Send ssdp requests to ipv4 broadcast as well (#52760)

* Send ssdp requests to 255.255.255.255 as well

- This matches pysonos behavior and may fix reports of
  inability to discover some sonos devices
  https://github.com/amelchio/pysonos/blob/master/pysonos/discovery.py#L120

* Update homeassistant/components/ssdp/__init__.py

homeassistant/components/ssdp/__init__.py

@@ -29,6 +29,8 @@ from .flow import FlowDispatcher, SSDPFlow
 DOMAIN = "ssdp"
 SCAN_INTERVAL = timedelta(seconds=60)
 
+IPV4_BROADCAST = IPv4Address("255.255.255.255")
+
 # Attributes for accessing info from SSDP response
 ATTR_SSDP_LOCATION = "ssdp_location"
 ATTR_SSDP_ST = "ssdp_st"
@@ -236,7 +238,20 @@ class Scanner:
                     async_callback=self._async_process_entry, source_ip=source_ip
                 )
             )
-
+            try:
+                IPv4Address(source_ip)
+            except ValueError:
+                continue
+            # Some sonos devices only seem to respond if we send to the broadcast
+            # address. This matches pysonos' behavior
+            # https://github.com/amelchio/pysonos/blob/d4329b4abb657d106394ae69357805269708c996/pysonos/discovery.py#L120
+            self._ssdp_listeners.append(
+                SSDPListener(
+                    async_callback=self._async_process_entry,
+                    source_ip=source_ip,
+                    target_ip=IPV4_BROADCAST,
+                )
+            )
         self.hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, self.async_stop)
         self.hass.bus.async_listen_once(
             EVENT_HOMEASSISTANT_STARTED, self.flow_dispatcher.async_start

tests/components/ssdp/test_init.py

@@ -295,15 +295,15 @@ async def test_start_stop_scanner(async_start_mock, async_search_mock, hass):
     await hass.async_block_till_done()
     async_fire_time_changed(hass, dt_util.utcnow() + timedelta(seconds=200))
     await hass.async_block_till_done()
-    assert async_start_mock.call_count == 1
-    assert async_search_mock.call_count == 1
+    assert async_start_mock.call_count == 2
+    assert async_search_mock.call_count == 2
 
     hass.bus.async_fire(EVENT_HOMEASSISTANT_STOP)
     await hass.async_block_till_done()
     async_fire_time_changed(hass, dt_util.utcnow() + timedelta(seconds=200))
     await hass.async_block_till_done()
-    assert async_start_mock.call_count == 1
-    assert async_search_mock.call_count == 1
+    assert async_start_mock.call_count == 2
+    assert async_search_mock.call_count == 2
 
 
 async def test_unexpected_exception_while_fetching(hass, aioclient_mock, caplog):
@@ -459,11 +459,11 @@ async def test_scan_with_registered_callback(hass, aioclient_mock, caplog):
         await hass.async_block_till_done()
         assert hass.state == CoreState.running
 
-    assert len(integration_callbacks) == 3
-    assert len(integration_callbacks_from_cache) == 3
-    assert len(integration_match_all_callbacks) == 3
+    assert len(integration_callbacks) == 5
+    assert len(integration_callbacks_from_cache) == 5
+    assert len(integration_match_all_callbacks) == 5
     assert len(integration_match_all_not_present_callbacks) == 0
-    assert len(match_any_callbacks) == 3
+    assert len(match_any_callbacks) == 5
     assert len(not_matching_integration_callbacks) == 0
     assert integration_callbacks[0] == {
         ssdp.ATTR_UPNP_DEVICE_TYPE: "Paulus",
@@ -546,7 +546,7 @@ async def test_unsolicited_ssdp_registered_callback(hass, aioclient_mock, caplog
         assert hass.state == CoreState.running
 
     assert (
-        len(integration_callbacks) == 2
+        len(integration_callbacks) == 4
     )  # unsolicited callbacks without st are not cached
     assert integration_callbacks[0] == {
         "UDN": "uuid:RINCON_1111BB963FD801400",
@@ -635,7 +635,7 @@ async def test_scan_second_hit(hass, aioclient_mock, caplog):
         async_fire_time_changed(hass, dt_util.utcnow() + timedelta(seconds=200))
         await hass.async_block_till_done()
 
-    assert len(integration_callbacks) == 2
+    assert len(integration_callbacks) == 4
     assert integration_callbacks[0] == {
         ssdp.ATTR_UPNP_DEVICE_TYPE: "Paulus",
         ssdp.ATTR_SSDP_EXT: "",
@@ -781,7 +781,12 @@ async def test_async_detect_interfaces_setting_empty_route(hass):
         hass.bus.async_fire(EVENT_HOMEASSISTANT_STARTED)
         await hass.async_block_till_done()
 
-    assert {create_args[0][1]["source_ip"], create_args[1][1]["source_ip"]} == {
-        IPv4Address("192.168.1.5"),
-        IPv6Address("2001:db8::"),
+    argset = set()
+    for argmap in create_args:
+        argset.add((argmap[1].get("source_ip"), argmap[1].get("target_ip")))
+
+    assert argset == {
+        (IPv6Address("2001:db8::"), None),
+        (IPv4Address("192.168.1.5"), IPv4Address("255.255.255.255")),
+        (IPv4Address("192.168.1.5"), None),
     }