-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
+/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
DNS_SERVER_FALLBACK,
DNS_SERVER_LINK,
} DnsServerType;
+#define _DNS_SERVER_TYPE_MAX (DNS_SERVER_LINK + 1)
+
+const char* dns_server_type_to_string(DnsServerType i) _const_;
+DnsServerType dns_server_type_from_string(const char *s) _pure_;
typedef enum DnsServerFeatureLevel {
DNS_SERVER_FEATURE_LEVEL_TCP,
int family;
union in_addr_union address;
+ int ifindex; /* for IPv6 link-local DNS servers */
- bool marked:1;
+ char *server_string;
usec_t resend_timeout;
usec_t max_rtt;
- DnsServerFeatureLevel verified_features;
- DnsServerFeatureLevel possible_features;
+ DnsServerFeatureLevel verified_feature_level;
+ DnsServerFeatureLevel possible_feature_level;
+
size_t received_udp_packet_max;
- unsigned n_failed_attempts;
+
+ unsigned n_failed_udp;
+ unsigned n_failed_tcp;
+
+ bool packet_truncated:1;
+ bool packet_bad_opt:1;
+ bool packet_rrsig_missing:1;
+
usec_t verified_usec;
usec_t features_grace_period_usec;
+ /* Whether we already warned about downgrading to non-DNSSEC mode for this server */
+ bool warned_downgrade:1;
+
+ /* Used when GC'ing old DNS servers when configuration changes. */
+ bool marked:1;
+
/* If linked is set, then this server appears in the servers linked list */
bool linked:1;
LIST_FIELDS(DnsServer, servers);
DnsServerType type,
Link *link,
int family,
- const union in_addr_union *address);
+ const union in_addr_union *address,
+ int ifindex);
DnsServer* dns_server_ref(DnsServer *s);
DnsServer* dns_server_unref(DnsServer *s);
void dns_server_unlink(DnsServer *s);
void dns_server_move_back_and_unmark(DnsServer *s);
-void dns_server_packet_received(DnsServer *s, DnsServerFeatureLevel features, usec_t rtt, size_t size);
-void dns_server_packet_lost(DnsServer *s, DnsServerFeatureLevel features, usec_t usec);
-void dns_server_packet_failed(DnsServer *s, DnsServerFeatureLevel features);
+void dns_server_packet_received(DnsServer *s, int protocol, DnsServerFeatureLevel level, usec_t rtt, size_t size);
+void dns_server_packet_lost(DnsServer *s, int protocol, DnsServerFeatureLevel level, usec_t usec);
+void dns_server_packet_truncated(DnsServer *s, DnsServerFeatureLevel level);
+void dns_server_packet_rrsig_missing(DnsServer *s, DnsServerFeatureLevel level);
+void dns_server_packet_bad_opt(DnsServer *s, DnsServerFeatureLevel level);
+void dns_server_packet_rcode_downgrade(DnsServer *s, DnsServerFeatureLevel level);
+
+DnsServerFeatureLevel dns_server_possible_feature_level(DnsServer *s);
-DnsServer *dns_server_find(DnsServer *first, int family, const union in_addr_union *in_addr);
+int dns_server_adjust_opt(DnsServer *server, DnsPacket *packet, DnsServerFeatureLevel level);
+
+const char *dns_server_string(DnsServer *server);
+int dns_server_ifindex(const DnsServer *s);
+
+bool dns_server_dnssec_supported(DnsServer *server);
+
+void dns_server_warn_downgrade(DnsServer *server);
+
+bool dns_server_limited_domains(DnsServer *server);
+
+DnsServer *dns_server_find(DnsServer *first, int family, const union in_addr_union *in_addr, int ifindex);
void dns_server_unlink_all(DnsServer *first);
void dns_server_unlink_marked(DnsServer *first);
DnsServer *manager_get_dns_server(Manager *m);
void manager_next_dns_server(Manager *m);
-DEFINE_TRIVIAL_CLEANUP_FUNC(DnsServer*, dns_server_unref);
+bool dns_server_address_valid(int family, const union in_addr_union *sa);
-DnsServerFeatureLevel dns_server_possible_features(DnsServer *s);
+DnssecMode dns_server_get_dnssec_mode(DnsServer *s);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(DnsServer*, dns_server_unref);
extern const struct hash_ops dns_server_hash_ops;
+
+void dns_server_flush_cache(DnsServer *s);
+
+void dns_server_reset_features(DnsServer *s);
+void dns_server_reset_features_all(DnsServer *s);
+
+void dns_server_dump(DnsServer *s, FILE *f);