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-rw-r--r--src/nspawn/nspawn.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 1fc0501c2e..bce26a383b 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -1321,17 +1321,32 @@ static int setup_timezone(const char *dest) {
return 0;
}
-static int resolved_running(void) {
+static int resolved_listening(void) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+ _cleanup_free_ char *dns_stub_listener_mode = NULL;
int r;
- /* Check if resolved is running */
+ /* Check if resolved is listening */
r = sd_bus_open_system(&bus);
if (r < 0)
return r;
- return bus_name_has_owner(bus, "org.freedesktop.resolve1", NULL);
+ r = bus_name_has_owner(bus, "org.freedesktop.resolve1", NULL);
+ if (r <= 0)
+ return r;
+
+ r = sd_bus_get_property_string(bus,
+ "org.freedesktop.resolve1",
+ "/org/freedesktop/resolve1",
+ "org.freedesktop.resolve1.Manager",
+ "DNSStubListener",
+ NULL,
+ &dns_stub_listener_mode);
+ if (r < 0)
+ return r;
+
+ return STR_IN_SET(dns_stub_listener_mode, "udp", "yes");
}
static int setup_resolv_conf(const char *dest) {
@@ -1358,7 +1373,7 @@ static int setup_resolv_conf(const char *dest) {
}
if (access("/usr/lib/systemd/resolv.conf", F_OK) >= 0 &&
- resolved_running() > 0) {
+ resolved_listening() > 0) {
/* resolved is enabled on the host. In this, case bind mount its static resolv.conf file into the
* container, so that the container can use the host's resolver. Given that network namespacing is