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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include "macro.h"
/* DNS record types, taken from
* http://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml.
*/
enum {
/* 0 is reserved */
DNS_TYPE_A = 0x01,
DNS_TYPE_NS,
DNS_TYPE_MD,
DNS_TYPE_MF,
DNS_TYPE_CNAME,
DNS_TYPE_SOA,
DNS_TYPE_MB,
DNS_TYPE_MG,
DNS_TYPE_MR,
DNS_TYPE_NULL,
DNS_TYPE_WKS,
DNS_TYPE_PTR,
DNS_TYPE_HINFO,
DNS_TYPE_MINFO,
DNS_TYPE_MX,
DNS_TYPE_TXT,
DNS_TYPE_RP,
DNS_TYPE_AFSDB,
DNS_TYPE_X25,
DNS_TYPE_ISDN,
DNS_TYPE_RT,
DNS_TYPE_NSAP,
DNS_TYPE_NSAP_PTR,
DNS_TYPE_SIG,
DNS_TYPE_KEY,
DNS_TYPE_PX,
DNS_TYPE_GPOS,
DNS_TYPE_AAAA,
DNS_TYPE_LOC,
DNS_TYPE_NXT,
DNS_TYPE_EID,
DNS_TYPE_NIMLOC,
DNS_TYPE_SRV,
DNS_TYPE_ATMA,
DNS_TYPE_NAPTR,
DNS_TYPE_KX,
DNS_TYPE_CERT,
DNS_TYPE_A6,
DNS_TYPE_DNAME,
DNS_TYPE_SINK,
DNS_TYPE_OPT, /* EDNS0 option */
DNS_TYPE_APL,
DNS_TYPE_DS,
DNS_TYPE_SSHFP,
DNS_TYPE_IPSECKEY,
DNS_TYPE_RRSIG,
DNS_TYPE_NSEC,
DNS_TYPE_DNSKEY,
DNS_TYPE_DHCID,
DNS_TYPE_NSEC3,
DNS_TYPE_NSEC3PARAM,
DNS_TYPE_TLSA,
DNS_TYPE_SMIMEA, /* RFC 8162 */
/* 0x36 (54) is not assigned */
DNS_TYPE_HIP = 0x37,
DNS_TYPE_NINFO,
DNS_TYPE_RKEY,
DNS_TYPE_TALINK,
DNS_TYPE_CDS,
DNS_TYPE_CDNSKEY,
DNS_TYPE_OPENPGPKEY,
DNS_TYPE_CSYNC,
DNS_TYPE_ZONEMD,
DNS_TYPE_SVCB, /* RFC 9460 */
DNS_TYPE_HTTPS, /* RFC 9460 */
/* 0x42…0x62 (66…98) are not assigned */
DNS_TYPE_SPF = 0x63,
DNS_TYPE_UINFO,
DNS_TYPE_UID,
DNS_TYPE_GID,
DNS_TYPE_UNSPEC,
DNS_TYPE_NID,
DNS_TYPE_L32,
DNS_TYPE_L64,
DNS_TYPE_LP,
DNS_TYPE_EUI48,
DNS_TYPE_EUI64,
/* 0x6e…0xf8 (110…248) are not assigned */
DNS_TYPE_TKEY = 0xF9,
DNS_TYPE_TSIG,
DNS_TYPE_IXFR,
DNS_TYPE_AXFR,
DNS_TYPE_MAILB,
DNS_TYPE_MAILA,
DNS_TYPE_ANY,
DNS_TYPE_URI,
DNS_TYPE_CAA,
DNS_TYPE_AVC,
DNS_TYPE_DOA,
DNS_TYPE_AMTRELAY,
DNS_TYPE_RESINFO,
/* 0x106…0x7fff (262…32767) are not assigned */
DNS_TYPE_TA = 0x8000,
DNS_TYPE_DLV,
/* 32770…65279 are not assigned */
/* 65280…65534 are for private use */
/* 65535 is reserved */
_DNS_TYPE_MAX,
_DNS_TYPE_INVALID = -EINVAL,
};
assert_cc(DNS_TYPE_SMIMEA == 53);
assert_cc(DNS_TYPE_HTTPS == 65);
assert_cc(DNS_TYPE_EUI64 == 109);
assert_cc(DNS_TYPE_RESINFO == 261);
assert_cc(DNS_TYPE_ANY == 255);
/* DNS record classes, see RFC 1035 */
enum {
DNS_CLASS_IN = 0x01,
DNS_CLASS_ANY = 0xFF,
_DNS_CLASS_MAX,
_DNS_CLASS_INVALID = -EINVAL,
};
#define _DNS_CLASS_STRING_MAX (sizeof "CLASS" + DECIMAL_STR_MAX(uint16_t))
#define _DNS_TYPE_STRING_MAX (sizeof "CLASS" + DECIMAL_STR_MAX(uint16_t))
bool dns_type_is_pseudo(uint16_t type);
bool dns_type_is_valid_query(uint16_t type);
bool dns_type_is_valid_rr(uint16_t type);
bool dns_type_may_redirect(uint16_t type);
bool dns_type_is_dnssec(uint16_t type);
bool dns_type_is_obsolete(uint16_t type);
bool dns_type_may_wildcard(uint16_t type);
bool dns_type_apex_only(uint16_t type);
bool dns_type_needs_authentication(uint16_t type);
bool dns_type_is_zone_transer(uint16_t type);
int dns_type_to_af(uint16_t type);
bool dns_class_is_pseudo(uint16_t class);
bool dns_class_is_valid_rr(uint16_t class);
/* TYPE?? follows http://tools.ietf.org/html/rfc3597#section-5 */
const char *dns_type_to_string(int type);
int dns_type_from_string(const char *s);
const char *dns_class_to_string(uint16_t class);
int dns_class_from_string(const char *name);
/* https://tools.ietf.org/html/draft-ietf-dane-protocol-23#section-7.2 */
const char *tlsa_cert_usage_to_string(uint8_t cert_usage);
/* https://tools.ietf.org/html/draft-ietf-dane-protocol-23#section-7.3 */
const char *tlsa_selector_to_string(uint8_t selector);
/* https://tools.ietf.org/html/draft-ietf-dane-protocol-23#section-7.4 */
const char *tlsa_matching_type_to_string(uint8_t selector);
/* https://tools.ietf.org/html/rfc6844#section-5.1 */
#define CAA_FLAG_CRITICAL (1u << 7)
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