#define T_RRSIG 46 /* new security signature */
#define T_NSEC 47 /* provable insecure information */
#define T_DNSKEY 48 /* new security key */
+#define T_DHCID 49 /* DHCP IDentifier */
+#define T_NSEC3 50 /* Next SECure record v3 */
+#define T_NSEC3PARAM 51 /* NSEC3 PARAMeter */
+#define T_TLSA 52 /* TLS Authentication */
+#define T_SMIMEA 53 /* S/MIME Authentication */
+/* Unassigned */
+#define T_HIP 55 /* Host Identity Protocol */
+#define T_NINFO 56 /* zone status information */
+#define T_RKEY 57 /* Record encryption KEY */
+#define T_TALINK 58 /* Trust Anchor LINK */
+#define T_CDS 59 /* Child Delegation Signer */
+#define T_CDNSKEY 60 /* Child DNSKEY */
+#define T_OPENPGPKEY 61 /* OpenPGP KEY */
+#define T_CSYNC 62 /* Child to parent SYNChronization */
+#define T_ZONEMD 63 /* ZONE data Message Digest */
+#define T_SVCB 64 /* SerViCe Binding */
+#define T_HTTPS 65 /* HTTPS binding */
/* non standard */
#define T_SPF 99 /* sender policy framework */
#define T_UINFO 100 /* user (finger) information */
#define T_UID 101 /* user ID */
#define T_GID 102 /* group ID */
#define T_UNSPEC 103 /* Unspecified format (binary data) */
-#define T_UNSPECA 104 /* "unspecified ASCII". Ugly MIT hack */
+#define T_NID 104 /* Node IDentifier */
+#define T_L32 105 /* Locator 32-bit */
+#define T_L64 106 /* Locator 64-bit */
+#define T_LP 107 /* Locator Pointer */
+#define T_EUI48 108 /* an EUI-48 address */
+#define T_EUI64 109 /* an EUI-64 address */
/* Query type values which do not appear in resource records */
#define T_TKEY 249 /* Transaction Key [RFC2930] */
#define T_TSIG 250 /* Transaction Signature [RFC2845] */
#define T_MAILB 253 /* transfer mailbox records */
#define T_MAILA 254 /* transfer mail agent records */
#define T_ANY 255 /* wildcard match */
+#define T_URI 256 /* uri records [RFC7553] */
+#define T_CAA 257 /* Certification Authority Authorization */
+#define T_AVC 258 /* Application Visibility and Control */
+#define T_DOA 259 /* Digital Object Architecture */
+#define T_AMTRELAY 260 /* Automatic Multicast Tunneling RELAY */
+#define T_TA 32768 /* DNSSEC Trust Authorities */
+#define T_DLV 32769 /* DNSSEC Lookaside Validation */
/*
* Values for class field
#define C_QU 0x8000 /* mDNS QU flag in queries */
#define C_CACHE_FLUSH 0x8000 /* mDNS cache flush flag in replies */
+/*
+ * Values for EDNS option types
+ */
+#define E_LLQ 1 /* long lived queries protocol */
+#define E_UL 2 /* dynamic dns update leases */
+#define E_NSID 3 /* name server identifier */
+#define E_DAU 5 /* signal DNSSEC algorithm understood */
+#define E_DHU 6 /* signal DS hash understood */
+#define E_N3U 7 /* signal NSEC3 hash understood */
+#define E_ECS 8 /* EDNS client subnet */
+#define E_EXPIRE 9 /* zone expiration */
+#define E_COOKIE 10 /* DNS cookies */
+#define E_KEEPALIVE 11 /* TCP keepalive */
+#define E_PADDING 12 /* pad DNS messages */
+#define E_CHAIN 13 /* chain DNS queries */
+#define E_KEYTAG 14 /* EDNS key tag */
+#define E_CLIENTTAG 16 /* EDNS client tag */
+#define E_SERVERTAG 17 /* EDNS server tag */
+
+/*
+ * Values for DNSSEC Algorithms
+ * https://www.iana.org/assignments/dns-sec-alg-numbers/dns-sec-alg-numbers.xhtml
+ */
+
+#define A_DELETE 0
+#define A_RSAMD5 1
+#define A_DH 2
+#define A_DSA 3
+#define A_RSASHA1 5
+#define A_DSA_NSEC3_SHA1 6
+#define A_RSASHA1_NSEC3_SHA1 7
+#define A_RSASHA256 8
+#define A_RSASHA512 10
+#define A_ECC_GOST 12
+#define A_ECDSAP256SHA256 13
+#define A_ECDSAP384SHA384 14
+#define A_ED25519 15
+#define A_ED448 16
+#define A_INDIRECT 252
+#define A_PRIVATEDNS 253
+#define A_PRIVATEOID 254
+
+/*
+ * Values for NSEC3 algorithms
+ * https://www.iana.org/assignments/dnssec-nsec3-parameters/dnssec-nsec3-parameters.xhtml
+ */
+#define NSEC_SHA1 1
+
+/*
+ * Values for delegation signer algorithms
+ * https://www.iana.org/assignments/ds-rr-types/ds-rr-types.xhtml
+ */
+#define DS_SHA1 1
+#define DS_SHA256 2
+#define DS_GOST 3
+#define DS_SHA384 4
+
+
/*
* Status return codes for T_UNSPEC conversion routines
*/
* Structure for query header.
*/
typedef struct {
- uint16_t id; /* query identification number */
- uint8_t flags1; /* first byte of flags */
- uint8_t flags2; /* second byte of flags */
- uint16_t qdcount; /* number of question entries */
- uint16_t ancount; /* number of answer entries */
- uint16_t nscount; /* number of authority entries */
- uint16_t arcount; /* number of resource entries */
-} HEADER;
+ nd_uint16_t id; /* query identification number */
+ nd_uint16_t flags; /* QR, Opcode, AA, TC, RD, RA, RCODE */
+ nd_uint16_t qdcount; /* number of question entries */
+ nd_uint16_t ancount; /* number of answer entries */
+ nd_uint16_t nscount; /* number of authority entries */
+ nd_uint16_t arcount; /* number of resource entries */
+} dns_header_t;
/*
* Macros for subfields of flag fields.
*/
-#define DNS_QR(np) ((np)->flags1 & 0x80) /* response flag */
-#define DNS_OPCODE(np) ((((np)->flags1) >> 3) & 0xF) /* purpose of message */
-#define DNS_AA(np) ((np)->flags1 & 0x04) /* authoritative answer */
-#define DNS_TC(np) ((np)->flags1 & 0x02) /* truncated message */
-#define DNS_RD(np) ((np)->flags1 & 0x01) /* recursion desired */
-
-#define DNS_RA(np) ((np)->flags2 & 0x80) /* recursion available */
-#define DNS_AD(np) ((np)->flags2 & 0x20) /* authentic data from named */
-#define DNS_CD(np) ((np)->flags2 & 0x10) /* checking disabled by resolver */
-#define DNS_RCODE(np) ((np)->flags2 & 0xF) /* response code */
+#define DNS_QR(flags) ((flags) & 0x8000) /* response flag */
+#define DNS_OPCODE(flags) (((flags) >> 11) & 0xF) /* purpose of message */
+#define DNS_AA(flags) (flags & 0x0400) /* authoritative answer */
+#define DNS_TC(flags) (flags & 0x0200) /* truncated message */
+#define DNS_RD(flags) (flags & 0x0100) /* recursion desired */
+#define DNS_RA(flags) (flags & 0x0080) /* recursion available */
+#define DNS_AD(flags) (flags & 0x0020) /* authentic data from named */
+#define DNS_CD(flags) (flags & 0x0010) /* checking disabled by resolver */
+#define DNS_RCODE(flags) (flags & 0x000F) /* response code */
/*
* Defines for handling compressed domain names, EDNS0 labels, etc.
*/
-#define INDIR_MASK 0xc0 /* 11.... */
-#define EDNS0_MASK 0x40 /* 01.... */
+#define TYPE_MASK 0xc0 /* mask for the type bits of the item */
+#define TYPE_INDIR 0xc0 /* 11.... - pointer */
+#define TYPE_RESERVED 0x80 /* 10.... - reserved */
+#define TYPE_EDNS0 0x40 /* 01.... - EDNS(0) label */
+#define TYPE_LABEL 0x00 /* 00.... - regular label */
# define EDNS0_ELT_BITLABEL 0x01
-/*
- * Structure for passing resource records around.
- */
-struct rrec {
- int16_t r_zone; /* zone number */
- int16_t r_class; /* class number */
- int16_t r_type; /* type number */
- uint32_t r_ttl; /* time to live */
- int r_size; /* size of data area */
- char *r_data; /* pointer to data */
-};
-
-/*
- * Inline versions of get/put short/long. Pointer is advanced.
- * We also assume that a "uint16_t" holds 2 "chars"
- * and that a "uint32_t" holds 4 "chars".
- *
- * These macros demonstrate the property of C whereby it can be
- * portable or it can be elegant but never both.
- */
-#define GETSHORT(s, cp) { \
- register u_char *t_cp = (u_char *)(cp); \
- (s) = ((uint16_t)t_cp[0] << 8) | (uint16_t)t_cp[1]; \
- (cp) += 2; \
-}
-
-#define GETLONG(l, cp) { \
- register u_char *t_cp = (u_char *)(cp); \
- (l) = (((uint32_t)t_cp[0]) << 24) \
- | (((uint32_t)t_cp[1]) << 16) \
- | (((uint32_t)t_cp[2]) << 8) \
- | (((uint32_t)t_cp[3])); \
- (cp) += 4; \
-}
-
-#define PUTSHORT(s, cp) { \
- register uint16_t t_s = (uint16_t)(s); \
- register u_char *t_cp = (u_char *)(cp); \
- *t_cp++ = t_s >> 8; \
- *t_cp = t_s; \
- (cp) += 2; \
-}
-
-/*
- * Warning: PUTLONG --no-longer-- destroys its first argument. if you
- * were depending on this "feature", you will lose.
- */
-#define PUTLONG(l, cp) { \
- register uint32_t t_l = (uint32_t)(l); \
- register u_char *t_cp = (u_char *)(cp); \
- *t_cp++ = t_l >> 24; \
- *t_cp++ = t_l >> 16; \
- *t_cp++ = t_l >> 8; \
- *t_cp = t_l; \
- (cp) += 4; \
-}
-
#endif /* !_NAMESER_H_ */
projects / tcpdump / blobdiff