+/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
-/***
- This file is part of systemd.
-
- Copyright 2014 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
- ***/
-
#include <netinet/in.h>
#include "bitmap.h"
#include "hashmap.h"
#include "in-addr-util.h"
#include "list.h"
+#include "string-util.h"
+#include "time-util.h"
typedef struct DnsResourceKey DnsResourceKey;
typedef struct DnsResourceRecord DnsResourceRecord;
DNSSEC_ALGORITHM_ECC_GOST = 12, /* RFC 5933 */
DNSSEC_ALGORITHM_ECDSAP256SHA256 = 13, /* RFC 6605 */
DNSSEC_ALGORITHM_ECDSAP384SHA384 = 14, /* RFC 6605 */
+ DNSSEC_ALGORITHM_ED25519 = 15, /* RFC 8080 */
+ DNSSEC_ALGORITHM_ED448 = 16, /* RFC 8080 */
DNSSEC_ALGORITHM_INDIRECT = 252,
DNSSEC_ALGORITHM_PRIVATEDNS,
DNSSEC_ALGORITHM_PRIVATEOID,
struct DnsResourceKey {
unsigned n_ref; /* (unsigned -1) for const keys, see below */
uint16_t class, type;
- char *_name; /* don't access directy, use DNS_RESOURCE_KEY_NAME()! */
+ char *_name; /* don't access directly, use dns_resource_key_name()! */
};
/* Creates a temporary resource key. This is only useful to quickly
._name = (char*) n, \
})
-
struct DnsTxtItem {
size_t length;
LIST_FIELDS(DnsTxtItem, items);
/* How many labels to strip to determine "synthesizing source" of this RR, i.e. the wildcard's immediate parent. -1 if not signed. */
unsigned n_skip_labels_source;
- bool unparseable:1;
+ bool unparsable:1;
bool wire_format_canonical:1;
void *wire_format;
};
};
-static inline const char* DNS_RESOURCE_KEY_NAME(const DnsResourceKey *key) {
- if (!key)
- return NULL;
-
- if (key->_name)
- return key->_name;
-
- return (char*) key + sizeof(DnsResourceKey);
-}
-
-static inline const void* DNS_RESOURCE_RECORD_RDATA(DnsResourceRecord *rr) {
+static inline const void* DNS_RESOURCE_RECORD_RDATA(const DnsResourceRecord *rr) {
if (!rr)
return NULL;
return (uint8_t*) rr->wire_format + rr->wire_format_rdata_offset;
}
-static inline size_t DNS_RESOURCE_RECORD_RDATA_SIZE(DnsResourceRecord *rr) {
+static inline size_t DNS_RESOURCE_RECORD_RDATA_SIZE(const DnsResourceRecord *rr) {
if (!rr)
return 0;
if (!rr->wire_format)
return rr->wire_format_size - rr->wire_format_rdata_offset;
}
+static inline uint8_t DNS_RESOURCE_RECORD_OPT_VERSION_SUPPORTED(const DnsResourceRecord *rr) {
+ assert(rr);
+ assert(rr->key->type == DNS_TYPE_OPT);
+
+ return ((rr->ttl >> 16) & 0xFF) == 0;
+}
+
DnsResourceKey* dns_resource_key_new(uint16_t class, uint16_t type, const char *name);
DnsResourceKey* dns_resource_key_new_redirect(const DnsResourceKey *key, const DnsResourceRecord *cname);
int dns_resource_key_new_append_suffix(DnsResourceKey **ret, DnsResourceKey *key, char *name);
DnsResourceKey* dns_resource_key_new_consume(uint16_t class, uint16_t type, char *name);
DnsResourceKey* dns_resource_key_ref(DnsResourceKey *key);
DnsResourceKey* dns_resource_key_unref(DnsResourceKey *key);
+const char* dns_resource_key_name(const DnsResourceKey *key);
bool dns_resource_key_is_address(const DnsResourceKey *key);
+bool dns_resource_key_is_dnssd_ptr(const DnsResourceKey *key);
int dns_resource_key_equal(const DnsResourceKey *a, const DnsResourceKey *b);
int dns_resource_key_match_rr(const DnsResourceKey *key, DnsResourceRecord *rr, const char *search_domain);
int dns_resource_key_match_cname_or_dname(const DnsResourceKey *key, const DnsResourceKey *cname, const char *search_domain);
int dns_resource_key_match_soa(const DnsResourceKey *key, const DnsResourceKey *soa);
-int dns_resource_key_to_string(const DnsResourceKey *key, char **ret);
+
+/* _DNS_{CLASS,TYPE}_STRING_MAX include one byte for NUL, which we use for space instead below.
+ * DNS_HOSTNAME_MAX does not include the NUL byte, so we need to add 1. */
+#define DNS_RESOURCE_KEY_STRING_MAX (_DNS_CLASS_STRING_MAX + _DNS_TYPE_STRING_MAX + DNS_HOSTNAME_MAX + 1)
+
+char* dns_resource_key_to_string(const DnsResourceKey *key, char *buf, size_t buf_size);
+ssize_t dns_resource_record_payload(DnsResourceRecord *rr, void **out);
+
DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceKey*, dns_resource_key_unref);
static inline bool dns_key_is_shared(const DnsResourceKey *key) {
int dns_resource_record_new_reverse(DnsResourceRecord **ret, int family, const union in_addr_union *address, const char *name);
int dns_resource_record_new_address(DnsResourceRecord **ret, int family, const union in_addr_union *address, const char *name);
int dns_resource_record_equal(const DnsResourceRecord *a, const DnsResourceRecord *b);
+int dns_resource_record_payload_equal(const DnsResourceRecord *a, const DnsResourceRecord *b);
+
const char* dns_resource_record_to_string(DnsResourceRecord *rr);
+DnsResourceRecord *dns_resource_record_copy(DnsResourceRecord *rr);
DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceRecord*, dns_resource_record_unref);
int dns_resource_record_to_wire_format(DnsResourceRecord *rr, bool canonical);
int dns_resource_record_is_signer(DnsResourceRecord *rr, const char *zone);
int dns_resource_record_is_synthetic(DnsResourceRecord *rr);
+int dns_resource_record_clamp_ttl(DnsResourceRecord **rr, uint32_t max_ttl);
+
DnsTxtItem *dns_txt_item_free_all(DnsTxtItem *i);
bool dns_txt_item_equal(DnsTxtItem *a, DnsTxtItem *b);
+DnsTxtItem *dns_txt_item_copy(DnsTxtItem *i);
+int dns_txt_item_new_empty(DnsTxtItem **ret);
-void dns_resource_record_hash_func(const void *i, struct siphash *state);
+void dns_resource_record_hash_func(const DnsResourceRecord *i, struct siphash *state);
extern const struct hash_ops dns_resource_key_hash_ops;
extern const struct hash_ops dns_resource_record_hash_ops;
projects / thirdparty / systemd.git / blobdiff