/*
This file is part of GNUnet
- (C) 2010-2013 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2010-2014 GNUnet e.V.
- GNUnet 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, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
- * @file include/gnunet_dnsparser_lib.h
- * @brief API for helper library to parse DNS packets.
* @author Philipp Toelke
* @author Christian Grothoff
+ *
+ * @file
+ * API for helper library to parse DNS packets.
+ *
+ * @defgroup dns-parser DNS parser library
+ * Helper library to parse DNS packets.
+ * @{
*/
#ifndef GNUNET_DNSPARSER_LIB_H
#define GNUNET_DNSPARSER_LIB_H
#include "gnunet_util_lib.h"
-#include "gnunet_tun_lib.h"
/**
* Maximum length of a label in DNS.
/**
* A few common DNS types.
*/
+#define GNUNET_DNSPARSER_TYPE_ANY 0
#define GNUNET_DNSPARSER_TYPE_A 1
#define GNUNET_DNSPARSER_TYPE_NS 2
#define GNUNET_DNSPARSER_TYPE_CNAME 5
#define GNUNET_DNSPARSER_TYPE_PTR 12
#define GNUNET_DNSPARSER_TYPE_MX 15
#define GNUNET_DNSPARSER_TYPE_TXT 16
+#define GNUNET_DNSPARSER_TYPE_RP 17
+#define GNUNET_DNSPARSER_TYPE_AFSDB 18
+#define GNUNET_DNSPARSER_TYPE_SIG 24
+#define GNUNET_DNSPARSER_TYPE_KEY 25
#define GNUNET_DNSPARSER_TYPE_AAAA 28
+#define GNUNET_DNSPARSER_TYPE_LOC 29
#define GNUNET_DNSPARSER_TYPE_SRV 33
+#define GNUNET_DNSPARSER_TYPE_NAPTR 35
+#define GNUNET_DNSPARSER_TYPE_KX 36
#define GNUNET_DNSPARSER_TYPE_CERT 37
+#define GNUNET_DNSPARSER_TYPE_DNAME 39
+#define GNUNET_DNSPARSER_TYPE_APL 42
+#define GNUNET_DNSPARSER_TYPE_DS 43
+#define GNUNET_DNSPARSER_TYPE_SSHFP 44
+#define GNUNET_DNSPARSER_TYPE_IPSECKEY 45
+#define GNUNET_DNSPARSER_TYPE_RRSIG 46
+#define GNUNET_DNSPARSER_TYPE_NSEC 47
+#define GNUNET_DNSPARSER_TYPE_DNSKEY 48
+#define GNUNET_DNSPARSER_TYPE_DHCID 49
+#define GNUNET_DNSPARSER_TYPE_NSEC3 50
+#define GNUNET_DNSPARSER_TYPE_NSEC3PARAM 51
#define GNUNET_DNSPARSER_TYPE_TLSA 52
-
+#define GNUNET_DNSPARSER_TYPE_HIP 55
+#define GNUNET_DNSPARSER_TYPE_CDS 59
+#define GNUNET_DNSPARSER_TYPE_CDNSKEY 60
+#define GNUNET_DNSPARSER_TYPE_OPENPGPKEY 61
+#define GNUNET_DNSPARSER_TYPE_TKEY 249
+#define GNUNET_DNSPARSER_TYPE_TSIG 250
+#define GNUNET_DNSPARSER_TYPE_URI 256
+#define GNUNET_DNSPARSER_TYPE_TA 32768
/**
* A DNS query.
/**
* Name of the record that the query is for (0-terminated).
* In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use 'GNUNET_DNSPARSER_check_label' to test if an
+ * as necessary. Use #GNUNET_DNSPARSER_check_label() to test if an
* individual label is well-formed. If a given name is not well-formed,
* creating the DNS packet will fail.
*/
/**
* Name of the mail server.
* In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use 'GNUNET_DNSPARSER_check_label' to test if an
+ * as necessary. Use #GNUNET_DNSPARSER_check_label() to test if an
* individual label is well-formed. If a given name is not well-formed,
* creating the DNS packet will fail.
*/
/**
- * Information from SRV records (RFC 2782). The 'service', 'proto'
- * and 'domain_name' fields together give the DNS-name which for SRV
- * records is of the form "_$SERVICE._$PROTO.$DOMAIN_NAME". The DNS
- * parser provides the full name in 'struct DNSPARSER_Record' and the
- * individual components in the respective fields of this struct.
- * When serializing, you CAN set the 'name' field of 'struct
- * GNUNET_DNSPARSER_Record' to NULL, in which case the DNSPARSER code
- * will populate 'name' from the 'service', 'proto' and 'domain_name'
- * fields in this struct.
+ * Information from SRV records (RFC 2782).
*/
struct GNUNET_DNSPARSER_SrvRecord
{
- /**
- * Service name without the underscore (!). Note that RFC 6335 clarifies the
- * set of legal characters for service names.
- * In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use 'GNUNET_DNSPARSER_check_label' to test if an
- * individual label is well-formed. If a given name is not well-formed,
- * creating the DNS packet will fail.
- */
- char *service;
-
- /**
- * Transport protocol (typcially "tcp" or "udp", but others might be allowed).
- * Without the underscore (!).
- */
- char *proto;
-
- /**
- * Domain name for which the record is valid
- * In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use 'GNUNET_DNSPARSER_check_label' to test if an
- * individual label is well-formed. If a given name is not well-formed,
- * creating the DNS packet will fail.
- */
- char *domain_name;
-
/**
* Hostname offering the service.
* In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use 'GNUNET_DNSPARSER_check_label' to test if an
+ * as necessary. Use #GNUNET_DNSPARSER_check_label() to test if an
* individual label is well-formed. If a given name is not well-formed,
* creating the DNS packet will fail.
*/
/**
* DNSCERT algorithms as defined in http://www.iana.org/assignments/
- * dns-sec-alg-numbers/dns-sec-alg-numbers.xhtml#dns-sec-alg-numbers-1
+ * dns-sec-alg-numbers/dns-sec-alg-numbers.xhtml, under dns-sec-alg-numbers-1
*/
enum GNUNET_DNSPARSER_CertAlgorithm
{
* The domainname of the name server that was the
* original or primary source of data for this zone.
* In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use #GNUNET_DNSPARSER_check_label to test if an
+ * as necessary. Use #GNUNET_DNSPARSER_check_label() to test if an
* individual label is well-formed. If a given name is not well-formed,
* creating the DNS packet will fail.
*/
* A domainname which specifies the mailbox of the
* person responsible for this zone.
* In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use 'GNUNET_DNSPARSER_check_label' to test if an
+ * as necessary. Use #GNUNET_DNSPARSER_check_label() to test if an
* individual label is well-formed. If a given name is not well-formed,
* creating the DNS packet will fail.
*/
/**
* Name of the record that the query is for (0-terminated).
* In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use #GNUNET_DNSPARSER_check_label to test if an
+ * as necessary. Use #GNUNET_DNSPARSER_check_label() to test if an
* individual label is well-formed. If a given name is not well-formed,
* creating the DNS packet will fail.
*/
/**
* For NS, CNAME and PTR records, this is the uncompressed 0-terminated hostname.
- * In UTF-8 format. The library will convert from and to DNS-IDNA
- * as necessary. Use #GNUNET_DNSPARSER_check_label to test if an
- * individual label is well-formed. If a given name is not well-formed,
- * creating the DNS packet will fail.
+ * In UTF-8 format. The library will convert from and to DNS-IDNA
+ * as necessary. Use #GNUNET_DNSPARSER_check_label() to test if an
+ * individual label is well-formed. If a given name is not well-formed,
+ * creating the DNS packet will fail.
*/
char *hostname;
/**
* Parse a DNS SRV record.
*
- * @param r_name name of the SRV record
* @param udp_payload reference to UDP packet
* @param udp_payload_length length of @a udp_payload
* @param off pointer to the offset of the query to parse in the SRV record (to be
* @return the parsed SRV record, NULL on error
*/
struct GNUNET_DNSPARSER_SrvRecord *
-GNUNET_DNSPARSER_parse_srv (const char *r_name,
- const char *udp_payload,
+GNUNET_DNSPARSER_parse_srv (const char *udp_payload,
size_t udp_payload_length,
size_t *off);
GNUNET_DNSPARSER_free_cert (struct GNUNET_DNSPARSER_CertRecord *cert);
+/**
+ * Convert a block of binary data to HEX.
+ *
+ * @param data binary data to convert
+ * @param data_size number of bytes in @a data
+ * @return HEX string (lower case)
+ */
+char *
+GNUNET_DNSPARSER_bin_to_hex (const void *data,
+ size_t data_size);
+
+
+/**
+ * Convert a HEX string to block of binary data.
+ *
+ * @param hex HEX string to convert (may contain mixed case)
+ * @param data where to write result, must be
+ * at least `strlen(hex)/2` bytes long
+ * @return number of bytes written to data
+ */
+size_t
+GNUNET_DNSPARSER_hex_to_bin (const char *hex,
+ void *data);
+
+
#endif
+
+/** @} */ /* end of group */
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