-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <sd-messages.h>
+
#include "alloc-util.h"
#include "resolved-dns-server.h"
#include "resolved-resolv-conf.h"
return true;
}
+void dns_server_warn_downgrade(DnsServer *server) {
+ assert(server);
+
+ if (server->warned_downgrade)
+ return;
+
+ log_struct(LOG_NOTICE,
+ LOG_MESSAGE_ID(SD_MESSAGE_DNSSEC_DOWNGRADE),
+ LOG_MESSAGE("Server %s does not support DNSSEC, downgrading to non-DNSSEC mode.", dns_server_string(server)),
+ "DNS_SERVER=%s", dns_server_string(server),
+ "DNS_SERVER_FEATURE_LEVEL=%s", dns_server_feature_level_to_string(server->possible_feature_level),
+ NULL);
+
+ server->warned_downgrade = true;
+}
+
static void dns_server_hash_func(const void *p, struct siphash *state) {
const DnsServer *s = p;
return s;
if (s)
- log_info("Switching to system DNS server %s.", dns_server_string(s));
+ log_info("Switching to %s DNS server %s.",
+ dns_server_type_to_string(s->type),
+ dns_server_string(s));
dns_server_unref(m->current_dns_server);
m->current_dns_server = dns_server_ref(s);
/* Try to read updates resolv.conf */
manager_read_resolv_conf(m);
- /* If no DNS server was chose so far, pick the first one */
+ /* If no DNS server was chosen so far, pick the first one */
if (!m->current_dns_server)
manager_set_dns_server(m, m->dns_servers);
manager_set_dns_server(m, m->dns_servers);
}
+static const char* const dns_server_type_table[_DNS_SERVER_TYPE_MAX] = {
+ [DNS_SERVER_SYSTEM] = "system",
+ [DNS_SERVER_FALLBACK] = "fallback",
+ [DNS_SERVER_LINK] = "link",
+};
+DEFINE_STRING_TABLE_LOOKUP(dns_server_type, DnsServerType);
+
static const char* const dns_server_feature_level_table[_DNS_SERVER_FEATURE_LEVEL_MAX] = {
[DNS_SERVER_FEATURE_LEVEL_TCP] = "TCP",
[DNS_SERVER_FEATURE_LEVEL_UDP] = "UDP",