/**
* dns.h
*
* modelled slightly after dns.h of NSD
* Everything we know about the DNS
* (c) NLnet Labs, 2004
*
* See the file LICENSE for the license
*
*/
#ifndef _DNSTYPES_H_
#define _DNSTYPES_H_
#define DNS_PORT 53
/* RFC1035 */
#define CLASS_IN 1 /* Class IN */
#define CLASS_CH 3 /* Class CHAOS */
#define CLASS_HS 4 /* Class HS */
#define CLASS_ANY 255 /* Class IN */
#define TYPE_A 1 /* a host address */
#define TYPE_NS 2 /* an authoritative name server */
#define TYPE_MD 3 /* a mail destination (Obsolete - use MX) */
#define TYPE_MF 4 /* a mail forwarder (Obsolete - use MX) */
#define TYPE_CNAME 5 /* the canonical name for an alias */
#define TYPE_SOA 6 /* marks the start of a zone of authority */
#define TYPE_MB 7 /* a mailbox domain name (EXPERIMENTAL) */
#define TYPE_MG 8 /* a mail group member (EXPERIMENTAL) */
#define TYPE_MR 9 /* a mail rename domain name (EXPERIMENTAL) */
#define TYPE_NULL 10 /* a null RR (EXPERIMENTAL) */
#define TYPE_WKS 11 /* a well known service description */
#define TYPE_PTR 12 /* a domain name pointer */
#define TYPE_HINFO 13 /* host information */
#define TYPE_MINFO 14 /* mailbox or mail list information */
#define TYPE_MX 15 /* mail exchange */
#define TYPE_TXT 16 /* text strings */
#define TYPE_RP 17 /* RFC1183 */
#define TYPE_AFSDB 18 /* RFC1183 */
#define TYPE_X25 19 /* RFC1183 */
#define TYPE_ISDN 20 /* RFC1183 */
#define TYPE_RT 21 /* RFC1183 */
#define TYPE_NSAP 22 /* RFC1647 */
/* some newer types */
#define TYPE_SIG 24 /* DNSSEC SIG (rfc2535) */
#define TYPE_KEY 25 /* DNSSEC KEY (rfc2535) */
#define TYPE_PX 26 /* RFC 2163 */
#define TYPE_AAAA 28 /* ipv6 address */
#define TYPE_LOC 29 /* LOC record RFC1876 */
#define TYPE_NXT 30 /* DNSSEC NXT (rfc2535) */
#define TYPE_SRV 33 /* SRV record RFC2782 */
#define TYPE_NAPTR 35 /* NAPTR record RFC2915 */
#define TYPE_KX 36 /* RFC2230 */
#define TYPE_CERT 37 /* CERT record RFC 2538 */
#define TYPE_DNAME 39 /* RFC2672 */
#define TYPE_OPT 41 /* Pseudo OPT record... */
#define TYPE_APL 42 /* APL, RFC3123 */
#define TYPE_DS 43 /* draft-ietf-dnsext-delegation */
#define TYPE_SSHFP 44 /* SSH Key Fingerprint */
#define TYPE_RRSIG 46 /* dnssecbis */
#define TYPE_NSEC 47 /* dnssecbis */
#define TYPE_DNSKEY 48 /* dnssecbis */
#define TYPE_TSIG 250 /* rfc2845 */
#define TYPE_IXFR 251
#define TYPE_AXFR 252
#define TYPE_MAILB 253 /* A request for mailbox-related records (MB, MG or MR) */
#define TYPE_MAILA 254 /* A request for mail agent RRs (Obsolete - see MX) */
#define TYPE_ANY 255 /* any type (wildcard) */
/* rcodes */
#define RCODE_NOERROR 1 /* +1 from what the real one is */
#define RCODE_FORMERR 2 /* ---------------------------- */
#define RCODE_SERVFAIL 3
#define RCODE_NAMEERR 4
#define RCODE_NOTIMPL 5
#define RCODE_REFUSED 6
#define RCODE_NOTAUTH 10 /* See rfc2845 */
#define RCODE_BADSIG 16
#define RCODE_BADKEY 17
#define RCODE_BADTIME 18
#define MAX_LABELLEN 63
#define MAX_DOMAINLEN 255
#define MAX_RDLENGTH 65535
/* Maximum size of a single RR. */
/*
#define MAX_RR_SIZE \
(MAXDOMAINLEN + sizeof(uint32_t) + 4*sizeof(uint16_t) + MAX_RDLENGTH)
*/
/**
* Generic lookup table.
* This is used to map internal symbols to human-readable names
* (for instance the value 1 to RCODE_NOERROR)
*/
struct gtab {
/**
* symbol
*/
uint16_t sym;
/**
* name
*/
const char *name;
};
#define Z_CLASSES { \
{CLASS_IN, "IN"}, \
{CLASS_CH, "CH"}, \
{CLASS_HS, "HS"}, \
{0, NULL} \
}
#define Z_TYPES { \
{TYPE_A, "A"}, \
{TYPE_NS, "NS"}, \
{TYPE_MD, "MD"}, \
{TYPE_MF, "MF"}, \
{TYPE_CNAME, "CNAME"}, \
{TYPE_SOA, "SOA"}, \
{TYPE_MB, "MB"}, \
{TYPE_MG, "MG"}, \
{TYPE_MR, "MR"}, \
{TYPE_NULL, "NULL"}, \
{TYPE_WKS, "WKS"}, \
{TYPE_PTR, "PTR"}, \
{TYPE_HINFO, "HINFO"}, \
{TYPE_MINFO, "MINFO"}, \
{TYPE_MX, "MX"}, \
{TYPE_TXT, "TXT"}, \
{TYPE_SIG, "SIG"}, \
{TYPE_KEY, "KEY"}, \
{TYPE_NXT, "NXT"}, \
{TYPE_PX, "PX"}, \
{TYPE_AAAA, "AAAA"}, \
{TYPE_SRV, "SRV"}, \
{TYPE_NAPTR, "NAPTR"}, \
{TYPE_KX, "KX"}, \
{TYPE_CERT, "CERT"}, \
{TYPE_DNAME, "DNAME"}, \
{TYPE_LOC, "LOC"}, \
{TYPE_AFSDB, "AFSDB"}, \
{TYPE_X25, "X25"}, \
{TYPE_ISDN, "ISDN"}, \
{TYPE_RT, "RT"}, \
{TYPE_NSAP, "NSAP"}, \
{TYPE_RP, "RP"}, \
{TYPE_APL, "APL"}, \
{TYPE_DS, "DS"}, \
{TYPE_SSHFP, "SSHFP"}, \
{TYPE_RRSIG, "RRSIG"}, \
{TYPE_NSEC, "NSEC"}, \
{TYPE_DNSKEY, "DNSKEY"},\
{TYPE_TSIG, "TSIG"}, \
{TYPE_ANY, "ANY"}, \
{TYPE_AXFR, "AXFR"}, \
{0, NULL} \
}
#define R_CODES { \
{RCODE_NOERROR, "NOERROR"}, \
{RCODE_FORMERR, "FORMERR"}, \
{RCODE_SERVFAIL, "SERVFAIL"}, \
{RCODE_NAMEERR, "NAMEERR"}, \
{RCODE_NOTIMPL, "NOTIMPL"}, \
{RCODE_REFUSED, "REFUSED"}, \
{RCODE_NOTAUTH, "NOTAUTH"}, \
{RCODE_BADSIG, "BADSIG"}, \
{RCODE_BADKEY, "BADKEY"}, \
{RCODE_BADTIME, "BADTIME"}, \
{0, NULL} \
}
/*#define RDATA_TYPE_STRING 1*/
#define RDATA_TYPE_DNAME 1
#define RDATA_TYPE_INT32 2
#define RDATA_TYPE_INT16 3
#define RDATA_TYPE_INT8 4
#define RDATA_TYPE_A 5
#define RDATA_TYPE_AAAA 6
#define RDATA_TYPE_ANY 7
#define RDATA_TYPE_STR 8
#define RDATA_TYPE_BASE64 9
#define RDATA_TYPE_HEX 10
#define RDATA_TYPE_INT48 11
/* special rdata formats */
#define RDATA_TYPE_NSEC 12
/* extra subdivision for printing */
#define RDATA_TYPE_TYPE 13
#define RDATA_TYPE_CLASS 14
#define RDATA_TYPE_ALGO 15
#define RDATA_TYPE_CERTTYPE 16
#define RDATA_TYPE_WKS 17
#define RDATA_TYPE_NSAP 18
#define RDATA_TYPE_LOC 19
#define RDATA_TYPE_APL 20
/* contains info on rdata types */
#define RR_RDATA_TYPES { \
{0, 0}, /* no type zero */\
{RDATA_TYPE_A}, /* A 1 */\
{RDATA_TYPE_DNAME}, /* NS 2 */\
{RDATA_TYPE_DNAME}, /* MD 3 */\
{RDATA_TYPE_DNAME}, /* MF 4 */\
{RDATA_TYPE_DNAME}, /* CNAME 5 */\
{RDATA_TYPE_DNAME, /* SOA 6 */\
RDATA_TYPE_DNAME, \
RDATA_TYPE_INT32, \
RDATA_TYPE_INT32, \
RDATA_TYPE_INT32, \
RDATA_TYPE_INT32, \
RDATA_TYPE_INT32}, \
{RDATA_TYPE_DNAME}, /* MB 7 */\
{RDATA_TYPE_DNAME}, /* MG 8 */\
{RDATA_TYPE_DNAME}, /* MR 9 */\
{RDATA_TYPE_HEX}, /* NULL (TODO)10 */\
{RDATA_TYPE_A, /* WKS 11 */\
RDATA_TYPE_WKS}, \
{RDATA_TYPE_DNAME}, /* PTR 12 */\
{RDATA_TYPE_STR, /* HINFO 13 */\
RDATA_TYPE_STR}, \
{RDATA_TYPE_DNAME, /* MINFO 14 */\
RDATA_TYPE_DNAME}, \
{RDATA_TYPE_INT16, /* MX 15 */\
RDATA_TYPE_DNAME}, \
{RDATA_TYPE_STR}, /* TXT (TODO) 16 */\
{RDATA_TYPE_DNAME, /* RP 17 */\
RDATA_TYPE_DNAME}, \
{RDATA_TYPE_INT16, /* AFSDB 18 */\
RDATA_TYPE_DNAME}, \
{RDATA_TYPE_STR}, /* X25 19 */\
{RDATA_TYPE_STR, \
RDATA_TYPE_STR}, /* ISDN 20 */\
{RDATA_TYPE_INT16, \
RDATA_TYPE_DNAME}, /* RT 21 */\
{RDATA_TYPE_NSAP}, /* NSAP 21 */\
{}, /* skip 23 */\
{RDATA_TYPE_TYPE, /* SIG 24 */\
RDATA_TYPE_ALGO, \
RDATA_TYPE_INT8, \
RDATA_TYPE_INT32, \
RDATA_TYPE_INT32, /*TODO <- make _DATE */\
RDATA_TYPE_INT32, \
RDATA_TYPE_INT16, \
RDATA_TYPE_DNAME, \
RDATA_TYPE_BASE64}, \
{RDATA_TYPE_INT16, /* KEY 25 */\
RDATA_TYPE_INT8, \
RDATA_TYPE_INT8, \
RDATA_TYPE_BASE64}, \
{RDATA_TYPE_INT16, /* PX 26 */\
RDATA_TYPE_DNAME, \
RDATA_TYPE_DNAME}, \
{}, /* skip 27 */\
{RDATA_TYPE_AAAA}, /* AAAA 28 */\
{RDATA_TYPE_LOC}, /* LOC 29 */\
{RDATA_TYPE_DNAME, /* NXT 30 */\
RDATA_TYPE_HEX}, \
{}, {}, /* skip 31-32 */\
{RDATA_TYPE_INT16, /* SRV 33 */\
RDATA_TYPE_INT16, \
RDATA_TYPE_INT16, \
RDATA_TYPE_DNAME}, \
{}, /* skip 34 */\
{RDATA_TYPE_INT16, /* NAPTR 35 */\
RDATA_TYPE_INT16, \
RDATA_TYPE_STR, \
RDATA_TYPE_STR, \
RDATA_TYPE_STR, \
RDATA_TYPE_DNAME}, \
{RDATA_TYPE_INT16, /* KX 36 */\
RDATA_TYPE_DNAME}, \
{RDATA_TYPE_CERTTYPE, /* CERT 37 */\
RDATA_TYPE_INT16, \
RDATA_TYPE_INT8, \
RDATA_TYPE_BASE64}, \
{}, /* skip 38 */\
{RDATA_TYPE_DNAME}, /* DNAME 39 */\
{}, /* skip 40 */\
{}, /* OPT 41 */\
{RDATA_TYPE_APL}, /* APL 42 */\
{RDATA_TYPE_INT16, /* DS 43 */\
RDATA_TYPE_INT8, \
RDATA_TYPE_INT8, \
RDATA_TYPE_HEX}, \
{}, /* SSHFP TODO 44 */\
{}, /* skip 45 */\
{RDATA_TYPE_TYPE, /* RRSIG 46 */\
RDATA_TYPE_ALGO, \
RDATA_TYPE_INT8, \
RDATA_TYPE_INT32, \
RDATA_TYPE_INT32, \
RDATA_TYPE_INT32, \
RDATA_TYPE_INT16, \
RDATA_TYPE_DNAME, \
RDATA_TYPE_BASE64}, \
{RDATA_TYPE_DNAME, /* NSEC 47 */\
RDATA_TYPE_NSEC}, \
{RDATA_TYPE_INT16, /* DNSKEY 48 */\
RDATA_TYPE_INT8, \
RDATA_TYPE_ALGO, \
RDATA_TYPE_BASE64}, \
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 49-58 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 59-68 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 69-78 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 79-88 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 89-98 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 99-108 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 109-118 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 119-128 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 129-138 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 139-148 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 149-158 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 159-168 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 169-178 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 179-188 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 189-198 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 199-208 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 209-218 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 219-228 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 229-238 */\
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, /* skip 239-248 */\
{}, /* skip 249 */\
{RDATA_TYPE_DNAME, /* TSIG 250 */\
RDATA_TYPE_INT48, \
RDATA_TYPE_INT16, \
RDATA_TYPE_INT16, \
RDATA_TYPE_HEX, \
RDATA_TYPE_INT16, \
RDATA_TYPE_INT16, \
RDATA_TYPE_HEX}, \
{}, /* IXFR */\
{}, /* AXFR */\
{}, /* MAILB */\
{}, /* MAILA */\
{} /* ANY */\
}
/* set or clr packet flags */
#define SET_QR(x) ((x)->flags.qr) = 1
#define CLR_QR(x) ((x)->flags.qr) = 0
#define SET_RD(x) ((x)->flags.rd) = 1
#define CLR_RD(x) ((x)->flags.rd) = 0
#define SET_RA(x) ((x)->flags.ra) = 1
#define CLR_RA(x) ((x)->flags.ra) = 0
#define SET_AD(x) ((x)->flags.ad) = 1
#define CLR_AD(x) ((x)->flags.ad) = 0
#define SET_CD(x) ((x)->flags.cd) = 1
#define CLR_CD(x) ((x)->flags.cd) = 0
#define SET_AA(x) ((x)->flags.aa) = 1
#define CLR_AA(x) ((x)->flags.aa) = 0
/* get macros */
#define GET_TC(x) (x)->flags.tc
/* more pkt specifics */
#define SET_UDPSIZE(x, y) ((x)->udppacketsize) = (y)
#define SET_RCODE(x, y) ((x)->opt.xrcode) = (y)
#define SET_DNSSEC(x) ((x)->opt.dnssec_ok) = 1
#define SET_VERSION(x,y) ((x)->opt.dnssec_ok) = (y)
#define GET_UDPSIZE(x) ((x)->udppacketsize)
#define GET_RCODE(x) ((x)->opt.xrcode)
#define GET_DNSSEC(x) ((x)->opt.dnssec_ok)
#define GET_VERSION(x) ((x)->opt.version)
extern struct gtab ztypes[];
extern struct gtab zclasses[];
extern struct gtab rcodes[];
extern int have_drill_opt;
#define MAX_RD_COUNT 25
extern int rr_rdata_types[65535][MAX_RD_COUNT];
uint16_t intbyname(const char *, struct gtab *);
uint16_t typebyname(const char *, struct gtab *);
const char * namebyint(uint16_t, struct gtab *);
char * typebyint(uint16_t, struct gtab *);
const char * classbyint(uint16_t, struct gtab *);
uint8_t dpacket_type(struct t_dpacket *);
uint16_t signature_covered_type(struct t_rr *);
#define PKT_REFERRAL 1
#define PKT_NXDOMAIN 2
#define PKT_NODATA 3
#define PKT_ANSWER 4
#define PKT_ERROR 8 /* no answer, no connection, empty packet */
#endif /* _DNSTYPES_H_ */
distrib
>
Mandriva
>
2011.0
>
i586
>
media
>
contrib-release-debug
>
by-pkgid
>
e15638eab2afcd5cb258393c684c3bbc
>
files
>
21
