Adding upstream version 2.7.6.upstream/2.7.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 157 insertions, 0 deletions

diff --git a/src/libknot/consts.h b/src/libknot/consts.h
new file mode 100644
index 0000000..e516b9f
--- /dev/null
+++ b/src/libknot/consts.h
@@ -0,0 +1,157 @@
+/*  Copyright (C) 2017 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/*!
+ * \file
+ *
+ * \brief Some DNS-related constants.
+ *
+ * \addtogroup libknot
+ * @{
+ */
+
+#pragma once
+
+/*!
+ * \brief Basic limits for domain names (RFC 1035).
+ */
+#define KNOT_DNAME_MAXLEN      255 /*!< 1-byte maximum. */
+#define KNOT_DNAME_MAXLABELS   127 /*!< 1-char labels. */
+#define KNOT_DNAME_MAXLABELLEN  63 /*!< 2^6 - 1 */
+
+/*!
+ * \brief The longest textual dname representation.
+ *
+ * 3 x maximum_label + 1 x rest_label + 1 x zero_label
+ * Each dname label byte takes 4 characters (\\DDD).
+ * Each label takes 1 more byte for '.' character.
+ *
+ * KNOT_DNAME_TXT_MAXLEN = 3x(1 + 63x4) + 1x(1 + 61x4) + 1x(1 + 0)
+ */
+#define KNOT_DNAME_TXT_MAXLEN 1005
+
+/*!
+ * \brief Address family numbers.
+ *
+ * http://www.iana.org/assignments/address-family-numbers/address-family-numbers.xml
+ */
+typedef enum {
+	KNOT_ADDR_FAMILY_IPV4 = 1, /*!< IP version 4. */
+	KNOT_ADDR_FAMILY_IPV6 = 2  /*!< IP version 6. */
+} knot_addr_family_t;
+
+/*!
+ * \brief DNS operation codes (OPCODEs).
+ *
+ * http://www.iana.org/assignments/dns-parameters/dns-parameters.xml
+ */
+typedef enum {
+	KNOT_OPCODE_QUERY  = 0, /*!< Standard query. */
+	KNOT_OPCODE_IQUERY = 1, /*!< Inverse query. */
+	KNOT_OPCODE_STATUS = 2, /*!< Server status request. */
+	KNOT_OPCODE_NOTIFY = 4, /*!< Notify message. */
+	KNOT_OPCODE_UPDATE = 5  /*!< Dynamic update. */
+} knot_opcode_t;
+
+/*!
+ * \brief DNS reply codes (RCODEs).
+ *
+ * http://www.iana.org/assignments/dns-parameters/dns-parameters.xml
+ */
+typedef enum {
+	KNOT_RCODE_NOERROR   =  0, /*!< No error. */
+	KNOT_RCODE_FORMERR   =  1, /*!< Format error. */
+	KNOT_RCODE_SERVFAIL  =  2, /*!< Server failure. */
+	KNOT_RCODE_NXDOMAIN  =  3, /*!< Non-existent domain. */
+	KNOT_RCODE_NOTIMPL   =  4, /*!< Not implemented. */
+	KNOT_RCODE_REFUSED   =  5, /*!< Refused. */
+	KNOT_RCODE_YXDOMAIN  =  6, /*!< Name should not exist. */
+	KNOT_RCODE_YXRRSET   =  7, /*!< RR set should not exist. */
+	KNOT_RCODE_NXRRSET   =  8, /*!< RR set does not exist. */
+	KNOT_RCODE_NOTAUTH   =  9, /*!< Server not authoritative. / Query not authorized. */
+	KNOT_RCODE_NOTZONE   = 10, /*!< Name is not inside zone. */
+	KNOT_RCODE_BADVERS   = 16, /*!< Bad OPT Version. */
+	KNOT_RCODE_BADSIG    = 16, /*!< (TSIG) Signature failure. */
+	KNOT_RCODE_BADKEY    = 17, /*!< (TSIG) Key is not supported. */
+	KNOT_RCODE_BADTIME   = 18, /*!< (TSIG) Signature out of time window. */
+	KNOT_RCODE_BADMODE   = 19, /*!< (TKEY) Bad mode. */
+	KNOT_RCODE_BADNAME   = 20, /*!< (TKEY) Duplicate key name. */
+	KNOT_RCODE_BADALG    = 21, /*!< (TKEY) Algorithm not supported. */
+	KNOT_RCODE_BADTRUNC  = 22, /*!< (TSIG) Bad truncation. */
+	KNOT_RCODE_BADCOOKIE = 23  /*!< Bad/missing server cookie. */
+} knot_rcode_t;
+
+/*!
+ * \brief DNS packet section identifiers.
+ */
+typedef enum {
+	KNOT_ANSWER       = 0,
+	KNOT_AUTHORITY    = 1,
+	KNOT_ADDITIONAL   = 2
+} knot_section_t;
+
+/*!
+ * \brief DS digest lengths.
+ */
+enum knot_ds_algorithm_len
+{
+	KNOT_DS_DIGEST_LEN_SHA1   = 20, /*!< RFC 3658 */
+	KNOT_DS_DIGEST_LEN_SHA256 = 32, /*!< RFC 4509 */
+	KNOT_DS_DIGEST_LEN_GOST   = 32, /*!< RFC 5933 */
+	KNOT_DS_DIGEST_LEN_SHA384 = 48  /*!< RFC 6605 */
+};
+
+/*!
+ * \brief Constants for DNSSEC algorithm types.
+ *
+ * Source: http://www.iana.org/assignments/ds-rr-types/ds-rr-types.xml
+ */
+typedef enum {
+	KNOT_DS_ALG_SHA1   = 1,
+	KNOT_DS_ALG_SHA256 = 2,
+	KNOT_DS_ALG_GOST   = 3,
+	KNOT_DS_ALG_SHA384 = 4
+} knot_ds_algorithm_t;
+
+/*!
+ * \brief DNSSEC algorithm numbers.
+ *
+ * http://www.iana.org/assignments/dns-sec-alg-numbers/dns-sec-alg-numbers.xml
+ */
+typedef enum {
+	KNOT_DNSSEC_ALG_RSAMD5             =   1,
+	KNOT_DNSSEC_ALG_DH                 =   2,
+	KNOT_DNSSEC_ALG_DSA                =   3,
+
+	KNOT_DNSSEC_ALG_RSASHA1            =   5,
+	KNOT_DNSSEC_ALG_DSA_NSEC3_SHA1     =   6,
+	KNOT_DNSSEC_ALG_RSASHA1_NSEC3_SHA1 =   7,
+	KNOT_DNSSEC_ALG_RSASHA256          =   8,
+
+	KNOT_DNSSEC_ALG_RSASHA512          =  10,
+
+	KNOT_DNSSEC_ALG_ECC_GOST           =  12,
+	KNOT_DNSSEC_ALG_ECDSAP256SHA256    =  13,
+	KNOT_DNSSEC_ALG_ECDSAP384SHA384    =  14,
+
+	KNOT_DNSSEC_ALG_ED25519            =  15,
+	KNOT_DNSSEC_ALG_ED448              =  16,
+
+	KNOT_DNSSEC_ALG_INDIRECT           = 252,
+	KNOT_DNSSEC_ALG_PRIVATEDNS         = 253,
+	KNOT_DNSSEC_ALG_PRIVATEOID         = 254
+} knot_dnssec_algorithm_t;
+
+/*! @} */