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>
28 #include "in-addr-util.h"
31 typedef struct DnsResourceKey DnsResourceKey
;
32 typedef struct DnsResourceRecord DnsResourceRecord
;
34 /* DNS record classes, see RFC 1035 */
39 _DNS_CLASS_INVALID
= -1
42 struct DnsResourceKey
{
45 char *_name
; /* don't access directy, use DNS_RESOURCE_KEY_NAME()! */
48 struct DnsResourceRecord
{
68 } ptr
, ns
, cname
, dname
;
80 struct in_addr in_addr
;
84 struct in6_addr in6_addr
;
120 /* https://tools.ietf.org/html/rfc4255#section-3.1 */
125 size_t fingerprint_size
;
128 /* http://tools.ietf.org/html/rfc4034#section-2.1 */
130 bool zone_key_flag
:1;
137 /* http://tools.ietf.org/html/rfc4034#section-3.1 */
139 uint16_t type_covered
;
142 uint32_t original_ttl
;
148 size_t signature_size
;
152 char *next_domain_name
;
162 void *next_hashed_name
;
163 size_t next_hashed_name_size
;
169 static inline const char* DNS_RESOURCE_KEY_NAME(const DnsResourceKey
*key
) {
170 if (_unlikely_(!key
))
176 return (char*) key
+ sizeof(DnsResourceKey
);
179 DnsResourceKey
* dns_resource_key_new(uint16_t class, uint16_t type
, const char *name
);
180 DnsResourceKey
* dns_resource_key_new_cname(const DnsResourceKey
*key
);
181 DnsResourceKey
* dns_resource_key_new_redirect(const DnsResourceKey
*key
, const DnsResourceRecord
*cname
);
182 DnsResourceKey
* dns_resource_key_new_consume(uint16_t class, uint16_t type
, char *name
);
183 DnsResourceKey
* dns_resource_key_ref(DnsResourceKey
*key
);
184 DnsResourceKey
* dns_resource_key_unref(DnsResourceKey
*key
);
185 int dns_resource_key_equal(const DnsResourceKey
*a
, const DnsResourceKey
*b
);
186 int dns_resource_key_match_rr(const DnsResourceKey
*key
, const DnsResourceRecord
*rr
);
187 int dns_resource_key_match_cname(const DnsResourceKey
*key
, const DnsResourceRecord
*rr
);
188 int dns_resource_key_to_string(const DnsResourceKey
*key
, char **ret
);
189 DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceKey
*, dns_resource_key_unref
);
191 DnsResourceRecord
* dns_resource_record_new(DnsResourceKey
*key
);
192 DnsResourceRecord
* dns_resource_record_new_full(uint16_t class, uint16_t type
, const char *name
);
193 DnsResourceRecord
* dns_resource_record_ref(DnsResourceRecord
*rr
);
194 DnsResourceRecord
* dns_resource_record_unref(DnsResourceRecord
*rr
);
195 int dns_resource_record_new_reverse(DnsResourceRecord
**ret
, int family
, const union in_addr_union
*address
, const char *name
);
196 int dns_resource_record_new_address(DnsResourceRecord
**ret
, int family
, const union in_addr_union
*address
, const char *name
);
197 int dns_resource_record_equal(const DnsResourceRecord
*a
, const DnsResourceRecord
*b
);
198 int dns_resource_record_to_string(const DnsResourceRecord
*rr
, char **ret
);
199 DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceRecord
*, dns_resource_record_unref
);
201 const char *dns_class_to_string(uint16_t type
);
202 int dns_class_from_string(const char *name
, uint16_t *class);
204 extern const struct hash_ops dns_resource_key_hash_ops
;