ip-tunnel: merge branch 'bg/ip-tunnel-cloned-mac-rh1832170'

https://bugzilla.redhat.com/show_bug.cgi?id=1832170
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/503

libnm-core/nm-core-internal.h

@@ -927,4 +927,9 @@ gboolean _nmtst_variant_attribute_spec_assert_sorted (const NMVariantAttributeSp
 const NMVariantAttributeSpec *_nm_variant_attribute_spec_find_binary_search (const NMVariantAttributeSpec *const*array,
                                                                              gsize len,
                                                                              const char *name);
+
+/*****************************************************************************/
+
+gboolean _nm_ip_tunnel_mode_is_layer2 (NMIPTunnelMode mode);
+
 #endif

libnm-core/nm-setting-ip-tunnel.c

@@ -291,6 +291,14 @@ nm_setting_ip_tunnel_get_flags (NMSettingIPTunnel *setting)
 
 /*****************************************************************************/
 
+gboolean
+_nm_ip_tunnel_mode_is_layer2 (NMIPTunnelMode mode)
+{
+	return NM_IN_SET (mode,
+	                  NM_IP_TUNNEL_MODE_GRETAP,
+	                  NM_IP_TUNNEL_MODE_IP6GRETAP);
+}
+
 static gboolean
 verify (NMSetting *setting, NMConnection *connection, GError **error)
 {
@@ -444,9 +452,7 @@ verify (NMSetting *setting, NMConnection *connection, GError **error)
 	}
 
 	if (   nm_connection_get_setting_wired (connection)
-	    && !NM_IN_SET (priv->mode,
-	                   NM_IP_TUNNEL_MODE_GRETAP,
-	                   NM_IP_TUNNEL_MODE_IP6GRETAP)) {
+	    && !_nm_ip_tunnel_mode_is_layer2 (priv->mode)) {
 		g_set_error (error,
 		             NM_CONNECTION_ERROR,
 		             NM_CONNECTION_ERROR_INVALID_PROPERTY,

src/devices/nm-device-ip-tunnel.c

@@ -667,7 +667,8 @@ create_and_realize (NMDevice *device,
 
 	mode = nm_setting_ip_tunnel_get_mode (s_ip_tunnel);
 
-	if (   nm_device_hw_addr_get_cloned (device,
+	if (   _nm_ip_tunnel_mode_is_layer2 (mode)
+	    && nm_device_hw_addr_get_cloned (device,
 	                                     connection,
 	                                     FALSE,
 	                                     &hwaddr,
@@ -686,13 +687,6 @@ create_and_realize (NMDevice *device,
 			g_return_val_if_reached (FALSE);
 		}
 
-		if (NM_IN_SET (mode, NM_IP_TUNNEL_MODE_GRE)) {
-			g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_FAILED,
-			             "Invalid hardware address '%s' for tunnel type",
-			             hwaddr);
-			return FALSE;
-		}
-
 		mac_address_valid = TRUE;
 	}
 
@@ -849,7 +843,10 @@ create_and_realize (NMDevice *device,
 			lnk_ip6tnl.is_tap = (mode == NM_IP_TUNNEL_MODE_IP6GRETAP);
 
 			r = nm_platform_link_ip6gre_add (nm_device_get_platform (device),
-			                                 iface, &lnk_ip6tnl, out_plink);
+			                                 iface,
+			                                 mac_address_valid ? mac_address : NULL,
+			                                 mac_address_valid ? ETH_ALEN : 0,
+			                                 &lnk_ip6tnl, out_plink);
 		} else {
 			lnk_ip6tnl.proto = nm_setting_ip_tunnel_get_mode (s_ip_tunnel) == NM_IP_TUNNEL_MODE_IPIP6
 			                       ? IPPROTO_IPIP
@@ -929,6 +926,23 @@ can_reapply_change (NMDevice *device,
 	                                         error);
 }
 
+static NMActStageReturn
+act_stage1_prepare (NMDevice *device, NMDeviceStateReason *out_failure_reason)
+{
+	NMDeviceIPTunnel *self = NM_DEVICE_IP_TUNNEL (device);
+	NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE (self);
+
+	if (   _nm_ip_tunnel_mode_is_layer2 (priv->mode)
+	    && !nm_device_hw_addr_set_cloned (device,
+	                                      nm_device_get_applied_connection (device),
+	                                      FALSE)) {
+		*out_failure_reason = NM_DEVICE_STATE_REASON_CONFIG_FAILED;
+		return NM_ACT_STAGE_RETURN_FAILURE;
+	}
+
+	return NM_ACT_STAGE_RETURN_SUCCESS;
+}
+
 /*****************************************************************************/
 
 static void
@@ -1078,7 +1092,8 @@ nm_device_ip_tunnel_class_init (NMDeviceIPTunnelClass *klass)
 	                                                        NM_LINK_TYPE_IPIP,
 	                                                        NM_LINK_TYPE_SIT);
 
-	device_class->act_stage1_prepare_set_hwaddr_ethernet = TRUE;
+
+	device_class->act_stage1_prepare = act_stage1_prepare;
 	device_class->link_changed = link_changed;
 	device_class->can_reapply_change = can_reapply_change;
 	device_class->complete_connection = complete_connection;

src/platform/nm-platform.h

@@ -1511,13 +1511,15 @@ nm_platform_link_ip6tnl_add (NMPlatform *self,
 static inline int
 nm_platform_link_ip6gre_add (NMPlatform *self,
                              const char *name,
+                             const void *address,
+                             size_t address_len,
                              const NMPlatformLnkIp6Tnl *props,
                              const NMPlatformLink **out_link)
 {
 	g_return_val_if_fail (props, -NME_BUG);
 	g_return_val_if_fail (props->is_gre, -NME_BUG);
 
-	return nm_platform_link_add (self, props->is_tap ? NM_LINK_TYPE_IP6GRETAP : NM_LINK_TYPE_IP6GRE, name, 0, NULL, 0, props, out_link);
+	return nm_platform_link_add (self, props->is_tap ? NM_LINK_TYPE_IP6GRETAP : NM_LINK_TYPE_IP6GRE, name, 0, address, address_len, props, out_link);
 }
 
 static inline int

src/platform/tests/test-common.c

@@ -1380,7 +1380,7 @@ nmtstp_link_ip6gre_add (NMPlatform *platform,
 			                                      100);
 		}
 	} else
-		success = NMTST_NM_ERR_SUCCESS (nm_platform_link_ip6gre_add (platform, name, lnk, &pllink));
+		success = NMTST_NM_ERR_SUCCESS (nm_platform_link_ip6gre_add (platform, name, NULL, 0, lnk, &pllink));
 
 	_assert_pllink (platform, success, pllink, name, lnk->is_tap ? NM_LINK_TYPE_IP6GRETAP : NM_LINK_TYPE_IP6GRE);