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

Several follow-ups for #8849
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2018-06-13 08:46:07 +02:00 committed by GitHub
commit 6f534ceb95
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10 changed files with 41 additions and 11 deletions

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@ -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>

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@ -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

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@ -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

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@ -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),

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@ -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) {

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@ -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);

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@ -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:

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@ -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) {

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@ -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);