diff --git a/src/core/devices/nm-device.c b/src/core/devices/nm-device.c index 6fc39c858a..8df5db51ae 100644 --- a/src/core/devices/nm-device.c +++ b/src/core/devices/nm-device.c @@ -17892,6 +17892,13 @@ nm_device_get_hostname_from_dns_lookup(NMDevice *self, int addr_family, gboolean /* If the device is not supposed to have addresses, * return an immediate empty result.*/ if (!nm_device_get_applied_connection(self)) { + nm_clear_pointer(&priv->hostname_resolver_x[IS_IPv4], _hostname_resolver_free); + NM_SET_OUT(out_wait, FALSE); + return NULL; + } + + if (!priv->carrier) { + nm_clear_pointer(&priv->hostname_resolver_x[IS_IPv4], _hostname_resolver_free); NM_SET_OUT(out_wait, FALSE); return NULL; } diff --git a/src/core/nm-policy.c b/src/core/nm-policy.c index e147e5047c..d79723eebe 100644 --- a/src/core/nm-policy.c +++ b/src/core/nm-policy.c @@ -793,6 +793,20 @@ device_dns_lookup_done(NMDevice *device, gpointer user_data) update_system_hostname(self, "lookup finished"); } +static void +device_carrier_changed(NMDevice *device, GParamSpec *pspec, gpointer user_data) +{ + NMPolicyPrivate *priv = user_data; + NMPolicy * self = _PRIV_TO_SELF(priv); + gs_free char * msg = NULL; + + if (nm_device_has_carrier(device)) { + g_signal_handlers_disconnect_by_func(device, device_carrier_changed, priv); + msg = g_strdup_printf("device '%s' got carrier", nm_device_get_iface(device)); + update_system_hostname(self, msg); + } +} + static void update_system_hostname(NMPolicy *self, const char *msg) { @@ -877,6 +891,7 @@ update_system_hostname(NMPolicy *self, const char *msg) info = &g_array_index(infos, DeviceHostnameInfo, i); addr_family = info->IS_IPv4 ? AF_INET : AF_INET6; g_signal_handlers_disconnect_by_func(info->device, device_dns_lookup_done, self); + g_signal_handlers_disconnect_by_func(info->device, device_carrier_changed, priv); if (info->from_dhcp) { dhcp_config = nm_device_get_dhcp_config(info->device, addr_family); @@ -902,10 +917,18 @@ update_system_hostname(NMPolicy *self, const char *msg) if (priv->hostname_mode != NM_POLICY_HOSTNAME_MODE_DHCP) { if (info->from_dns) { - const char *result; - gboolean wait = FALSE; + const char *result = NULL; + gboolean wait = FALSE; - result = nm_device_get_hostname_from_dns_lookup(info->device, addr_family, &wait); + if (nm_device_has_carrier(info->device)) { + result = + nm_device_get_hostname_from_dns_lookup(info->device, addr_family, &wait); + } else { + g_signal_connect(info->device, + "notify::" NM_DEVICE_CARRIER, + G_CALLBACK(device_carrier_changed), + priv); + } if (result) { _set_hostname(self, result, "from address lookup"); return;