456 lines
10 KiB
C
456 lines
10 KiB
C
#ifndef _ARPA_NAMESER_H
|
|
#define _ARPA_NAMESER_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#define __NAMESER 19991006
|
|
#define NS_PACKETSZ 512
|
|
#define NS_MAXDNAME 1025
|
|
#define NS_MAXMSG 65535
|
|
#define NS_MAXCDNAME 255
|
|
#define NS_MAXLABEL 63
|
|
#define NS_HFIXEDSZ 12
|
|
#define NS_QFIXEDSZ 4
|
|
#define NS_RRFIXEDSZ 10
|
|
#define NS_INT32SZ 4
|
|
#define NS_INT16SZ 2
|
|
#define NS_INT8SZ 1
|
|
#define NS_INADDRSZ 4
|
|
#define NS_IN6ADDRSZ 16
|
|
#define NS_CMPRSFLGS 0xc0
|
|
#define NS_DEFAULTPORT 53
|
|
|
|
typedef enum __ns_sect {
|
|
ns_s_qd = 0,
|
|
ns_s_zn = 0,
|
|
ns_s_an = 1,
|
|
ns_s_pr = 1,
|
|
ns_s_ns = 2,
|
|
ns_s_ud = 2,
|
|
ns_s_ar = 3,
|
|
ns_s_max = 4
|
|
} ns_sect;
|
|
|
|
typedef struct __ns_msg {
|
|
const unsigned char *_msg, *_eom;
|
|
uint16_t _id, _flags, _counts[ns_s_max];
|
|
const unsigned char *_sections[ns_s_max];
|
|
ns_sect _sect;
|
|
int _rrnum;
|
|
const unsigned char *_msg_ptr;
|
|
} ns_msg;
|
|
|
|
struct _ns_flagdata { int mask, shift; };
|
|
extern const struct _ns_flagdata _ns_flagdata[];
|
|
|
|
#define ns_msg_id(handle) ((handle)._id + 0)
|
|
#define ns_msg_base(handle) ((handle)._msg + 0)
|
|
#define ns_msg_end(handle) ((handle)._eom + 0)
|
|
#define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
|
|
#define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
|
|
#define ns_msg_getflag(handle, flag) \
|
|
(((handle)._flags & _ns_flagdata[flag].mask) >> _ns_flagdata[flag].shift)
|
|
|
|
typedef struct __ns_rr {
|
|
char name[NS_MAXDNAME];
|
|
uint16_t type;
|
|
uint16_t rr_class;
|
|
uint32_t ttl;
|
|
uint16_t rdlength;
|
|
const unsigned char *rdata;
|
|
} ns_rr;
|
|
|
|
#define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
|
|
#define ns_rr_type(rr) ((ns_type)((rr).type + 0))
|
|
#define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
|
|
#define ns_rr_ttl(rr) ((rr).ttl + 0)
|
|
#define ns_rr_rdlen(rr) ((rr).rdlength + 0)
|
|
#define ns_rr_rdata(rr) ((rr).rdata + 0)
|
|
|
|
typedef enum __ns_flag {
|
|
ns_f_qr,
|
|
ns_f_opcode,
|
|
ns_f_aa,
|
|
ns_f_tc,
|
|
ns_f_rd,
|
|
ns_f_ra,
|
|
ns_f_z,
|
|
ns_f_ad,
|
|
ns_f_cd,
|
|
ns_f_rcode,
|
|
ns_f_max
|
|
} ns_flag;
|
|
|
|
typedef enum __ns_opcode {
|
|
ns_o_query = 0,
|
|
ns_o_iquery = 1,
|
|
ns_o_status = 2,
|
|
ns_o_notify = 4,
|
|
ns_o_update = 5,
|
|
ns_o_max = 6
|
|
} ns_opcode;
|
|
|
|
typedef enum __ns_rcode {
|
|
ns_r_noerror = 0,
|
|
ns_r_formerr = 1,
|
|
ns_r_servfail = 2,
|
|
ns_r_nxdomain = 3,
|
|
ns_r_notimpl = 4,
|
|
ns_r_refused = 5,
|
|
ns_r_yxdomain = 6,
|
|
ns_r_yxrrset = 7,
|
|
ns_r_nxrrset = 8,
|
|
ns_r_notauth = 9,
|
|
ns_r_notzone = 10,
|
|
ns_r_max = 11,
|
|
ns_r_badvers = 16,
|
|
ns_r_badsig = 16,
|
|
ns_r_badkey = 17,
|
|
ns_r_badtime = 18
|
|
} ns_rcode;
|
|
|
|
typedef enum __ns_update_operation {
|
|
ns_uop_delete = 0,
|
|
ns_uop_add = 1,
|
|
ns_uop_max = 2
|
|
} ns_update_operation;
|
|
|
|
struct ns_tsig_key {
|
|
char name[NS_MAXDNAME], alg[NS_MAXDNAME];
|
|
unsigned char *data;
|
|
int len;
|
|
};
|
|
typedef struct ns_tsig_key ns_tsig_key;
|
|
|
|
struct ns_tcp_tsig_state {
|
|
int counter;
|
|
struct dst_key *key;
|
|
void *ctx;
|
|
unsigned char sig[NS_PACKETSZ];
|
|
int siglen;
|
|
};
|
|
typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
|
|
|
|
#define NS_TSIG_FUDGE 300
|
|
#define NS_TSIG_TCP_COUNT 100
|
|
#define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"
|
|
|
|
#define NS_TSIG_ERROR_NO_TSIG -10
|
|
#define NS_TSIG_ERROR_NO_SPACE -11
|
|
#define NS_TSIG_ERROR_FORMERR -12
|
|
|
|
typedef enum __ns_type {
|
|
ns_t_invalid = 0,
|
|
ns_t_a = 1,
|
|
ns_t_ns = 2,
|
|
ns_t_md = 3,
|
|
ns_t_mf = 4,
|
|
ns_t_cname = 5,
|
|
ns_t_soa = 6,
|
|
ns_t_mb = 7,
|
|
ns_t_mg = 8,
|
|
ns_t_mr = 9,
|
|
ns_t_null = 10,
|
|
ns_t_wks = 11,
|
|
ns_t_ptr = 12,
|
|
ns_t_hinfo = 13,
|
|
ns_t_minfo = 14,
|
|
ns_t_mx = 15,
|
|
ns_t_txt = 16,
|
|
ns_t_rp = 17,
|
|
ns_t_afsdb = 18,
|
|
ns_t_x25 = 19,
|
|
ns_t_isdn = 20,
|
|
ns_t_rt = 21,
|
|
ns_t_nsap = 22,
|
|
ns_t_nsap_ptr = 23,
|
|
ns_t_sig = 24,
|
|
ns_t_key = 25,
|
|
ns_t_px = 26,
|
|
ns_t_gpos = 27,
|
|
ns_t_aaaa = 28,
|
|
ns_t_loc = 29,
|
|
ns_t_nxt = 30,
|
|
ns_t_eid = 31,
|
|
ns_t_nimloc = 32,
|
|
ns_t_srv = 33,
|
|
ns_t_atma = 34,
|
|
ns_t_naptr = 35,
|
|
ns_t_kx = 36,
|
|
ns_t_cert = 37,
|
|
ns_t_a6 = 38,
|
|
ns_t_dname = 39,
|
|
ns_t_sink = 40,
|
|
ns_t_opt = 41,
|
|
ns_t_apl = 42,
|
|
ns_t_tkey = 249,
|
|
ns_t_tsig = 250,
|
|
ns_t_ixfr = 251,
|
|
ns_t_axfr = 252,
|
|
ns_t_mailb = 253,
|
|
ns_t_maila = 254,
|
|
ns_t_any = 255,
|
|
ns_t_zxfr = 256,
|
|
ns_t_max = 65536
|
|
} ns_type;
|
|
|
|
#define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \
|
|
(t) == ns_t_mailb || (t) == ns_t_maila)
|
|
#define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)
|
|
#define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))
|
|
#define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
|
|
#define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
|
|
(t) == ns_t_zxfr)
|
|
|
|
typedef enum __ns_class {
|
|
ns_c_invalid = 0,
|
|
ns_c_in = 1,
|
|
ns_c_2 = 2,
|
|
ns_c_chaos = 3,
|
|
ns_c_hs = 4,
|
|
ns_c_none = 254,
|
|
ns_c_any = 255,
|
|
ns_c_max = 65536
|
|
} ns_class;
|
|
|
|
typedef enum __ns_key_types {
|
|
ns_kt_rsa = 1,
|
|
ns_kt_dh = 2,
|
|
ns_kt_dsa = 3,
|
|
ns_kt_private = 254
|
|
} ns_key_types;
|
|
|
|
typedef enum __ns_cert_types {
|
|
cert_t_pkix = 1,
|
|
cert_t_spki = 2,
|
|
cert_t_pgp = 3,
|
|
cert_t_url = 253,
|
|
cert_t_oid = 254
|
|
} ns_cert_types;
|
|
|
|
#define NS_KEY_TYPEMASK 0xC000
|
|
#define NS_KEY_TYPE_AUTH_CONF 0x0000
|
|
#define NS_KEY_TYPE_CONF_ONLY 0x8000
|
|
#define NS_KEY_TYPE_AUTH_ONLY 0x4000
|
|
#define NS_KEY_TYPE_NO_KEY 0xC000
|
|
#define NS_KEY_NO_AUTH 0x8000
|
|
#define NS_KEY_NO_CONF 0x4000
|
|
#define NS_KEY_RESERVED2 0x2000
|
|
#define NS_KEY_EXTENDED_FLAGS 0x1000
|
|
#define NS_KEY_RESERVED4 0x0800
|
|
#define NS_KEY_RESERVED5 0x0400
|
|
#define NS_KEY_NAME_TYPE 0x0300
|
|
#define NS_KEY_NAME_USER 0x0000
|
|
#define NS_KEY_NAME_ENTITY 0x0200
|
|
#define NS_KEY_NAME_ZONE 0x0100
|
|
#define NS_KEY_NAME_RESERVED 0x0300
|
|
#define NS_KEY_RESERVED8 0x0080
|
|
#define NS_KEY_RESERVED9 0x0040
|
|
#define NS_KEY_RESERVED10 0x0020
|
|
#define NS_KEY_RESERVED11 0x0010
|
|
#define NS_KEY_SIGNATORYMASK 0x000F
|
|
#define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \
|
|
NS_KEY_RESERVED4 | \
|
|
NS_KEY_RESERVED5 | \
|
|
NS_KEY_RESERVED8 | \
|
|
NS_KEY_RESERVED9 | \
|
|
NS_KEY_RESERVED10 | \
|
|
NS_KEY_RESERVED11 )
|
|
#define NS_KEY_RESERVED_BITMASK2 0xFFFF
|
|
#define NS_ALG_MD5RSA 1
|
|
#define NS_ALG_DH 2
|
|
#define NS_ALG_DSA 3
|
|
#define NS_ALG_DSS NS_ALG_DSA
|
|
#define NS_ALG_EXPIRE_ONLY 253
|
|
#define NS_ALG_PRIVATE_OID 254
|
|
|
|
#define NS_KEY_PROT_TLS 1
|
|
#define NS_KEY_PROT_EMAIL 2
|
|
#define NS_KEY_PROT_DNSSEC 3
|
|
#define NS_KEY_PROT_IPSEC 4
|
|
#define NS_KEY_PROT_ANY 255
|
|
|
|
#define NS_MD5RSA_MIN_BITS 512
|
|
#define NS_MD5RSA_MAX_BITS 4096
|
|
#define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
|
|
#define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
|
|
#define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)
|
|
#define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)
|
|
|
|
#define NS_DSA_SIG_SIZE 41
|
|
#define NS_DSA_MIN_SIZE 213
|
|
#define NS_DSA_MAX_BYTES 405
|
|
|
|
#define NS_SIG_TYPE 0
|
|
#define NS_SIG_ALG 2
|
|
#define NS_SIG_LABELS 3
|
|
#define NS_SIG_OTTL 4
|
|
#define NS_SIG_EXPIR 8
|
|
#define NS_SIG_SIGNED 12
|
|
#define NS_SIG_FOOT 16
|
|
#define NS_SIG_SIGNER 18
|
|
#define NS_NXT_BITS 8
|
|
#define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))
|
|
#define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
|
|
#define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))
|
|
#define NS_NXT_MAX 127
|
|
|
|
#define NS_OPT_DNSSEC_OK 0x8000U
|
|
#define NS_OPT_NSID 3
|
|
|
|
#define NS_GET16(s, cp) (void)((s) = ns_get16(((cp)+=2)-2))
|
|
#define NS_GET32(l, cp) (void)((l) = ns_get32(((cp)+=4)-4))
|
|
#define NS_PUT16(s, cp) ns_put16((s), ((cp)+=2)-2)
|
|
#define NS_PUT32(l, cp) ns_put32((l), ((cp)+=4)-4)
|
|
|
|
unsigned ns_get16(const unsigned char *);
|
|
unsigned long ns_get32(const unsigned char *);
|
|
void ns_put16(unsigned, unsigned char *);
|
|
void ns_put32(unsigned long, unsigned char *);
|
|
|
|
int ns_initparse(const unsigned char *, int, ns_msg *);
|
|
int ns_parserr(ns_msg *, ns_sect, int, ns_rr *);
|
|
int ns_skiprr(const unsigned char *, const unsigned char *, ns_sect, int);
|
|
int ns_name_uncompress(const unsigned char *, const unsigned char *, const unsigned char *, char *, size_t);
|
|
|
|
|
|
#define __BIND 19950621
|
|
|
|
typedef struct {
|
|
unsigned id :16;
|
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
|
unsigned qr: 1;
|
|
unsigned opcode: 4;
|
|
unsigned aa: 1;
|
|
unsigned tc: 1;
|
|
unsigned rd: 1;
|
|
unsigned ra: 1;
|
|
unsigned unused :1;
|
|
unsigned ad: 1;
|
|
unsigned cd: 1;
|
|
unsigned rcode :4;
|
|
#else
|
|
unsigned rd :1;
|
|
unsigned tc :1;
|
|
unsigned aa :1;
|
|
unsigned opcode :4;
|
|
unsigned qr :1;
|
|
unsigned rcode :4;
|
|
unsigned cd: 1;
|
|
unsigned ad: 1;
|
|
unsigned unused :1;
|
|
unsigned ra :1;
|
|
#endif
|
|
unsigned qdcount :16;
|
|
unsigned ancount :16;
|
|
unsigned nscount :16;
|
|
unsigned arcount :16;
|
|
} 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 INT8SZ NS_INT8SZ
|
|
#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_A6 ns_t_a6
|
|
#define T_DNAME ns_t_dname
|
|
#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
|
|
|
|
#define GETSHORT NS_GET16
|
|
#define GETLONG NS_GET32
|
|
#define PUTSHORT NS_PUT16
|
|
#define PUTLONG NS_PUT32
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|