Merge pull request #9280 from yuwata/follow-ups-8849

Several follow-ups for #8849

man/resolvectl.xml

@@ -283,7 +283,7 @@
         <listitem><para>Revert the per-interface DNS configuration. If the DNS configuration is reverted all
         per-interface DNS setting are reset to their defaults, undoing all effects of <option>dns</option>,
         <option>domain</option>, <option>llmnr</option>, <option>mdns</option>, <option>dnssec</option>,
-        <option>privatedns</option>, <option>nta=</option>. Note that when a network interface disappears all
+        <option>privatedns</option>, <option>nta</option>. Note that when a network interface disappears all
         configuration is lost automatically, an explicit reverting is not necessary in that case.</para></listitem>
       </varlistentry>
 

shell-completion/bash/resolvectl

@@ -48,12 +48,14 @@ _resolvectl() {
                      [LINK]='revert dns domain nta'
                   [RESOLVE]='llmnr mdns'
                    [DNSSEC]='dnssec'
+               [PRIVATEDNS]='privatedns'
                [STANDALONE]='statistics reset-statistics flush-caches reset-server-features'
         )
         local -A ARGS=(
                    [FAMILY]='tcp udp sctp'
                   [RESOLVE]='yes no resolve'
                    [DNSSEC]='yes no allow-downgrade'
+               [PRIVATEDNS]='no opportunistic'
         )
         local interfaces=$( __get_interfaces )
 
@@ -109,7 +111,7 @@ _resolvectl() {
                         comps=""
                 fi
 
-        elif __contains_word "$verb" ${VERBS[LINK]} ${VERBS[RESOLVE]} ${VERBS[DNSSEC]}; then
+        elif __contains_word "$verb" ${VERBS[LINK]} ${VERBS[RESOLVE]} ${VERBS[DNSSEC]} ${VERBS[PRIVATEDNS]}; then
                 for ((i++; i < COMP_CWORD; i++)); do
                         if __contains_word "${COMP_WORDS[i]}" $interfaces &&
                          ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
@@ -153,6 +155,22 @@ _resolvectl() {
                                 comps=''
                         fi
 
+                elif __contains_word "$verb" ${VERBS[PRIVATEDNS]}; then
+                        name=
+                        for ((i++; i < COMP_CWORD; i++)); do
+                                if __contains_word "${COMP_WORDS[i]}" ${ARGS[PRIVATEDNS]} &&
+                                 ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
+                                        name=${COMP_WORDS[i]}
+                                        break;
+                                fi
+                        done
+
+                        if [[ -z $name ]]; then
+                                comps=${ARGS[PRIVATEDNS]}
+                        else
+                                comps=''
+                        fi
+
                 else
                         comps=''
                 fi

shell-completion/bash/systemd-resolve

@@ -65,6 +65,9 @@ _systemd-resolve() {
                         --set-dnssec)
                                 comps="yes no allow-downgrade"
                                 ;;
+                        --set-privatedns)
+                                comps="no opportunistic"
+                                ;;
                 esac
                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
                 return 0

src/resolve/resolved-bus.c

@@ -1471,6 +1471,7 @@ static int bus_property_get_ntas(
 static BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_dns_stub_listener_mode, dns_stub_listener_mode, DnsStubListenerMode);
 static BUS_DEFINE_PROPERTY_GET(bus_property_get_dnssec_supported, "b", Manager, manager_dnssec_supported);
 static BUS_DEFINE_PROPERTY_GET2(bus_property_get_dnssec_mode, "s", Manager, manager_get_dnssec_mode, dnssec_mode_to_string);
+static BUS_DEFINE_PROPERTY_GET2(bus_property_get_private_dns_mode, "s", Manager, manager_get_private_dns_mode, private_dns_mode_to_string);
 
 static int bus_method_reset_statistics(sd_bus_message *message, void *userdata, sd_bus_error *error) {
         Manager *m = userdata;
@@ -1541,6 +1542,10 @@ static int bus_method_set_link_mdns(sd_bus_message *message, void *userdata, sd_
         return call_link_method(userdata, message, bus_link_method_set_mdns, error);
 }
 
+static int bus_method_set_link_private_dns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+        return call_link_method(userdata, message, bus_link_method_set_private_dns, error);
+}
+
 static int bus_method_set_link_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error) {
         return call_link_method(userdata, message, bus_link_method_set_dnssec, error);
 }
@@ -1831,6 +1836,7 @@ static const sd_bus_vtable resolve_vtable[] = {
         SD_BUS_PROPERTY("LLMNRHostname", "s", NULL, offsetof(Manager, llmnr_hostname), 0),
         SD_BUS_PROPERTY("LLMNR", "s", bus_property_get_resolve_support, offsetof(Manager, llmnr_support), 0),
         SD_BUS_PROPERTY("MulticastDNS", "s", bus_property_get_resolve_support, offsetof(Manager, mdns_support), 0),
+        SD_BUS_PROPERTY("PrivateDNS", "s", bus_property_get_private_dns_mode, 0, 0),
         SD_BUS_PROPERTY("DNS", "a(iiay)", bus_property_get_dns_servers, 0, 0),
         SD_BUS_PROPERTY("FallbackDNS", "a(iiay)", bus_property_get_fallback_dns_servers, offsetof(Manager, fallback_dns_servers), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("CurrentDNSServer", "(iiay)", bus_property_get_current_dns_server, offsetof(Manager, current_dns_server), 0),
@@ -1855,6 +1861,7 @@ static const sd_bus_vtable resolve_vtable[] = {
         SD_BUS_METHOD("SetLinkDomains", "ia(sb)", NULL, bus_method_set_link_domains, 0),
         SD_BUS_METHOD("SetLinkLLMNR", "is", NULL, bus_method_set_link_llmnr, 0),
         SD_BUS_METHOD("SetLinkMulticastDNS", "is", NULL, bus_method_set_link_mdns, 0),
+        SD_BUS_METHOD("SetLinkPrivateDNS", "is", NULL, bus_method_set_link_private_dns, 0),
         SD_BUS_METHOD("SetLinkDNSSEC", "is", NULL, bus_method_set_link_dnssec, 0),
         SD_BUS_METHOD("SetLinkDNSSECNegativeTrustAnchors", "ias", NULL, bus_method_set_link_dnssec_negative_trust_anchors, 0),
         SD_BUS_METHOD("RevertLink", "i", NULL, bus_method_revert_link, 0),

src/resolve/resolved-dns-server.c

@@ -302,7 +302,7 @@ void dns_server_packet_received(DnsServer *s, int protocol, DnsServerFeatureLeve
                 s->received_udp_packet_max = size;
 }
 
-void dns_server_packet_lost(DnsServer *s, int protocol, DnsServerFeatureLevel level, usec_t usec) {
+void dns_server_packet_lost(DnsServer *s, int protocol, DnsServerFeatureLevel level) {
         assert(s);
         assert(s->manager);
 
@@ -446,7 +446,7 @@ DnsServerFeatureLevel dns_server_possible_feature_level(DnsServer *s) {
                         /* We tried to connect using DNS-over-TLS, and it didn't work. Downgrade to plaintext UDP
                          * if we don't require DNS-over-TLS */
 
-                        log_debug("Server doesn't support seem to support DNS-over-TLS, downgrading protocol...");
+                        log_debug("Server doesn't support DNS-over-TLS, downgrading protocol...");
                         s->possible_feature_level--;
                 } else if (s->packet_bad_opt &&
                            s->possible_feature_level >= DNS_SERVER_FEATURE_LEVEL_EDNS0) {

src/resolve/resolved-dns-server.h

@@ -110,7 +110,7 @@ void dns_server_unlink(DnsServer *s);
 void dns_server_move_back_and_unmark(DnsServer *s);
 
 void dns_server_packet_received(DnsServer *s, int protocol, DnsServerFeatureLevel level, size_t size);
-void dns_server_packet_lost(DnsServer *s, int protocol, DnsServerFeatureLevel level, usec_t usec);
+void dns_server_packet_lost(DnsServer *s, int protocol, DnsServerFeatureLevel level);
 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);

src/resolve/resolved-dns-transaction.c

@@ -467,9 +467,11 @@ static void on_transaction_stream_error(DnsTransaction *t, int error) {
                         /* If the LLMNR/TCP connection failed, the host doesn't support LLMNR, and we cannot answer the
                          * question on this scope. */
                         dns_transaction_complete(t, DNS_TRANSACTION_NOT_FOUND);
+                        return;
                 }
 
                 dns_transaction_retry(t, true);
+                return;
         }
         if (error != 0) {
                 t->answer_errno = error;
@@ -536,7 +538,7 @@ static int on_stream_complete(DnsStream *s, int error) {
                 if (s->transactions) {
                         t = s->transactions;
                         assert_se(sd_event_now(t->scope->manager->event, clock_boottime_or_monotonic(), &usec) >= 0);
-                        dns_server_packet_lost(t->server, IPPROTO_UDP, t->current_feature_level, usec - t->start_usec);
+                        dns_server_packet_lost(t->server, IPPROTO_TCP, t->current_feature_level);
                 }
         }
 
@@ -1229,7 +1231,7 @@ static int on_dns_packet(sd_event_source *s, int fd, uint32_t revents, void *use
 
                 log_debug_errno(r, "Connection failure for DNS UDP packet: %m");
                 assert_se(sd_event_now(t->scope->manager->event, clock_boottime_or_monotonic(), &usec) >= 0);
-                dns_server_packet_lost(t->server, IPPROTO_UDP, t->current_feature_level, usec - t->start_usec);
+                dns_server_packet_lost(t->server, IPPROTO_UDP, t->current_feature_level);
 
                 dns_transaction_retry(t, true);
                 return 0;
@@ -1322,7 +1324,7 @@ static int on_transaction_timeout(sd_event_source *s, usec_t usec, void *userdat
 
                 case DNS_PROTOCOL_DNS:
                         assert(t->server);
-                        dns_server_packet_lost(t->server, t->stream ? IPPROTO_TCP : IPPROTO_UDP, t->current_feature_level, usec - t->start_usec);
+                        dns_server_packet_lost(t->server, t->stream ? IPPROTO_TCP : IPPROTO_UDP, t->current_feature_level);
                         break;
 
                 case DNS_PROTOCOL_LLMNR:

src/resolve/resolved-manager.c

@@ -1391,7 +1391,7 @@ PrivateDnsMode manager_get_private_dns_mode(Manager *m) {
         if (m->private_dns_mode != _PRIVATE_DNS_MODE_INVALID)
                 return m->private_dns_mode;
 
-        return _PRIVATE_DNS_MODE_INVALID;
+        return PRIVATE_DNS_NO;
 }
 
 void manager_dnssec_verdict(Manager *m, DnssecVerdict verdict, const DnsResourceKey *key) {

src/shared/resolve-util.c

@@ -31,4 +31,4 @@ static const char* const private_dns_mode_table[_PRIVATE_DNS_MODE_MAX] = {
         [PRIVATE_DNS_NO] = "no",
         [PRIVATE_DNS_OPPORTUNISTIC] = "opportunistic",
 };
-DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(private_dns_mode, PrivateDnsMode, PRIVATE_DNS_OPPORTUNISTIC);
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(private_dns_mode, PrivateDnsMode, _PRIVATE_DNS_MODE_INVALID);