1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2014 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include <netinet/in.h>
27 #include "in-addr-util.h"
30 typedef struct DnsResourceKey DnsResourceKey;
31 typedef struct DnsResourceRecord DnsResourceRecord;
33 /* DNS record classes, see RFC 1035 */
38 _DNS_CLASS_INVALID = -1
41 struct DnsResourceKey {
44 char *_name; /* don't access directy, use DNS_RESOURCE_KEY_NAME()! */
47 struct DnsResourceRecord {
67 } ptr, ns, cname, dname;
79 struct in_addr in_addr;
83 struct in6_addr in6_addr;
118 /* http://tools.ietf.org/html/rfc4034#section-2.1 */
120 bool zone_key_flag:1;
127 /* http://tools.ietf.org/html/rfc4034#section-3.1 */
129 uint16_t type_covered;
132 uint32_t original_ttl;
138 size_t signature_size;
143 static inline const char* DNS_RESOURCE_KEY_NAME(const DnsResourceKey *key) {
144 if (_unlikely_(!key))
150 return (char*) key + sizeof(DnsResourceKey);
153 DnsResourceKey* dns_resource_key_new(uint16_t class, uint16_t type, const char *name);
154 DnsResourceKey* dns_resource_key_new_consume(uint16_t class, uint16_t type, char *name);
155 DnsResourceKey* dns_resource_key_ref(DnsResourceKey *key);
156 DnsResourceKey* dns_resource_key_unref(DnsResourceKey *key);
157 int dns_resource_key_equal(const DnsResourceKey *a, const DnsResourceKey *b);
158 int dns_resource_key_match_rr(const DnsResourceKey *key, const DnsResourceRecord *rr);
159 int dns_resource_key_match_cname(const DnsResourceKey *key, const DnsResourceRecord *rr);
160 int dns_resource_key_to_string(const DnsResourceKey *key, char **ret);
161 DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceKey*, dns_resource_key_unref);
163 DnsResourceRecord* dns_resource_record_new(DnsResourceKey *key);
164 DnsResourceRecord* dns_resource_record_new_full(uint16_t class, uint16_t type, const char *name);
165 DnsResourceRecord* dns_resource_record_ref(DnsResourceRecord *rr);
166 DnsResourceRecord* dns_resource_record_unref(DnsResourceRecord *rr);
167 int dns_resource_record_new_reverse(DnsResourceRecord **ret, int family, const union in_addr_union *address, const char *name);
168 int dns_resource_record_equal(const DnsResourceRecord *a, const DnsResourceRecord *b);
169 int dns_resource_record_to_string(const DnsResourceRecord *rr, char **ret);
170 DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceRecord*, dns_resource_record_unref);
172 const char *dns_class_to_string(uint16_t type);
173 int dns_class_from_string(const char *name, uint16_t *class);
175 extern const struct hash_ops dns_resource_key_hash_ops;