
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| 43 | ns_t_mx = 15, /* Mail routing information. */ |
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| 44 | ns_t_txt = 16, /* Text strings. */ |
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| 45 | ns_t_rp = 17, /* Responsible person. */ |
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| 46 | ns_t_afsdb = 18, /* AFS cell database. */ |
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| 47 | ns_t_x25 = 19, /* X_25 calling address. */ |
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| 48 | ns_t_isdn = 20, /* ISDN calling address. */ |
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| 49 | ns_t_rt = 21, /* Router. */ |
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| 50 | ns_t_nsap = 22, /* NSAP address. */ |
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| 51 | ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */ |
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| 52 | ns_t_sig = 24, /* Security signature. */ |
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| 53 | ns_t_key = 25, /* Security key. */ |
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| 54 | ns_t_px = 26, /* X.400 mail mapping. */ |
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| 55 | ns_t_gpos = 27, /* Geographical position (withdrawn). */ |
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| 56 | ns_t_aaaa = 28, /* Ip6 Address. */ |
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| 57 | ns_t_loc = 29, /* Location Information. */ |
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| 58 | ns_t_nxt = 30, /* Next domain (security). */ |
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| 59 | ns_t_eid = 31, /* Endpoint identifier. */ |
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| 60 | ns_t_nimloc = 32, /* Nimrod Locator. */ |
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| 61 | ns_t_srv = 33, /* Server Selection. */ |
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| 62 | ns_t_atma = 34, /* ATM Address */ |
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| 63 | ns_t_naptr = 35, /* Naming Authority PoinTeR */ |
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| 64 | ns_t_kx = 36, /* Key Exchange */ |
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| 65 | ns_t_cert = 37, /* Certification record */ |
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| 66 | ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */ |
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| 67 | ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */ |
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| 68 | ns_t_sink = 40, /* Kitchen sink (experimentatl) */ |
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| 69 | ns_t_opt = 41, /* EDNS0 option (meta-RR) */ |
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| 70 | ns_t_tsig = 250, /* Transaction signature. */ |
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| 71 | ns_t_ixfr = 251, /* Incremental zone transfer. */ |
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| 72 | ns_t_axfr = 252, /* Transfer zone of authority. */ |
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| 73 | ns_t_mailb = 253, /* Transfer mailbox records. */ |
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| 74 | ns_t_maila = 254, /* Transfer mail agent records. */ |
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| 75 | ns_t_any = 255, /* Wildcard match. */ |
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| 76 | ns_t_zxfr = 256, /* BIND-specific, nonstandard. */ |
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| 77 | ns_t_max = 65536 |
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| 78 | } ns_type; |
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| 79 | |||
| 80 | /* |
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| 81 | * Values for class field |
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| 82 | */ |
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| 83 | typedef enum __ns_class { |
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| 84 | ns_c_invalid = 0, /* Cookie. */ |
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| 85 | ns_c_in = 1, /* Internet. */ |
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| 86 | ns_c_2 = 2, /* unallocated/unsupported. */ |
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| 87 | ns_c_chaos = 3, /* MIT Chaos-net. */ |
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| 88 | ns_c_hs = 4, /* MIT Hesiod. */ |
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| 89 | /* Query class values which do not appear in resource records */ |
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| 90 | ns_c_none = 254, /* for prereq. sections in update requests */ |
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| 91 | ns_c_any = 255, /* Wildcard match. */ |
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| 92 | ns_c_max = 65536 |
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| 93 | } ns_class; |
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| 94 | |||
| 95 | /* |
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| 96 | * Currently defined opcodes. |
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| 97 | */ |
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| 98 | typedef enum __ns_opcode { |
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| 99 | ns_o_query = 0, /* Standard query. */ |
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| 100 | ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */ |
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| 101 | ns_o_status = 2, /* Name server status query (unsupported). */ |
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| 102 | /* Opcode 3 is undefined/reserved. */ |
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| 103 | ns_o_notify = 4, /* Zone change notification. */ |
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| 104 | ns_o_update = 5, /* Zone update message. */ |
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| 105 | ns_o_max = 6 |
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| 106 | } ns_opcode; |
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| 107 | |||
| 108 | /* |
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| 109 | * Currently defined response codes. |
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| 110 | */ |
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| 111 | typedef enum __ns_rcode { |
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| 112 | ns_r_noerror = 0, /* No error occurred. */ |
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| 113 | ns_r_formerr = 1, /* Format error. */ |
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| 114 | ns_r_servfail = 2, /* Server failure. */ |
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| 115 | ns_r_nxdomain = 3, /* Name error. */ |
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| 116 | ns_r_notimpl = 4, /* Unimplemented. */ |
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| 117 | ns_r_refused = 5, /* Operation refused. */ |
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| 118 | /* these are for BIND_UPDATE */ |
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| 119 | ns_r_yxdomain = 6, /* Name exists */ |
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| 120 | ns_r_yxrrset = 7, /* RRset exists */ |
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| 121 | ns_r_nxrrset = 8, /* RRset does not exist */ |
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| 122 | ns_r_notauth = 9, /* Not authoritative for zone */ |
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| 123 | ns_r_notzone = 10, /* Zone of record different from zone section */ |
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| 124 | ns_r_max = 11, |
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| 125 | /* The following are TSIG extended errors */ |
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| 126 | ns_r_badsig = 16, |
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| 127 | ns_r_badkey = 17, |
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| 128 | ns_r_badtime = 18 |
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| 129 | } ns_rcode; |
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| 130 | |||
| 131 | typedef struct { |
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| 132 | unsigned id :16; /* query identification number */ |
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| 133 | #if BYTE_ORDER == BIG_ENDIAN |
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| 134 | /* fields in third byte */ |
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| 135 | unsigned qr: 1; /* response flag */ |
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| 136 | unsigned opcode: 4; /* purpose of message */ |
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| 137 | unsigned aa: 1; /* authoritive answer */ |
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| 138 | unsigned tc: 1; /* truncated message */ |
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| 139 | unsigned rd: 1; /* recursion desired */ |
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| 140 | /* fields in fourth byte */ |
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| 141 | unsigned ra: 1; /* recursion available */ |
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| 142 | unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ |
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| 143 | unsigned ad: 1; /* authentic data from named */ |
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| 144 | unsigned cd: 1; /* checking disabled by resolver */ |
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| 145 | unsigned rcode :4; /* response code */ |
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| 146 | #endif |
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| 147 | #if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN |
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| 148 | /* fields in third byte */ |
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| 149 | unsigned rd :1; /* recursion desired */ |
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| 150 | unsigned tc :1; /* truncated message */ |
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| 151 | unsigned aa :1; /* authoritive answer */ |
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| 152 | unsigned opcode :4; /* purpose of message */ |
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| 153 | unsigned qr :1; /* response flag */ |
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| 154 | /* fields in fourth byte */ |
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| 155 | unsigned rcode :4; /* response code */ |
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| 156 | unsigned cd: 1; /* checking disabled by resolver */ |
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| 157 | unsigned ad: 1; /* authentic data from named */ |
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| 158 | unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ |
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| 159 | unsigned ra :1; /* recursion available */ |
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| 160 | #endif |
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| 161 | /* remaining bytes */ |
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| 162 | unsigned qdcount :16; /* number of question entries */ |
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| 163 | unsigned ancount :16; /* number of answer entries */ |
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| 164 | unsigned nscount :16; /* number of authority entries */ |
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| 165 | unsigned arcount :16; /* number of resource entries */ |
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| 166 | } HEADER; |
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| 167 | |||
| 168 | #define PACKETSZ NS_PACKETSZ |
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| 169 | #define MAXDNAME NS_MAXDNAME |
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| 170 | #define MAXCDNAME NS_MAXCDNAME |
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| 171 | #define MAXLABEL NS_MAXLABEL |
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| 172 | #define HFIXEDSZ NS_HFIXEDSZ |
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| 173 | #define QFIXEDSZ NS_QFIXEDSZ |
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| 174 | #define RRFIXEDSZ NS_RRFIXEDSZ |
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| 175 | #define INT32SZ NS_INT32SZ |
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| 176 | #define INT16SZ NS_INT16SZ |
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| 177 | #define INADDRSZ NS_INADDRSZ |
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| 178 | #define IN6ADDRSZ NS_IN6ADDRSZ |
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| 179 | #define INDIR_MASK NS_CMPRSFLGS |
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| 180 | #define NAMESERVER_PORT NS_DEFAULTPORT |
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| 181 | |||
| 182 | #define S_ZONE ns_s_zn |
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| 183 | #define S_PREREQ ns_s_pr |
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| 184 | #define S_UPDATE ns_s_ud |
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| 185 | #define S_ADDT ns_s_ar |
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| 186 | |||
| 187 | #define QUERY ns_o_query |
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| 188 | #define IQUERY ns_o_iquery |
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| 189 | #define STATUS ns_o_status |
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| 190 | #define NS_NOTIFY_OP ns_o_notify |
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| 191 | #define NS_UPDATE_OP ns_o_update |
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| 192 | |||
| 193 | #define NOERROR ns_r_noerror |
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| 194 | #define FORMERR ns_r_formerr |
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| 195 | #define SERVFAIL ns_r_servfail |
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| 196 | #define NXDOMAIN ns_r_nxdomain |
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| 197 | #define NOTIMP ns_r_notimpl |
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| 198 | #define REFUSED ns_r_refused |
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| 199 | #define YXDOMAIN ns_r_yxdomain |
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| 200 | #define YXRRSET ns_r_yxrrset |
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| 201 | #define NXRRSET ns_r_nxrrset |
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| 202 | #define NOTAUTH ns_r_notauth |
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| 203 | #define NOTZONE ns_r_notzone |
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| 204 | |||
| 205 | #define DELETE ns_uop_delete |
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| 206 | #define ADD ns_uop_add |
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| 207 | |||
| 208 | #define T_A ns_t_a |
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| 209 | #define T_NS ns_t_ns |
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| 210 | #define T_MD ns_t_md |
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| 211 | #define T_MF ns_t_mf |
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| 212 | #define T_CNAME ns_t_cname |
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| 213 | #define T_SOA ns_t_soa |
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| 214 | #define T_MB ns_t_mb |
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| 215 | #define T_MG ns_t_mg |
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| 216 | #define T_MR ns_t_mr |
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| 217 | #define T_NULL ns_t_null |
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| 218 | #define T_WKS ns_t_wks |
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| 219 | #define T_PTR ns_t_ptr |
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| 220 | #define T_HINFO ns_t_hinfo |
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| 221 | #define T_MINFO ns_t_minfo |
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| 222 | #define T_MX ns_t_mx |
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| 223 | #define T_TXT ns_t_txt |
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| 224 | #define T_RP ns_t_rp |
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| 225 | #define T_AFSDB ns_t_afsdb |
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| 226 | #define T_X25 ns_t_x25 |
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| 227 | #define T_ISDN ns_t_isdn |
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| 228 | #define T_RT ns_t_rt |
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| 229 | #define T_NSAP ns_t_nsap |
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| 230 | #define T_NSAP_PTR ns_t_nsap_ptr |
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| 231 | #define T_SIG ns_t_sig |
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| 232 | #define T_KEY ns_t_key |
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| 233 | #define T_PX ns_t_px |
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| 234 | #define T_GPOS ns_t_gpos |
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| 235 | #define T_AAAA ns_t_aaaa |
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| 236 | #define T_LOC ns_t_loc |
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| 237 | #define T_NXT ns_t_nxt |
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| 238 | #define T_EID ns_t_eid |
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| 239 | #define T_NIMLOC ns_t_nimloc |
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| 240 | #define T_SRV ns_t_srv |
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| 241 | #define T_ATMA ns_t_atma |
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| 242 | #define T_NAPTR ns_t_naptr |
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| 243 | #define T_TSIG ns_t_tsig |
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| 244 | #define T_IXFR ns_t_ixfr |
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| 245 | #define T_AXFR ns_t_axfr |
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| 246 | #define T_MAILB ns_t_mailb |
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| 247 | #define T_MAILA ns_t_maila |
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| 248 | #define T_ANY ns_t_any |
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| 249 | |||
| 250 | #define C_IN ns_c_in |
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| 251 | #define C_CHAOS ns_c_chaos |
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| 252 | #define C_HS ns_c_hs |
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| 253 | #define C_NONE ns_c_none |
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| 254 | #define C_ANY ns_c_any |
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| 255 | |||
| 256 | __END_DECLS |
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| 257 | |||
| 258 | #endif |