proxy: cleanup handling of proxy-method

The numeric value of NM_SETTING_PROXY_METHOD_NONE should be zero,
as that is the more natural default.

Also, cast all uses of the enum values in g_object_set() to
(int).

clients/cli/devices.c

@@ -3482,7 +3482,7 @@ do_device_wifi_hotspot (NmCli *nmc, int argc, char **argv)
 
 	s_proxy = (NMSettingProxy *) nm_setting_proxy_new ();
 	nm_connection_add_setting (connection, NM_SETTING (s_proxy));
-	g_object_set (s_proxy, NM_SETTING_PROXY_METHOD, NM_SETTING_PROXY_METHOD_NONE, NULL);
+	g_object_set (s_proxy, NM_SETTING_PROXY_METHOD, (int) NM_SETTING_PROXY_METHOD_NONE, NULL);
 
 	/* Activate the connection now */
 	nmc->nowait_flag = (nmc->timeout == 0);

clients/cli/settings.c

@@ -2133,18 +2133,18 @@ static gboolean
 nmc_property_proxy_set_method (NMSetting *setting, const char *prop,
                                const char *val, GError **error)
 {
-	NMSettingProxyMethod method;
+	int method;
 	gboolean ret;
 
 	ret = nm_utils_enum_from_str (nm_setting_proxy_method_get_type(), val,
-	                               (int *) &method, NULL);
+	                              &method, NULL);
 
 	if (!ret) {
 		gs_free const char **values = NULL;
 		gs_free char *values_str = NULL;
 
 		values = nm_utils_enum_get_values (nm_setting_proxy_method_get_type (),
-		                                   NM_SETTING_PROXY_METHOD_AUTO,
+		                                   NM_SETTING_PROXY_METHOD_NONE,
 		                                   G_MAXINT);
 		values_str = g_strjoinv (",", (char **) values);
 		g_set_error (error, 1, 0, _("invalid method '%s', use one of %s"),
@@ -2559,7 +2559,7 @@ nmc_setting_custom_init (NMSetting *setting)
 		              NULL);
 	} else if (NM_IS_SETTING_PROXY (setting)) {
 		g_object_set (NM_SETTING_PROXY (setting),
-		              NM_SETTING_PROXY_METHOD, NM_SETTING_PROXY_METHOD_NONE,
+		              NM_SETTING_PROXY_METHOD, (int) NM_SETTING_PROXY_METHOD_NONE,
 		              NULL);
 	} else if (NM_IS_SETTING_TUN (setting)) {
 		g_object_set (NM_SETTING_TUN (setting),

libnm-core/nm-setting-proxy.c

@@ -153,7 +153,19 @@ verify (NMSetting *setting, NMConnection *connection, GError **error)
 	NMSettingProxyMethod method;
 
 	method = priv->method;
-	if (method == NM_SETTING_PROXY_METHOD_NONE) {
+
+	if (!NM_IN_SET (method,
+	                NM_SETTING_PROXY_METHOD_NONE,
+	                NM_SETTING_PROXY_METHOD_AUTO)) {
+		g_set_error (error,
+		             NM_CONNECTION_ERROR,
+		             NM_CONNECTION_ERROR_INVALID_PROPERTY,
+		             _("invalid proxy method"));
+		g_prefix_error (error, "%s.%s: ", NM_SETTING_PROXY_SETTING_NAME, NM_SETTING_PROXY_PAC_URL);
+		return FALSE;
+	}
+
+	if (method != NM_SETTING_PROXY_METHOD_AUTO) {
 		if (priv->pac_url) {
 			g_set_error (error,
 			             NM_CONNECTION_ERROR,
@@ -188,9 +200,6 @@ verify (NMSetting *setting, NMConnection *connection, GError **error)
 static void
 nm_setting_proxy_init (NMSettingProxy *setting)
 {
-	NMSettingProxyPrivate *priv = NM_SETTING_PROXY_GET_PRIVATE (setting);
-
-	priv->method = NM_SETTING_PROXY_METHOD_NONE;
 }
 
 static void
@@ -207,7 +216,7 @@ finalize (GObject *object)
 
 static void
 get_property (GObject *object, guint prop_id,
-			  GValue *value, GParamSpec *pspec)
+              GValue *value, GParamSpec *pspec)
 {
 	NMSettingProxy *setting = NM_SETTING_PROXY (object);
 

libnm-core/nm-setting-proxy.h

@@ -32,16 +32,16 @@ G_BEGIN_DECLS
 
 /**
  * NMSettingProxyMethod:
- * @NM_SETTING_PROXY_METHOD_AUTO:   DHCP obtained Proxy/ Manual override
+ * @NM_SETTING_PROXY_METHOD_NONE: No Proxy for the Connection
- * @NM_SETTING_PROXY_METHOD_NONE:   No Proxy for the Connection
+ * @NM_SETTING_PROXY_METHOD_AUTO: DHCP obtained Proxy/ Manual override
  *
  * The Proxy method.
  *
  * Since: 1.6
  */
 typedef enum {
-	NM_SETTING_PROXY_METHOD_AUTO = 0,
+	NM_SETTING_PROXY_METHOD_NONE = 0,
-	NM_SETTING_PROXY_METHOD_NONE
+	NM_SETTING_PROXY_METHOD_AUTO = 1,
 } NMSettingProxyMethod;
 
 #define NM_TYPE_SETTING_PROXY            (nm_setting_proxy_get_type ())

src/settings/plugins/ifcfg-rh/reader.c

@@ -922,7 +922,7 @@ make_proxy_setting (shvarFile *ifcfg, GError **error)
 	switch (method) {
 	case NM_SETTING_PROXY_METHOD_AUTO:
 		g_object_set (s_proxy,
-		              NM_SETTING_PROXY_METHOD, NM_SETTING_PROXY_METHOD_AUTO,
+		              NM_SETTING_PROXY_METHOD, (int) NM_SETTING_PROXY_METHOD_AUTO,
 		              NULL);
 
 		value = svGetValue (ifcfg, "PAC_URL", FALSE);
@@ -942,8 +942,9 @@ make_proxy_setting (shvarFile *ifcfg, GError **error)
 		break;
 	case NM_SETTING_PROXY_METHOD_NONE:
 		g_object_set (s_proxy,
-		              NM_SETTING_PROXY_METHOD, NM_SETTING_PROXY_METHOD_NONE,
+		              NM_SETTING_PROXY_METHOD, (int) NM_SETTING_PROXY_METHOD_NONE,
 		              NULL);
+		break;
 	}
 
 	value = svGetValue (ifcfg, "BROWSER_ONLY", FALSE);

src/settings/plugins/ifcfg-rh/writer.c

@@ -2030,7 +2030,7 @@ write_proxy_setting (NMConnection *connection, shvarFile *ifcfg, GError **error)
 		break;
 	case NM_SETTING_PROXY_METHOD_NONE:
 		svSetValue (ifcfg, "PROXY_METHOD", "none", FALSE);
-		/* Write nothing more */
+		break;
 	}
 
 	browser_only = nm_setting_proxy_get_browser_only (s_proxy);