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-rw-r--r--src/libnm-core-impl/nm-setting-connection.c2568
1 files changed, 2568 insertions, 0 deletions
diff --git a/src/libnm-core-impl/nm-setting-connection.c b/src/libnm-core-impl/nm-setting-connection.c
new file mode 100644
index 00000000..3d57bc3e
--- /dev/null
+++ b/src/libnm-core-impl/nm-setting-connection.c
@@ -0,0 +1,2568 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2007 - 2013 Red Hat, Inc.
+ * Copyright (C) 2007 - 2008 Novell, Inc.
+ */
+
+#include "libnm-core-impl/nm-default-libnm-core.h"
+
+#include "nm-setting-connection.h"
+
+#include "libnm-glib-aux/nm-uuid.h"
+#include "libnm-core-aux-intern/nm-common-macros.h"
+#include "nm-utils.h"
+#include "nm-utils-private.h"
+#include "nm-core-enum-types.h"
+#include "nm-connection-private.h"
+#include "nm-setting-bond.h"
+#include "nm-setting-bridge.h"
+#include "nm-setting-team.h"
+#include "nm-setting-vlan.h"
+#include "libnm-systemd-shared/nm-sd-utils-shared.h"
+
+/**
+ * SECTION:nm-setting-connection
+ * @short_description: Describes general connection properties
+ *
+ * The #NMSettingConnection object is a #NMSetting subclass that describes
+ * properties that apply to all #NMConnection objects, regardless of what type
+ * of network connection they describe.  Each #NMConnection object must contain
+ * a #NMSettingConnection setting.
+ **/
+
+/*****************************************************************************/
+
+typedef enum _nm_packed {
+    PERM_TYPE_INVALID,
+    PERM_TYPE_USER,
+} PermType;
+
+typedef struct {
+    PermType ptype;
+    char *   item;
+} Permission;
+
+NM_GOBJECT_PROPERTIES_DEFINE(NMSettingConnection,
+                             PROP_ID,
+                             PROP_UUID,
+                             PROP_INTERFACE_NAME,
+                             PROP_TYPE,
+                             PROP_PERMISSIONS,
+                             PROP_AUTOCONNECT,
+                             PROP_AUTOCONNECT_PRIORITY,
+                             PROP_AUTOCONNECT_RETRIES,
+                             PROP_MULTI_CONNECT,
+                             PROP_TIMESTAMP,
+                             PROP_READ_ONLY,
+                             PROP_ZONE,
+                             PROP_MASTER,
+                             PROP_SLAVE_TYPE,
+                             PROP_AUTOCONNECT_SLAVES,
+                             PROP_SECONDARIES,
+                             PROP_GATEWAY_PING_TIMEOUT,
+                             PROP_METERED,
+                             PROP_LLDP,
+                             PROP_MDNS,
+                             PROP_LLMNR,
+                             PROP_STABLE_ID,
+                             PROP_AUTH_RETRIES,
+                             PROP_WAIT_DEVICE_TIMEOUT,
+                             PROP_MUD_URL, );
+
+typedef struct {
+    GArray *                             permissions;
+    GArray *                             secondaries;
+    char *                               id;
+    char *                               uuid;
+    char *                               stable_id;
+    char *                               interface_name;
+    char *                               type;
+    char *                               master;
+    char *                               slave_type;
+    char *                               zone;
+    char *                               mud_url;
+    guint64                              timestamp;
+    int                                  autoconnect_priority;
+    int                                  autoconnect_retries;
+    int                                  multi_connect;
+    int                                  auth_retries;
+    int                                  mdns;
+    int                                  llmnr;
+    int                                  wait_device_timeout;
+    guint                                gateway_ping_timeout;
+    NMSettingConnectionAutoconnectSlaves autoconnect_slaves;
+    NMMetered                            metered;
+    NMSettingConnectionLldp              lldp;
+    bool                                 read_only : 1;
+    bool                                 autoconnect : 1;
+} NMSettingConnectionPrivate;
+
+/**
+ * NMSettingConnection:
+ *
+ * General Connection Profile Settings
+ */
+struct _NMSettingConnection {
+    NMSetting parent;
+    /* In the past, this struct was public API. Preserve ABI! */
+};
+
+struct _NMSettingConnectionClass {
+    NMSettingClass parent;
+    /* In the past, this struct was public API. Preserve ABI! */
+    gpointer padding[4];
+};
+
+G_DEFINE_TYPE(NMSettingConnection, nm_setting_connection, NM_TYPE_SETTING)
+
+#define NM_SETTING_CONNECTION_GET_PRIVATE(o) \
+    (G_TYPE_INSTANCE_GET_PRIVATE((o), NM_TYPE_SETTING_CONNECTION, NMSettingConnectionPrivate))
+
+/*****************************************************************************/
+
+static void
+_permission_set_stale(Permission *permission, PermType ptype, char *item_take)
+{
+    nm_assert(permission);
+    nm_assert(NM_IN_SET(ptype, PERM_TYPE_INVALID, PERM_TYPE_USER));
+    nm_assert(ptype != PERM_TYPE_USER
+              || nm_settings_connection_validate_permission_user(item_take, -1));
+
+    /* we don't inspect (clear) permission before setting. It takes a
+     * stale instance. */
+    *permission = (Permission){
+        .ptype = ptype,
+        .item  = item_take,
+    };
+}
+
+static void
+_permission_clear_stale(Permission *permission)
+{
+    g_free(permission->item);
+    /* We leave the permission instance with dangling pointers.
+     * It is "stale". */
+}
+
+static gboolean
+_permission_set_stale_parse(Permission *permission, const char *str)
+{
+    const char *str0 = str;
+    const char *last_colon;
+    gsize       ulen;
+
+    nm_assert(str);
+
+    if (!str)
+        goto invalid;
+
+    if (!NM_STR_HAS_PREFIX(str, NM_SETTINGS_CONNECTION_PERMISSION_USER_PREFIX))
+        goto invalid;
+
+    str += NM_STRLEN(NM_SETTINGS_CONNECTION_PERMISSION_USER_PREFIX);
+
+    last_colon = strrchr(str, ':');
+    if (last_colon) {
+        /* Reject :[detail] for now */
+        if (last_colon[1] != '\0')
+            goto invalid;
+        ulen = last_colon - str;
+    } else
+        ulen = strlen(str);
+
+    if (!nm_settings_connection_validate_permission_user(str, ulen))
+        goto invalid;
+
+    /* Yay, valid... create the new permission */
+    if (permission)
+        _permission_set_stale(permission, PERM_TYPE_USER, g_strndup(str, ulen));
+    return TRUE;
+
+invalid:
+    if (permission)
+        _permission_set_stale(permission, PERM_TYPE_INVALID, g_strdup(str0));
+    return FALSE;
+}
+
+static char *
+_permission_to_string(Permission *permission)
+{
+    nm_assert(permission);
+
+    switch (permission->ptype) {
+    case PERM_TYPE_USER:
+        return g_strdup_printf(NM_SETTINGS_CONNECTION_PERMISSION_USER_PREFIX "%s:",
+                               permission->item);
+    case PERM_TYPE_INVALID:
+        nm_assert(permission->item);
+        return g_strdup(permission->item);
+    }
+    nm_assert_not_reached();
+    return g_strdup(permission->item ?: "");
+}
+
+/*****************************************************************************/
+
+/**
+ * nm_setting_connection_get_id:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:id property of the connection.
+ *
+ * Returns: the connection ID
+ **/
+const char *
+nm_setting_connection_get_id(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->id;
+}
+
+/**
+ * nm_setting_connection_get_uuid:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:uuid property of the connection.
+ *
+ * Returns: the connection UUID
+ **/
+const char *
+nm_setting_connection_get_uuid(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->uuid;
+}
+
+/**
+ * nm_setting_connection_get_stable_id:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:stable_id property of the connection.
+ *
+ * Returns: the stable-id for the connection
+ *
+ * Since: 1.4
+ **/
+const char *
+nm_setting_connection_get_stable_id(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->stable_id;
+}
+
+/**
+ * nm_setting_connection_get_interface_name:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:interface-name property of the connection.
+ *
+ * Returns: the connection's interface name
+ **/
+const char *
+nm_setting_connection_get_interface_name(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->interface_name;
+}
+
+/**
+ * nm_setting_connection_get_connection_type:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:type property of the connection.
+ *
+ * Returns: the connection type
+ **/
+const char *
+nm_setting_connection_get_connection_type(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->type;
+}
+
+/**
+ * nm_setting_connection_get_num_permissions:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the number of entries in the #NMSettingConnection:permissions
+ * property of this setting.
+ *
+ * Returns: the number of permissions entries
+ */
+guint32
+nm_setting_connection_get_num_permissions(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), 0);
+
+    return nm_g_array_len(NM_SETTING_CONNECTION_GET_PRIVATE(setting)->permissions);
+}
+
+/**
+ * nm_setting_connection_get_permission:
+ * @setting: the #NMSettingConnection
+ * @idx: the zero-based index of the permissions entry
+ * @out_ptype: on return, the permission type. This is currently always "user",
+ *   unless the entry is invalid, in which case it returns "invalid".
+ * @out_pitem: on return, the permission item (formatted according to @ptype, see
+ * #NMSettingConnection:permissions for more detail
+ * @out_detail: on return, the permission detail (at this time, always %NULL)
+ *
+ * Retrieve one of the entries of the #NMSettingConnection:permissions property
+ * of this setting.
+ *
+ * Returns: %TRUE if a permission was returned, %FALSE if @idx was invalid
+ */
+gboolean
+nm_setting_connection_get_permission(NMSettingConnection *setting,
+                                     guint32              idx,
+                                     const char **        out_ptype,
+                                     const char **        out_pitem,
+                                     const char **        out_detail)
+{
+    NMSettingConnectionPrivate *priv;
+    Permission *                permission;
+
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
+
+    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    g_return_val_if_fail(idx < nm_g_array_len(priv->permissions), FALSE);
+
+    permission = &g_array_index(priv->permissions, Permission, idx);
+    switch (permission->ptype) {
+    case PERM_TYPE_USER:
+        NM_SET_OUT(out_ptype, NM_SETTINGS_CONNECTION_PERMISSION_USER);
+        NM_SET_OUT(out_pitem, permission->item);
+        NM_SET_OUT(out_detail, NULL);
+        return TRUE;
+    case PERM_TYPE_INVALID:
+        goto invalid;
+    }
+    nm_assert_not_reached();
+invalid:
+    NM_SET_OUT(out_ptype, "invalid");
+    NM_SET_OUT(out_pitem, permission->item);
+    NM_SET_OUT(out_detail, NULL);
+    return TRUE;
+}
+
+/**
+ * nm_setting_connection_permissions_user_allowed:
+ * @setting: the #NMSettingConnection
+ * @uname: the user name to check permissions for
+ *
+ * Checks whether the given username is allowed to view/access this connection.
+ *
+ * Returns: %TRUE if the requested user is allowed to view this connection,
+ * %FALSE if the given user is not allowed to view this connection
+ */
+gboolean
+nm_setting_connection_permissions_user_allowed(NMSettingConnection *setting, const char *uname)
+{
+    NMSettingConnectionPrivate *priv;
+    guint                       i;
+
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
+    g_return_val_if_fail(uname != NULL, FALSE);
+
+    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    if (nm_g_array_len(priv->permissions) == 0) {
+        /* If no permissions, visible to all */
+        return TRUE;
+    }
+
+    for (i = 0; i < priv->permissions->len; i++) {
+        const Permission *permission = &g_array_index(priv->permissions, Permission, i);
+
+        if (permission->ptype == PERM_TYPE_USER && nm_streq(permission->item, uname))
+            return TRUE;
+    }
+
+    return FALSE;
+}
+
+/**
+ * nm_setting_connection_add_permission:
+ * @setting: the #NMSettingConnection
+ * @ptype: the permission type; at this time only "user" is supported
+ * @pitem: the permission item formatted as required for @ptype
+ * @detail: (allow-none): unused at this time; must be %NULL
+ *
+ * Adds a permission to the connection's permission list.  At this time, only
+ * the "user" permission type is supported, and @pitem must be a username. See
+ * #NMSettingConnection:permissions: for more details.
+ *
+ * Returns: %TRUE if the permission was unique and was successfully added to the
+ * list, %FALSE if @ptype or @pitem was invalid.
+ * If the permission was already present in the list, it will not be added
+ * a second time but %TRUE will be returned. Note that before 1.28, in this
+ * case %FALSE would be returned.
+ */
+gboolean
+nm_setting_connection_add_permission(NMSettingConnection *setting,
+                                     const char *         ptype,
+                                     const char *         pitem,
+                                     const char *         detail)
+{
+    NMSettingConnectionPrivate *priv;
+    guint                       i;
+
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
+    g_return_val_if_fail(ptype, FALSE);
+    g_return_val_if_fail(pitem, FALSE);
+
+    if (!nm_streq0(ptype, NM_SETTINGS_CONNECTION_PERMISSION_USER))
+        return FALSE;
+
+    if (!nm_settings_connection_validate_permission_user(pitem, -1))
+        return FALSE;
+
+    if (detail)
+        return FALSE;
+
+    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    if (!priv->permissions) {
+        priv->permissions = g_array_sized_new(FALSE, FALSE, sizeof(Permission), 1);
+        g_array_set_clear_func(priv->permissions, (GDestroyNotify) _permission_clear_stale);
+    }
+
+    for (i = 0; i < priv->permissions->len; i++) {
+        const Permission *permission = &g_array_index(priv->permissions, Permission, i);
+
+        if (permission->ptype == PERM_TYPE_USER && nm_streq(permission->item, pitem))
+            return TRUE;
+    }
+
+    _permission_set_stale(nm_g_array_append_new(priv->permissions, Permission),
+                          PERM_TYPE_USER,
+                          g_strdup(pitem));
+    _notify(setting, PROP_PERMISSIONS);
+    return TRUE;
+}
+
+/**
+ * nm_setting_connection_remove_permission:
+ * @setting: the #NMSettingConnection
+ * @idx: the zero-based index of the permission to remove
+ *
+ * Removes the permission at index @idx from the connection.
+ */
+void
+nm_setting_connection_remove_permission(NMSettingConnection *setting, guint32 idx)
+{
+    NMSettingConnectionPrivate *priv;
+
+    g_return_if_fail(NM_IS_SETTING_CONNECTION(setting));
+
+    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    g_return_if_fail(idx < nm_g_array_len(priv->permissions));
+
+    g_array_remove_index(priv->permissions, idx);
+
+    _notify(setting, PROP_PERMISSIONS);
+}
+
+/**
+ * nm_setting_connection_remove_permission_by_value:
+ * @setting: the #NMSettingConnection
+ * @ptype: the permission type; at this time only "user" is supported
+ * @pitem: the permission item formatted as required for @ptype
+ * @detail: (allow-none): unused at this time; must be %NULL
+ *
+ * Removes the permission from the connection.
+ * At this time, only the "user" permission type is supported, and @pitem must
+ * be a username. See #NMSettingConnection:permissions: for more details.
+ *
+ * Returns: %TRUE if the permission was found and removed; %FALSE if it was not.
+ */
+gboolean
+nm_setting_connection_remove_permission_by_value(NMSettingConnection *setting,
+                                                 const char *         ptype,
+                                                 const char *         pitem,
+                                                 const char *         detail)
+{
+    NMSettingConnectionPrivate *priv;
+    guint                       i;
+
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
+    g_return_val_if_fail(ptype, FALSE);
+    g_return_val_if_fail(pitem, FALSE);
+
+    if (!nm_streq0(ptype, NM_SETTINGS_CONNECTION_PERMISSION_USER))
+        return FALSE;
+
+    if (detail)
+        return FALSE;
+
+    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+    if (priv->permissions) {
+        for (i = 0; i < priv->permissions->len; i++) {
+            const Permission *permission = &g_array_index(priv->permissions, Permission, i);
+
+            if (permission->ptype == PERM_TYPE_USER && nm_streq(permission->item, pitem)) {
+                g_array_remove_index(priv->permissions, i);
+                _notify(setting, PROP_PERMISSIONS);
+                return TRUE;
+            }
+        }
+    }
+    return FALSE;
+}
+
+/**
+ * nm_setting_connection_get_autoconnect:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:autoconnect property of the connection.
+ *
+ * Returns: the connection's autoconnect behavior
+ **/
+gboolean
+nm_setting_connection_get_autoconnect(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->autoconnect;
+}
+
+/**
+ * nm_setting_connection_get_autoconnect_priority:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:autoconnect-priority property of the connection.
+ * The higher number, the higher priority.
+ *
+ * Returns: the connection's autoconnect priority
+ **/
+int
+nm_setting_connection_get_autoconnect_priority(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), 0);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->autoconnect_priority;
+}
+
+/**
+ * nm_setting_connection_get_autoconnect_retries:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:autoconnect-retries property of the connection.
+ * Zero means infinite, -1 means the global default value.
+ *
+ * Returns: the connection's autoconnect retries
+ *
+ * Since: 1.6
+ **/
+int
+nm_setting_connection_get_autoconnect_retries(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), -1);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->autoconnect_retries;
+}
+
+/**
+ * nm_setting_connection_get_multi_connect:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns: the #NMSettingConnection:multi-connect property of the connection.
+ *
+ * Since: 1.14
+ **/
+NMConnectionMultiConnect
+nm_setting_connection_get_multi_connect(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), -1);
+
+    return (NMConnectionMultiConnect) NM_SETTING_CONNECTION_GET_PRIVATE(setting)->multi_connect;
+}
+
+/**
+ * nm_setting_connection_get_auth_retries:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the value contained in the #NMSettingConnection:auth-retries property.
+ *
+ * Returns: the configured authentication retries. Zero means
+ * infinity and -1 means a global default value.
+ *
+ * Since: 1.10
+ **/
+int
+nm_setting_connection_get_auth_retries(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), -1);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->auth_retries;
+}
+
+/**
+ * nm_setting_connection_get_timestamp:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:timestamp property of the connection.
+ *
+ * Returns: the connection's timestamp
+ **/
+guint64
+nm_setting_connection_get_timestamp(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), 0);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->timestamp;
+}
+
+static GVariant *
+_to_dbus_fcn_timestamp(const NMSettInfoSetting *               sett_info,
+                       guint                                   property_idx,
+                       NMConnection *                          connection,
+                       NMSetting *                             setting,
+                       NMConnectionSerializationFlags          flags,
+                       const NMConnectionSerializationOptions *options)
+{
+    guint64 v;
+
+    v = options && options->timestamp.has ? options->timestamp.val
+                                          : NM_SETTING_CONNECTION_GET_PRIVATE(setting)->timestamp;
+
+    if (v == 0u)
+        return NULL;
+
+    return g_variant_new_uint64(v);
+}
+
+/**
+ * nm_setting_connection_get_read_only:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:read-only property of the connection.
+ *
+ * Returns: %TRUE if the connection is read-only, %FALSE if it is not
+ **/
+gboolean
+nm_setting_connection_get_read_only(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), TRUE);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->read_only;
+}
+
+/**
+ * nm_setting_connection_get_zone:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:zone property of the connection.
+ *
+ * Returns: the trust level of a connection
+ **/
+const char *
+nm_setting_connection_get_zone(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->zone;
+}
+
+/**
+ * nm_setting_connection_get_master:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:master property of the connection.
+ *
+ * Returns: interface name of the master device or UUID of the master
+ * connection.
+ */
+const char *
+nm_setting_connection_get_master(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->master;
+}
+
+/**
+ * nm_setting_connection_get_slave_type:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:slave-type property of the connection.
+ *
+ * Returns: the type of slave this connection is, if any
+ */
+const char *
+nm_setting_connection_get_slave_type(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->slave_type;
+}
+
+/**
+ * nm_setting_connection_is_slave_type:
+ * @setting: the #NMSettingConnection
+ * @type: the setting name (ie #NM_SETTING_BOND_SETTING_NAME) to be matched
+ * against @setting's slave type
+ *
+ * Returns: %TRUE if connection is of the given slave @type
+ */
+gboolean
+nm_setting_connection_is_slave_type(NMSettingConnection *setting, const char *type)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
+
+    return !g_strcmp0(NM_SETTING_CONNECTION_GET_PRIVATE(setting)->slave_type, type);
+}
+
+/**
+ * nm_setting_connection_get_wait_device_timeout:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns: the %NM_SETTING_CONNECTION_WAIT_DEVICE_TIMEOUT property with
+ *   the timeout in milliseconds. -1 is the default.
+ *
+ * Since: 1.20
+ */
+gint32
+nm_setting_connection_get_wait_device_timeout(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), -1);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->wait_device_timeout;
+}
+
+/**
+ * nm_setting_connection_get_autoconnect_slaves:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:autoconnect-slaves property of the connection.
+ *
+ * Returns: whether slaves of the connection should be activated together
+ *          with the connection.
+ *
+ * Since: 1.2
+ **/
+NMSettingConnectionAutoconnectSlaves
+nm_setting_connection_get_autoconnect_slaves(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting),
+                         NM_SETTING_CONNECTION_AUTOCONNECT_SLAVES_DEFAULT);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->autoconnect_slaves;
+}
+
+GArray *
+_nm_setting_connection_get_secondaries(NMSettingConnection *setting)
+{
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->secondaries;
+}
+
+/**
+ * nm_setting_connection_get_num_secondaries:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns: the number of configured secondary connection UUIDs
+ **/
+guint32
+nm_setting_connection_get_num_secondaries(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), 0);
+
+    return nm_g_array_len(NM_SETTING_CONNECTION_GET_PRIVATE(setting)->secondaries);
+}
+
+/**
+ * nm_setting_connection_get_secondary:
+ * @setting: the #NMSettingConnection
+ * @idx: the zero-based index of the secondary connection UUID entry.
+ *   Access one past the length of secondaries is ok and will return
+ *   %NULL. Otherwise, it is a user error.
+ *
+ * Returns: the secondary connection UUID at index @idx or
+ *   %NULL if @idx is the number of secondaries.
+ **/
+const char *
+nm_setting_connection_get_secondary(NMSettingConnection *setting, guint32 idx)
+{
+    NMSettingConnectionPrivate *priv;
+    guint                       secondaries_len;
+
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    secondaries_len = nm_g_array_len(priv->secondaries);
+    if (idx >= secondaries_len) {
+        /* access one past the length is OK. */
+        g_return_val_if_fail(idx == secondaries_len, NULL);
+        return NULL;
+    }
+
+    return nm_strvarray_get_idx(priv->secondaries, idx);
+}
+
+/**
+ * nm_setting_connection_get_mud_url:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the value contained in the #NMSettingConnection:mud-url
+ * property.
+ *
+ * Since: 1.26
+ **/
+const char *
+nm_setting_connection_get_mud_url(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->mud_url;
+}
+
+/**
+ * nm_setting_connection_add_secondary:
+ * @setting: the #NMSettingConnection
+ * @sec_uuid: the secondary connection UUID to add
+ *
+ * Adds a new secondary connection UUID to the setting.
+ *
+ * Returns: %TRUE if the secondary connection UUID was added; %FALSE if the UUID
+ * was already present
+ **/
+gboolean
+nm_setting_connection_add_secondary(NMSettingConnection *setting, const char *sec_uuid)
+{
+    NMSettingConnectionPrivate *priv;
+
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
+    g_return_val_if_fail(sec_uuid, FALSE);
+
+    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    if (nm_strvarray_find_first(priv->secondaries, sec_uuid) >= 0)
+        return FALSE;
+
+    nm_strvarray_add(nm_strvarray_ensure(&priv->secondaries), sec_uuid);
+    _notify(setting, PROP_SECONDARIES);
+    return TRUE;
+}
+
+/**
+ * nm_setting_connection_remove_secondary:
+ * @setting: the #NMSettingConnection
+ * @idx: index number of the secondary connection UUID
+ *
+ * Removes the secondary connection UUID at index @idx.
+ **/
+void
+nm_setting_connection_remove_secondary(NMSettingConnection *setting, guint32 idx)
+{
+    NMSettingConnectionPrivate *priv;
+
+    g_return_if_fail(NM_IS_SETTING_CONNECTION(setting));
+
+    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    g_return_if_fail(idx < nm_g_array_len(priv->secondaries));
+
+    g_array_remove_index(priv->secondaries, idx);
+    _notify(setting, PROP_SECONDARIES);
+}
+
+/**
+ * nm_setting_connection_remove_secondary_by_value:
+ * @setting: the #NMSettingConnection
+ * @sec_uuid: the secondary connection UUID to remove
+ *
+ * Removes the secondary connection UUID @sec_uuid.
+ *
+ * Returns: %TRUE if the secondary connection UUID was found and removed; %FALSE if it was not.
+ **/
+gboolean
+nm_setting_connection_remove_secondary_by_value(NMSettingConnection *setting, const char *sec_uuid)
+{
+    NMSettingConnectionPrivate *priv;
+
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
+    g_return_val_if_fail(sec_uuid, FALSE);
+
+    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    if (nm_strvarray_remove_first(priv->secondaries, sec_uuid)) {
+        _notify(setting, PROP_SECONDARIES);
+        return TRUE;
+    }
+    return FALSE;
+}
+
+/**
+ * nm_setting_connection_get_gateway_ping_timeout:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns: the value contained in the #NMSettingConnection:gateway-ping-timeout
+ * property.
+ **/
+guint32
+nm_setting_connection_get_gateway_ping_timeout(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), 0);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->gateway_ping_timeout;
+}
+
+/**
+ * nm_setting_connection_get_metered:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns: the #NMSettingConnection:metered property of the setting.
+ *
+ * Since: 1.2
+ **/
+NMMetered
+nm_setting_connection_get_metered(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NM_METERED_UNKNOWN);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->metered;
+}
+
+/**
+ * nm_setting_connection_get_lldp:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns the #NMSettingConnection:lldp property of the connection.
+ *
+ * Returns: a %NMSettingConnectionLldp which indicates whether LLDP must be
+ * enabled for the connection.
+ *
+ * Since: 1.2
+ **/
+NMSettingConnectionLldp
+nm_setting_connection_get_lldp(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NM_SETTING_CONNECTION_LLDP_DEFAULT);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->lldp;
+}
+
+/**
+ * nm_setting_connection_get_mdns:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns: the #NMSettingConnection:mdns property of the setting.
+ *
+ * Since: 1.12
+ **/
+NMSettingConnectionMdns
+nm_setting_connection_get_mdns(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NM_SETTING_CONNECTION_MDNS_DEFAULT);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->mdns;
+}
+
+/**
+ * nm_setting_connection_get_llmnr:
+ * @setting: the #NMSettingConnection
+ *
+ * Returns: the #NMSettingConnection:llmnr property of the setting.
+ *
+ * Since: 1.14
+ **/
+NMSettingConnectionLlmnr
+nm_setting_connection_get_llmnr(NMSettingConnection *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NM_SETTING_CONNECTION_LLMNR_DEFAULT);
+
+    return NM_SETTING_CONNECTION_GET_PRIVATE(setting)->llmnr;
+}
+
+static void
+_set_error_missing_base_setting(GError **error, const char *type)
+{
+    g_set_error(error,
+                NM_CONNECTION_ERROR,
+                NM_CONNECTION_ERROR_MISSING_SETTING,
+                _("setting required for connection of type '%s'"),
+                type);
+    g_prefix_error(error, "%s: ", type);
+}
+
+gboolean
+_nm_connection_detect_slave_type_full(NMSettingConnection *s_con,
+                                      NMConnection *       connection,
+                                      const char **        out_slave_type,
+                                      const char **        out_normerr_slave_setting_type,
+                                      const char **        out_normerr_missing_slave_type,
+                                      const char **        out_normerr_missing_slave_type_port,
+                                      GError **            error)
+{
+    NMSettingConnectionPrivate *priv = NM_SETTING_CONNECTION_GET_PRIVATE(s_con);
+    gboolean                    is_slave;
+    const char *                slave_setting_type;
+    const char *                slave_type;
+    const char *                normerr_slave_setting_type      = NULL;
+    const char *                normerr_missing_slave_type      = NULL;
+    const char *                normerr_missing_slave_type_port = NULL;
+
+    is_slave           = FALSE;
+    slave_setting_type = NULL;
+    slave_type         = priv->slave_type;
+    if (slave_type) {
+        is_slave = _nm_setting_slave_type_is_valid(slave_type, &slave_setting_type);
+        if (!is_slave) {
+            g_set_error(error,
+                        NM_CONNECTION_ERROR,
+                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                        _("Unknown slave type '%s'"),
+                        slave_type);
+            g_prefix_error(error,
+                           "%s.%s: ",
+                           NM_SETTING_CONNECTION_SETTING_NAME,
+                           NM_SETTING_CONNECTION_SLAVE_TYPE);
+            return FALSE;
+        }
+    }
+
+    if (is_slave) {
+        if (!priv->master) {
+            g_set_error(error,
+                        NM_CONNECTION_ERROR,
+                        NM_CONNECTION_ERROR_MISSING_PROPERTY,
+                        _("Slave connections need a valid '%s' property"),
+                        NM_SETTING_CONNECTION_MASTER);
+            g_prefix_error(error,
+                           "%s.%s: ",
+                           NM_SETTING_CONNECTION_SETTING_NAME,
+                           NM_SETTING_CONNECTION_MASTER);
+            return FALSE;
+        }
+        if (slave_setting_type && connection
+            && !nm_connection_get_setting_by_name(connection, slave_setting_type))
+            normerr_slave_setting_type = slave_setting_type;
+    } else {
+        nm_assert(!slave_type);
+        if (priv->master) {
+            NMSetting *s_port;
+
+            if (connection
+                && (slave_type = _nm_connection_detect_slave_type(connection, &s_port))) {
+                normerr_missing_slave_type      = slave_type;
+                normerr_missing_slave_type_port = nm_setting_get_name(s_port);
+            } else {
+                g_set_error(error,
+                            NM_CONNECTION_ERROR,
+                            NM_CONNECTION_ERROR_MISSING_PROPERTY,
+                            _("Cannot set '%s' without '%s'"),
+                            NM_SETTING_CONNECTION_MASTER,
+                            NM_SETTING_CONNECTION_SLAVE_TYPE);
+                g_prefix_error(error,
+                               "%s.%s: ",
+                               NM_SETTING_CONNECTION_SETTING_NAME,
+                               NM_SETTING_CONNECTION_SLAVE_TYPE);
+                return FALSE;
+            }
+        }
+    }
+
+    NM_SET_OUT(out_slave_type, slave_type);
+    NM_SET_OUT(out_normerr_slave_setting_type, normerr_slave_setting_type);
+    NM_SET_OUT(out_normerr_missing_slave_type, normerr_missing_slave_type);
+    NM_SET_OUT(out_normerr_missing_slave_type_port, normerr_missing_slave_type_port);
+    return TRUE;
+}
+
+static gboolean
+verify(NMSetting *setting, NMConnection *connection, GError **error)
+{
+    NMSettingConnection *       self              = NM_SETTING_CONNECTION(setting);
+    NMSettingConnectionPrivate *priv              = NM_SETTING_CONNECTION_GET_PRIVATE(self);
+    NMSetting *                 normerr_base_type = NULL;
+    const char *                type;
+    const char *                slave_type;
+    const char *                normerr_slave_setting_type      = NULL;
+    const char *                normerr_missing_slave_type      = NULL;
+    const char *                normerr_missing_slave_type_port = NULL;
+    gboolean                    normerr_base_setting            = FALSE;
+    gboolean                    uuid_was_normalized             = FALSE;
+
+    if (!priv->id) {
+        g_set_error_literal(error,
+                            NM_CONNECTION_ERROR,
+                            NM_CONNECTION_ERROR_MISSING_PROPERTY,
+                            _("property is missing"));
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_ID);
+        return FALSE;
+    } else if (!priv->id[0]) {
+        g_set_error_literal(error,
+                            NM_CONNECTION_ERROR,
+                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                            _("property is empty"));
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_ID);
+        return FALSE;
+    }
+
+    if (priv->uuid && !nm_uuid_is_valid_nm(priv->uuid, &uuid_was_normalized, NULL)) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                    _("'%s' is not a valid UUID"),
+                    priv->uuid);
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_UUID);
+        return FALSE;
+    }
+
+    type = priv->type;
+    if (!type) {
+        if (!connection
+            || !(normerr_base_type = _nm_connection_find_base_type_setting(connection))) {
+            g_set_error_literal(error,
+                                NM_CONNECTION_ERROR,
+                                NM_CONNECTION_ERROR_MISSING_PROPERTY,
+                                _("property is missing"));
+            g_prefix_error(error,
+                           "%s.%s: ",
+                           NM_SETTING_CONNECTION_SETTING_NAME,
+                           NM_SETTING_CONNECTION_TYPE);
+            return FALSE;
+        }
+        type = nm_setting_get_name(normerr_base_type);
+    } else {
+        GType base_type;
+
+        if (!type[0]) {
+            g_set_error_literal(error,
+                                NM_CONNECTION_ERROR,
+                                NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                                _("property is empty"));
+            g_prefix_error(error,
+                           "%s.%s: ",
+                           NM_SETTING_CONNECTION_SETTING_NAME,
+                           NM_SETTING_CONNECTION_TYPE);
+            return FALSE;
+        }
+
+        base_type = nm_setting_lookup_type(type);
+        if (base_type == G_TYPE_INVALID
+            || _nm_setting_type_get_base_type_priority(base_type) == NM_SETTING_PRIORITY_INVALID) {
+            g_set_error(error,
+                        NM_CONNECTION_ERROR,
+                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                        _("connection type '%s' is not valid"),
+                        type);
+            g_prefix_error(error,
+                           "%s.%s: ",
+                           NM_SETTING_CONNECTION_SETTING_NAME,
+                           NM_SETTING_CONNECTION_TYPE);
+            return FALSE;
+        }
+
+        /* Make sure the corresponding 'type' item is present */
+        if (connection && !nm_connection_get_setting_by_name(connection, type)) {
+            NMSetting *   s_base;
+            NMConnection *connection2;
+
+            s_base      = g_object_new(base_type, NULL);
+            connection2 = nm_simple_connection_new_clone(connection);
+            nm_connection_add_setting(connection2, s_base);
+
+            normerr_base_setting = nm_setting_verify(s_base, connection2, NULL);
+
+            g_object_unref(connection2);
+
+            if (!normerr_base_setting) {
+                _set_error_missing_base_setting(error, type);
+                return FALSE;
+            }
+        }
+    }
+
+    if (priv->interface_name) {
+        GError *         tmp_error = NULL;
+        NMUtilsIfaceType iface_type;
+
+        if (NM_IN_STRSET(type,
+                         NM_SETTING_OVS_BRIDGE_SETTING_NAME,
+                         NM_SETTING_OVS_PORT_SETTING_NAME))
+            iface_type = NMU_IFACE_OVS;
+        else if (nm_streq(type, NM_SETTING_OVS_INTERFACE_SETTING_NAME)) {
+            NMSettingOvsInterface *s_ovs_iface = NULL;
+            const char *           ovs_iface_type;
+
+            if (connection)
+                s_ovs_iface = nm_connection_get_setting_ovs_interface(connection);
+            _nm_setting_ovs_interface_verify_interface_type(
+                s_ovs_iface,
+                s_ovs_iface ? nm_setting_ovs_interface_get_interface_type(s_ovs_iface) : NULL,
+                connection,
+                FALSE,
+                NULL,
+                &ovs_iface_type,
+                NULL);
+            if (!ovs_iface_type) {
+                /* We cannot determine to OVS interface type. Consequently, we cannot
+                 * fully validate the interface name.
+                 *
+                 * If we have a connection (and we do a full validation anyway), skip the
+                 * check. The connection will fail validation when we validate the OVS setting.
+                 *
+                 * Otherwise, do the most basic validation.
+                 */
+                if (connection)
+                    goto after_interface_name;
+                iface_type = NMU_IFACE_ANY;
+            } else if (NM_IN_STRSET(ovs_iface_type, "patch")) {
+                /* this interface type is internal to OVS. */
+                iface_type = NMU_IFACE_OVS;
+            } else {
+                /* This interface type also requires a netdev. We need to validate
+                 * for both OVS and KERNEL. */
+                nm_assert(NM_IN_STRSET(ovs_iface_type, "internal", "system", "dpdk"));
+                iface_type = NMU_IFACE_OVS_AND_KERNEL;
+            }
+        } else
+            iface_type = NMU_IFACE_KERNEL;
+
+        if (!nm_utils_ifname_valid(priv->interface_name, iface_type, &tmp_error)) {
+            g_set_error(error,
+                        NM_CONNECTION_ERROR,
+                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                        "'%s': %s",
+                        priv->interface_name,
+                        tmp_error->message);
+            g_prefix_error(error,
+                           "%s.%s: ",
+                           NM_SETTING_CONNECTION_SETTING_NAME,
+                           NM_SETTING_CONNECTION_INTERFACE_NAME);
+            g_error_free(tmp_error);
+            return FALSE;
+        }
+    }
+after_interface_name:
+
+    if (!_nm_connection_detect_slave_type_full(self,
+                                               connection,
+                                               &slave_type,
+                                               &normerr_slave_setting_type,
+                                               &normerr_missing_slave_type,
+                                               &normerr_missing_slave_type_port,
+                                               error))
+        return FALSE;
+
+    if (nm_streq(type, NM_SETTING_OVS_PORT_SETTING_NAME) && slave_type
+        && !nm_streq(slave_type, NM_SETTING_OVS_BRIDGE_SETTING_NAME)) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_MISSING_PROPERTY,
+                    _("'%s' connections must be enslaved to '%s', not '%s'"),
+                    NM_SETTING_OVS_PORT_SETTING_NAME,
+                    NM_SETTING_OVS_BRIDGE_SETTING_NAME,
+                    slave_type);
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_SLAVE_TYPE);
+        return FALSE;
+    }
+
+    if (priv->metered != NM_METERED_UNKNOWN && priv->metered != NM_METERED_YES
+        && priv->metered != NM_METERED_NO) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                    _("metered value %d is not valid"),
+                    priv->metered);
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_METERED);
+        return FALSE;
+    }
+
+    if (priv->mdns < (int) NM_SETTING_CONNECTION_MDNS_DEFAULT
+        || priv->mdns > (int) NM_SETTING_CONNECTION_MDNS_YES) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                    _("value %d is not valid"),
+                    priv->mdns);
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_MDNS);
+        return FALSE;
+    }
+
+    if (priv->llmnr < (int) NM_SETTING_CONNECTION_LLMNR_DEFAULT
+        || priv->llmnr > (int) NM_SETTING_CONNECTION_LLMNR_YES) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                    _("value %d is not valid"),
+                    priv->llmnr);
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_LLMNR);
+        return FALSE;
+    }
+
+    if (!NM_IN_SET(priv->multi_connect,
+                   (int) NM_CONNECTION_MULTI_CONNECT_DEFAULT,
+                   (int) NM_CONNECTION_MULTI_CONNECT_SINGLE,
+                   (int) NM_CONNECTION_MULTI_CONNECT_MANUAL_MULTIPLE,
+                   (int) NM_CONNECTION_MULTI_CONNECT_MULTIPLE)) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                    _("value %d is not valid"),
+                    priv->multi_connect);
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_MULTI_CONNECT);
+        return FALSE;
+    }
+
+    if (priv->mud_url) {
+        if (!priv->mud_url[0]) {
+            g_set_error_literal(error,
+                                NM_CONNECTION_ERROR,
+                                NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                                _("property is empty"));
+            g_prefix_error(error,
+                           "%s.%s: ",
+                           nm_setting_get_name(setting),
+                           NM_SETTING_CONNECTION_MUD_URL);
+            return FALSE;
+        }
+        if (nm_streq(priv->mud_url, NM_CONNECTION_MUD_URL_NONE)) {
+            /* pass */
+        } else {
+            if (strlen(priv->mud_url) > 255) {
+                g_set_error_literal(error,
+                                    NM_CONNECTION_ERROR,
+                                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                                    _("DHCP option cannot be longer than 255 characters"));
+                g_prefix_error(error,
+                               "%s.%s: ",
+                               nm_setting_get_name(setting),
+                               NM_SETTING_CONNECTION_MUD_URL);
+                return FALSE;
+            }
+            if (!nm_sd_http_url_is_valid_https(priv->mud_url)) {
+                g_set_error_literal(error,
+                                    NM_CONNECTION_ERROR,
+                                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                                    _("MUD URL is not a valid URL"));
+                g_prefix_error(error,
+                               "%s.%s: ",
+                               nm_setting_get_name(setting),
+                               NM_SETTING_CONNECTION_MUD_URL);
+                return FALSE;
+            }
+        }
+    }
+
+    if (priv->permissions) {
+        guint i;
+
+        for (i = 0; i < priv->permissions->len; i++) {
+            const Permission *permissions = &g_array_index(priv->permissions, Permission, i);
+
+            if (permissions->ptype != PERM_TYPE_USER) {
+                g_set_error_literal(error,
+                                    NM_CONNECTION_ERROR,
+                                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
+                                    _("invalid permissions not in format \"user:$UNAME[:]\""));
+                g_prefix_error(error,
+                               "%s.%s: ",
+                               nm_setting_get_name(setting),
+                               NM_SETTING_CONNECTION_PERMISSIONS);
+                return FALSE;
+            }
+            nm_assert(nm_settings_connection_validate_permission_user(permissions->item, -1));
+        }
+    }
+
+    /* *** errors above here should be always fatal, below NORMALIZABLE_ERROR *** */
+
+    if (!priv->uuid) {
+        g_set_error_literal(error,
+                            NM_CONNECTION_ERROR,
+                            NM_CONNECTION_ERROR_MISSING_PROPERTY,
+                            _("property is missing"));
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_UUID);
+        return NM_SETTING_VERIFY_NORMALIZABLE_ERROR;
+    }
+
+    if (normerr_base_type) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_MISSING_PROPERTY,
+                    _("property type should be set to '%s'"),
+                    nm_setting_get_name(normerr_base_type));
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_TYPE);
+        return NM_SETTING_VERIFY_NORMALIZABLE_ERROR;
+    }
+
+    if (normerr_base_setting) {
+        _set_error_missing_base_setting(error, priv->type);
+        return NM_SETTING_VERIFY_NORMALIZABLE_ERROR;
+    }
+
+    if (normerr_slave_setting_type) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_MISSING_SETTING,
+                    _("slave-type '%s' requires a '%s' setting in the connection"),
+                    priv->slave_type,
+                    normerr_slave_setting_type);
+        g_prefix_error(error, "%s: ", normerr_slave_setting_type);
+        return NM_SETTING_VERIFY_NORMALIZABLE_ERROR;
+    }
+
+    if (normerr_missing_slave_type) {
+        g_set_error(error,
+                    NM_CONNECTION_ERROR,
+                    NM_CONNECTION_ERROR_MISSING_PROPERTY,
+                    _("Detect a slave connection with '%s' set and a port type '%s'. '%s' should "
+                      "be set to '%s'"),
+                    NM_SETTING_CONNECTION_MASTER,
+                    normerr_missing_slave_type_port,
+                    NM_SETTING_CONNECTION_SLAVE_TYPE,
+                    normerr_missing_slave_type);
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_SLAVE_TYPE);
+        return NM_SETTING_VERIFY_NORMALIZABLE_ERROR;
+    }
+
+    if (connection) {
+        gboolean has_bridge_port = FALSE;
+
+        if ((!nm_streq0(priv->slave_type, NM_SETTING_BRIDGE_SETTING_NAME)
+             && (has_bridge_port =
+                     !!nm_connection_get_setting_by_name(connection,
+                                                         NM_SETTING_BRIDGE_PORT_SETTING_NAME)))
+            || (!nm_streq0(priv->slave_type, NM_SETTING_TEAM_SETTING_NAME)
+                && nm_connection_get_setting_by_name(connection,
+                                                     NM_SETTING_TEAM_PORT_SETTING_NAME))) {
+            g_set_error(error,
+                        NM_CONNECTION_ERROR,
+                        NM_CONNECTION_ERROR_INVALID_SETTING,
+                        _("A slave connection with '%s' set to '%s' cannot have a '%s' setting"),
+                        NM_SETTING_CONNECTION_SLAVE_TYPE,
+                        priv->slave_type ?: "",
+                        has_bridge_port ? NM_SETTING_BRIDGE_PORT_SETTING_NAME
+                                        : NM_SETTING_TEAM_PORT_SETTING_NAME);
+            g_prefix_error(error,
+                           "%s.%s: ",
+                           NM_SETTING_CONNECTION_SETTING_NAME,
+                           NM_SETTING_CONNECTION_SLAVE_TYPE);
+            return NM_SETTING_VERIFY_NORMALIZABLE_ERROR;
+        }
+    }
+
+    if (uuid_was_normalized) {
+        g_set_error_literal(error,
+                            NM_CONNECTION_ERROR,
+                            NM_CONNECTION_ERROR_MISSING_PROPERTY,
+                            _("UUID needs normalization"));
+        g_prefix_error(error,
+                       "%s.%s: ",
+                       NM_SETTING_CONNECTION_SETTING_NAME,
+                       NM_SETTING_CONNECTION_UUID);
+        return NM_SETTING_VERIFY_NORMALIZABLE;
+    }
+
+    if (!_nm_setting_connection_verify_secondaries(priv->secondaries, error))
+        return NM_SETTING_VERIFY_NORMALIZABLE;
+
+    return TRUE;
+}
+
+static const char *
+find_virtual_interface_name(GVariant *connection_dict, GVariant **variant_to_free)
+{
+    GVariant *  setting_dict;
+    const char *interface_name;
+
+    nm_assert(variant_to_free && !*variant_to_free);
+
+    setting_dict = g_variant_lookup_value(connection_dict,
+                                          NM_SETTING_BOND_SETTING_NAME,
+                                          NM_VARIANT_TYPE_SETTING);
+    if (!setting_dict)
+        setting_dict = g_variant_lookup_value(connection_dict,
+                                              NM_SETTING_BRIDGE_SETTING_NAME,
+                                              NM_VARIANT_TYPE_SETTING);
+    if (!setting_dict)
+        setting_dict = g_variant_lookup_value(connection_dict,
+                                              NM_SETTING_TEAM_SETTING_NAME,
+                                              NM_VARIANT_TYPE_SETTING);
+    if (!setting_dict)
+        setting_dict = g_variant_lookup_value(connection_dict,
+                                              NM_SETTING_VLAN_SETTING_NAME,
+                                              NM_VARIANT_TYPE_SETTING);
+
+    if (!setting_dict)
+        return NULL;
+
+    *variant_to_free = setting_dict;
+
+    /* All of the deprecated virtual interface name properties were named "interface-name". */
+    if (!g_variant_lookup(setting_dict, "interface-name", "&s", &interface_name))
+        interface_name = NULL;
+
+    return interface_name;
+}
+
+static gboolean
+nm_setting_connection_no_interface_name(NMSetting *         setting,
+                                        GVariant *          connection_dict,
+                                        const char *        property,
+                                        NMSettingParseFlags parse_flags,
+                                        GError **           error)
+{
+    const char *     virtual_interface_name;
+    gs_unref_variant GVariant *variant_to_free = NULL;
+
+    virtual_interface_name = find_virtual_interface_name(connection_dict, &variant_to_free);
+    g_object_set(G_OBJECT(setting),
+                 NM_SETTING_CONNECTION_INTERFACE_NAME,
+                 virtual_interface_name,
+                 NULL);
+    return TRUE;
+}
+
+static NMTernary
+compare_property(const NMSettInfoSetting *sett_info,
+                 guint                    property_idx,
+                 NMConnection *           con_a,
+                 NMSetting *              set_a,
+                 NMConnection *           con_b,
+                 NMSetting *              set_b,
+                 NMSettingCompareFlags    flags)
+{
+    if (NM_FLAGS_HAS(flags, NM_SETTING_COMPARE_FLAG_IGNORE_ID)
+        && nm_streq(sett_info->property_infos[property_idx].name, NM_SETTING_CONNECTION_ID))
+        return NM_TERNARY_DEFAULT;
+
+    if (NM_FLAGS_HAS(flags, NM_SETTING_COMPARE_FLAG_IGNORE_TIMESTAMP)
+        && nm_streq(sett_info->property_infos[property_idx].name, NM_SETTING_CONNECTION_TIMESTAMP))
+        return NM_TERNARY_DEFAULT;
+
+    return NM_SETTING_CLASS(nm_setting_connection_parent_class)
+        ->compare_property(sett_info, property_idx, con_a, set_a, con_b, set_b, flags);
+}
+
+/*****************************************************************************/
+
+static void
+get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+    NMSettingConnection *       setting = NM_SETTING_CONNECTION(object);
+    NMSettingConnectionPrivate *priv    = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    switch (prop_id) {
+    case PROP_ID:
+        g_value_set_string(value, nm_setting_connection_get_id(setting));
+        break;
+    case PROP_UUID:
+        g_value_set_string(value, nm_setting_connection_get_uuid(setting));
+        break;
+    case PROP_STABLE_ID:
+        g_value_set_string(value, nm_setting_connection_get_stable_id(setting));
+        break;
+    case PROP_INTERFACE_NAME:
+        g_value_set_string(value, nm_setting_connection_get_interface_name(setting));
+        break;
+    case PROP_TYPE:
+        g_value_set_string(value, nm_setting_connection_get_connection_type(setting));
+        break;
+    case PROP_PERMISSIONS:
+    {
+        char **strv;
+        gsize  i, l;
+
+        l    = nm_g_array_len(priv->permissions);
+        strv = g_new(char *, l + 1u);
+
+        for (i = 0; i < l; i++)
+            strv[i] = _permission_to_string(&g_array_index(priv->permissions, Permission, i));
+        strv[i] = NULL;
+
+        g_value_take_boxed(value, strv);
+        break;
+    }
+    case PROP_AUTOCONNECT:
+        g_value_set_boolean(value, nm_setting_connection_get_autoconnect(setting));
+        break;
+    case PROP_AUTOCONNECT_PRIORITY:
+        g_value_set_int(value, nm_setting_connection_get_autoconnect_priority(setting));
+        break;
+    case PROP_AUTOCONNECT_RETRIES:
+        g_value_set_int(value, nm_setting_connection_get_autoconnect_retries(setting));
+        break;
+    case PROP_MULTI_CONNECT:
+        g_value_set_int(value, priv->multi_connect);
+        break;
+    case PROP_TIMESTAMP:
+        g_value_set_uint64(value, nm_setting_connection_get_timestamp(setting));
+        break;
+    case PROP_READ_ONLY:
+        g_value_set_boolean(value, nm_setting_connection_get_read_only(setting));
+        break;
+    case PROP_ZONE:
+        g_value_set_string(value, nm_setting_connection_get_zone(setting));
+        break;
+    case PROP_MASTER:
+        g_value_set_string(value, nm_setting_connection_get_master(setting));
+        break;
+    case PROP_SLAVE_TYPE:
+        g_value_set_string(value, nm_setting_connection_get_slave_type(setting));
+        break;
+    case PROP_AUTOCONNECT_SLAVES:
+        g_value_set_enum(value, nm_setting_connection_get_autoconnect_slaves(setting));
+        break;
+    case PROP_SECONDARIES:
+        g_value_take_boxed(value, nm_strvarray_get_strv_non_empty_dup(priv->secondaries, NULL));
+        break;
+    case PROP_GATEWAY_PING_TIMEOUT:
+        g_value_set_uint(value, priv->gateway_ping_timeout);
+        break;
+    case PROP_METERED:
+        g_value_set_enum(value, priv->metered);
+        break;
+    case PROP_LLDP:
+        g_value_set_int(value, priv->lldp);
+        break;
+    case PROP_AUTH_RETRIES:
+        g_value_set_int(value, priv->auth_retries);
+        break;
+    case PROP_MDNS:
+        g_value_set_int(value, priv->mdns);
+        break;
+    case PROP_LLMNR:
+        g_value_set_int(value, priv->llmnr);
+        break;
+    case PROP_WAIT_DEVICE_TIMEOUT:
+        g_value_set_int(value, priv->wait_device_timeout);
+        break;
+    case PROP_MUD_URL:
+        g_value_set_string(value, priv->mud_url);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+        break;
+    }
+}
+
+static void
+set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+    NMSettingConnectionPrivate *priv = NM_SETTING_CONNECTION_GET_PRIVATE(object);
+
+    switch (prop_id) {
+    case PROP_ID:
+        g_free(priv->id);
+        priv->id = g_value_dup_string(value);
+        break;
+    case PROP_UUID:
+        g_free(priv->uuid);
+        priv->uuid = g_value_dup_string(value);
+        break;
+    case PROP_STABLE_ID:
+        g_free(priv->stable_id);
+        priv->stable_id = g_value_dup_string(value);
+        break;
+    case PROP_INTERFACE_NAME:
+        g_free(priv->interface_name);
+        priv->interface_name = g_value_dup_string(value);
+        break;
+    case PROP_TYPE:
+        g_free(priv->type);
+        priv->type = g_value_dup_string(value);
+        break;
+    case PROP_PERMISSIONS:
+    {
+        const char *const *strv;
+        guint              i;
+
+        nm_clear_pointer(&priv->permissions, g_array_unref);
+        strv = g_value_get_boxed(value);
+        if (strv && strv[0]) {
+            priv->permissions =
+                g_array_sized_new(FALSE, FALSE, sizeof(Permission), NM_PTRARRAY_LEN(strv));
+            g_array_set_clear_func(priv->permissions, (GDestroyNotify) _permission_clear_stale);
+
+            for (i = 0; strv[i]; i++) {
+                Permission *permission = nm_g_array_append_new(priv->permissions, Permission);
+
+                _permission_set_stale_parse(permission, strv[i]);
+            }
+        }
+        break;
+    }
+    case PROP_AUTOCONNECT:
+        priv->autoconnect = g_value_get_boolean(value);
+        break;
+    case PROP_AUTOCONNECT_PRIORITY:
+        priv->autoconnect_priority = g_value_get_int(value);
+        break;
+    case PROP_AUTOCONNECT_RETRIES:
+        priv->autoconnect_retries = g_value_get_int(value);
+        break;
+    case PROP_MULTI_CONNECT:
+        priv->multi_connect = g_value_get_int(value);
+        break;
+    case PROP_TIMESTAMP:
+        priv->timestamp = g_value_get_uint64(value);
+        break;
+    case PROP_READ_ONLY:
+        priv->read_only = g_value_get_boolean(value);
+        break;
+    case PROP_ZONE:
+        g_free(priv->zone);
+        priv->zone = g_value_dup_string(value);
+        break;
+    case PROP_MASTER:
+        g_free(priv->master);
+        priv->master = g_value_dup_string(value);
+        break;
+    case PROP_SLAVE_TYPE:
+        g_free(priv->slave_type);
+        priv->slave_type = g_value_dup_string(value);
+        break;
+    case PROP_AUTOCONNECT_SLAVES:
+        priv->autoconnect_slaves = g_value_get_enum(value);
+        break;
+    case PROP_SECONDARIES:
+        nm_strvarray_set_strv(&priv->secondaries, g_value_get_boxed(value));
+        break;
+    case PROP_GATEWAY_PING_TIMEOUT:
+        priv->gateway_ping_timeout = g_value_get_uint(value);
+        break;
+    case PROP_METERED:
+        priv->metered = g_value_get_enum(value);
+        break;
+    case PROP_LLDP:
+        priv->lldp = g_value_get_int(value);
+        break;
+    case PROP_AUTH_RETRIES:
+        priv->auth_retries = g_value_get_int(value);
+        break;
+    case PROP_MDNS:
+        priv->mdns = g_value_get_int(value);
+        break;
+    case PROP_LLMNR:
+        priv->llmnr = g_value_get_int(value);
+        break;
+    case PROP_WAIT_DEVICE_TIMEOUT:
+        priv->wait_device_timeout = g_value_get_int(value);
+        break;
+    case PROP_MUD_URL:
+        g_free(priv->mud_url);
+        priv->mud_url = g_value_dup_string(value);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+        break;
+    }
+}
+
+/*****************************************************************************/
+
+static void
+nm_setting_connection_init(NMSettingConnection *setting)
+{
+    NMSettingConnectionPrivate *priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
+
+    priv->auth_retries         = -1;
+    priv->autoconnect          = TRUE;
+    priv->autoconnect_priority = NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY_DEFAULT;
+    priv->autoconnect_retries  = -1;
+    priv->autoconnect_slaves   = NM_SETTING_CONNECTION_AUTOCONNECT_SLAVES_DEFAULT;
+    priv->lldp                 = NM_SETTING_CONNECTION_LLDP_DEFAULT;
+    priv->llmnr                = NM_SETTING_CONNECTION_LLMNR_DEFAULT;
+    priv->mdns                 = NM_SETTING_CONNECTION_MDNS_DEFAULT;
+    priv->wait_device_timeout  = -1;
+}
+
+/**
+ * nm_setting_connection_new:
+ *
+ * Creates a new #NMSettingConnection object with default values.
+ *
+ * Returns: the new empty #NMSettingConnection object
+ **/
+NMSetting *
+nm_setting_connection_new(void)
+{
+    return g_object_new(NM_TYPE_SETTING_CONNECTION, NULL);
+}
+
+static void
+finalize(GObject *object)
+{
+    NMSettingConnectionPrivate *priv = NM_SETTING_CONNECTION_GET_PRIVATE(object);
+
+    g_free(priv->id);
+    g_free(priv->uuid);
+    g_free(priv->stable_id);
+    g_free(priv->interface_name);
+    g_free(priv->type);
+    g_free(priv->zone);
+    g_free(priv->master);
+    g_free(priv->slave_type);
+    g_free(priv->mud_url);
+    nm_clear_pointer(&priv->permissions, g_array_unref);
+    nm_clear_pointer(&priv->secondaries, g_array_unref);
+
+    G_OBJECT_CLASS(nm_setting_connection_parent_class)->finalize(object);
+}
+
+static void
+nm_setting_connection_class_init(NMSettingConnectionClass *klass)
+{
+    GObjectClass *  object_class        = G_OBJECT_CLASS(klass);
+    NMSettingClass *setting_class       = NM_SETTING_CLASS(klass);
+    GArray *        properties_override = _nm_sett_info_property_override_create_array();
+
+    g_type_class_add_private(klass, sizeof(NMSettingConnectionPrivate));
+
+    object_class->get_property = get_property;
+    object_class->set_property = set_property;
+    object_class->finalize     = finalize;
+
+    setting_class->verify           = verify;
+    setting_class->compare_property = compare_property;
+
+    /**
+     * NMSettingConnection:id:
+     *
+     * A human readable unique identifier for the connection, like "Work Wi-Fi"
+     * or "T-Mobile 3G".
+     **/
+    /* ---ifcfg-rh---
+     * property: id
+     * variable: NAME(+)
+     * description: User friendly name for the connection profile.
+     * ---end---
+     */
+    _nm_setting_property_define_string(properties_override,
+                                       obj_properties,
+                                       NM_SETTING_CONNECTION_ID,
+                                       PROP_ID,
+                                       NM_SETTING_PARAM_FUZZY_IGNORE,
+                                       nm_setting_connection_get_id);
+
+    /**
+     * NMSettingConnection:uuid:
+     *
+     * A universally unique identifier for the connection, for example generated
+     * with libuuid.  It should be assigned when the connection is created, and
+     * never changed as long as the connection still applies to the same
+     * network.  For example, it should not be changed when the
+     * #NMSettingConnection:id property or #NMSettingIP4Config changes, but
+     * might need to be re-created when the Wi-Fi SSID, mobile broadband network
+     * provider, or #NMSettingConnection:type property changes.
+     *
+     * The UUID must be in the format "2815492f-7e56-435e-b2e9-246bd7cdc664"
+     * (ie, contains only hexadecimal characters and "-").  A suitable UUID may
+     * be generated by nm_utils_uuid_generate() or
+     * nm_uuid_generate_from_string_str().
+     **/
+    /* ---ifcfg-rh---
+     * property: uuid
+     * variable: UUID(+)
+     * description: UUID for the connection profile. When missing, NetworkManager
+     *   creates the UUID itself (by hashing the filename).
+     * ---end---
+     */
+    _nm_setting_property_define_string(properties_override,
+                                       obj_properties,
+                                       NM_SETTING_CONNECTION_UUID,
+                                       PROP_UUID,
+                                       NM_SETTING_PARAM_FUZZY_IGNORE,
+                                       nm_setting_connection_get_uuid);
+
+    /**
+     * NMSettingConnection:stable-id:
+     *
+     * This represents the identity of the connection used for various purposes.
+     * It allows to configure multiple profiles to share the identity. Also,
+     * the stable-id can contain placeholders that are substituted dynamically and
+     * deterministically depending on the context.
+     *
+     * The stable-id is used for generating IPv6 stable private addresses
+     * with ipv6.addr-gen-mode=stable-privacy. It is also used to seed the
+     * generated cloned MAC address for ethernet.cloned-mac-address=stable
+     * and wifi.cloned-mac-address=stable. It is also used as DHCP client
+     * identifier with ipv4.dhcp-client-id=stable and to derive the DHCP
+     * DUID with ipv6.dhcp-duid=stable-[llt,ll,uuid].
+     *
+     * Note that depending on the context where it is used, other parameters are
+     * also seeded into the generation algorithm. For example, a per-host key
+     * is commonly also included, so that different systems end up generating
+     * different IDs. Or with ipv6.addr-gen-mode=stable-privacy, also the device's
+     * name is included, so that different interfaces yield different addresses.
+     * The per-host key is the identity of your machine and stored in /var/lib/NetworkManager/secret-key.
+     *
+     * The '$' character is treated special to perform dynamic substitutions
+     * at runtime. Currently, supported are "${CONNECTION}", "${DEVICE}", "${MAC}",
+     * "${BOOT}", "${RANDOM}".
+     * These effectively create unique IDs per-connection, per-device, per-boot,
+     * or every time. Note that "${DEVICE}" corresponds to the interface name of the
+     * device and "${MAC}" is the permanent MAC address of the device.
+     * Any unrecognized patterns following '$' are treated verbatim, however
+     * are reserved for future use. You are thus advised to avoid '$' or
+     * escape it as "$$".
+     * For example, set it to "${CONNECTION}-${BOOT}-${DEVICE}" to create a unique id for
+     * this connection that changes with every reboot and differs depending on the
+     * interface where the profile activates.
+     *
+     * If the value is unset, a global connection default is consulted. If the
+     * value is still unset, the default is similar to "${CONNECTION}" and uses
+     * a unique, fixed ID for the connection.
+     *
+     * Since: 1.4
+     **/
+    /* ---ifcfg-rh---
+     * property: stable-id
+     * variable: STABLE_ID(+)
+     * description: Token to generate stable IDs.
+     * ---end---
+     */
+    _nm_setting_property_define_string(properties_override,
+                                       obj_properties,
+                                       NM_SETTING_CONNECTION_STABLE_ID,
+                                       PROP_STABLE_ID,
+                                       NM_SETTING_PARAM_FUZZY_IGNORE,
+                                       nm_setting_connection_get_stable_id);
+
+    /**
+     * NMSettingConnection:interface-name:
+     *
+     * The name of the network interface this connection is bound to. If not
+     * set, then the connection can be attached to any interface of the
+     * appropriate type (subject to restrictions imposed by other settings).
+     *
+     * For software devices this specifies the name of the created device.
+     *
+     * For connection types where interface names cannot easily be made
+     * persistent (e.g. mobile broadband or USB Ethernet), this property should
+     * not be used. Setting this property restricts the interfaces a connection
+     * can be used with, and if interface names change or are reordered the
+     * connection may be applied to the wrong interface.
+     **/
+    /* ---ifcfg-rh---
+     * property: interface-name
+     * variable: DEVICE
+     * description: Interface name of the device this profile is bound to. The variable
+     *   can be left out when the profile should apply for more devices. Note that DEVICE
+     *   can be required for some connection types.
+     * ---end---
+     */
+    _nm_setting_property_define_string_full(
+        properties_override,
+        obj_properties,
+        NM_SETTING_CONNECTION_INTERFACE_NAME,
+        PROP_INTERFACE_NAME,
+        NM_SETTING_PARAM_INFERRABLE,
+        NM_SETT_INFO_PROPERT_TYPE_DBUS(G_VARIANT_TYPE_STRING,
+                                       .to_dbus_fcn = _nm_setting_property_to_dbus_fcn_get_string,
+                                       .missing_from_dbus_fcn =
+                                           nm_setting_connection_no_interface_name),
+        nm_setting_connection_get_interface_name);
+
+    /**
+     * NMSettingConnection:type:
+     *
+     * Base type of the connection. For hardware-dependent connections, should
+     * contain the setting name of the hardware-type specific setting (ie,
+     * "802-3-ethernet" or "802-11-wireless" or "bluetooth", etc), and for
+     * non-hardware dependent connections like VPN or otherwise, should contain
+     * the setting name of that setting type (ie, "vpn" or "bridge", etc).
+     **/
+    /* ---ifcfg-rh---
+     * property: type
+     * variable: TYPE (DEVICETYPE, DEVICE)
+     * values: Ethernet, Wireless, InfiniBand, Bridge, Bond, Vlan, Team, TeamPort
+     * description: Base type of the connection. DEVICETYPE is used for teaming
+     *   connections.
+     * example: TYPE=Ethernet; TYPE=Bond; TYPE=Bridge; DEVICETYPE=TeamPort
+     * ---end---
+     */
+    _nm_setting_property_define_string(properties_override,
+                                       obj_properties,
+                                       NM_SETTING_CONNECTION_TYPE,
+                                       PROP_TYPE,
+                                       NM_SETTING_PARAM_INFERRABLE,
+                                       nm_setting_connection_get_connection_type);
+
+    /**
+     * NMSettingConnection:permissions:
+     *
+     * An array of strings defining what access a given user has to this
+     * connection.  If this is %NULL or empty, all users are allowed to access
+     * this connection; otherwise users are allowed if and only if they are in
+     * this list.  When this is not empty, the connection can be active only when
+     * one of the specified users is logged into an active session.  Each entry
+     * is of the form "[type]:[id]:[reserved]"; for example, "user:dcbw:blah".
+     *
+     * At this time only the "user" [type] is allowed.  Any other values are
+     * ignored and reserved for future use.  [id] is the username that this
+     * permission refers to, which may not contain the ":" character. Any
+     * [reserved] information present must be ignored and is reserved for future
+     * use.  All of [type], [id], and [reserved] must be valid UTF-8.
+     */
+    /* ---ifcfg-rh---
+     * property: permissions
+     * variable: USERS(+)
+     * description: Restrict to certain users the access to this connection, and
+     *     allow the connection to be active only when at least one of the
+     *     specified users is logged into an active session.
+     * example: USERS="joe bob"
+     * ---end---
+     */
+    obj_properties[PROP_PERMISSIONS] =
+        g_param_spec_boxed(NM_SETTING_CONNECTION_PERMISSIONS,
+                           "",
+                           "",
+                           G_TYPE_STRV,
+                           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:autoconnect:
+     *
+     * Whether or not the connection should be automatically connected by
+     * NetworkManager when the resources for the connection are available.
+     * %TRUE to automatically activate the connection, %FALSE to require manual
+     * intervention to activate the connection.
+     *
+     * Note that autoconnect is not implemented for VPN profiles. See
+     * #NMSettingConnection:secondaries as an alternative to automatically
+     * connect VPN profiles.
+     **/
+    /* ---ifcfg-rh---
+     * property: autoconnect
+     * variable: ONBOOT
+     * default: yes
+     * description: Whether the connection should be autoconnected (not only while booting).
+     * ---end---
+     */
+    _nm_setting_property_define_boolean(properties_override,
+                                        obj_properties,
+                                        NM_SETTING_CONNECTION_AUTOCONNECT,
+                                        PROP_AUTOCONNECT,
+                                        TRUE,
+                                        NM_SETTING_PARAM_FUZZY_IGNORE,
+                                        nm_setting_connection_get_autoconnect);
+
+    /**
+     * NMSettingConnection:autoconnect-priority:
+     *
+     * The autoconnect priority. If the connection is set to autoconnect,
+     * connections with higher priority will be preferred. Defaults to 0.
+     * The higher number means higher priority.
+     **/
+    /* ---ifcfg-rh---
+     * property: autoconnect-priority
+     * variable: AUTOCONNECT_PRIORITY(+)
+     * values: -999 to 999
+     * default: 0
+     * description: Connection priority for automatic activation. Connections with
+     *  higher numbers are preferred when selecting profiles for automatic activation.
+     * example: AUTOCONNECT_PRIORITY=20
+     * ---end---
+     */
+    obj_properties[PROP_AUTOCONNECT_PRIORITY] = g_param_spec_int(
+        NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY,
+        "",
+        "",
+        NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY_MIN,
+        NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY_MAX,
+        NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY_DEFAULT,
+        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:autoconnect-retries:
+     *
+     * The number of times a connection should be tried when autoactivating before
+     * giving up. Zero means forever, -1 means the global default (4 times if not
+     * overridden). Setting this to 1 means to try activation only once before
+     * blocking autoconnect. Note that after a timeout, NetworkManager will try
+     * to autoconnect again.
+     */
+    /* ---ifcfg-rh---
+     * property: autoconnect-retries
+     * variable: AUTOCONNECT_RETRIES(+)
+     * description: The number of times a connection should be autoactivated
+     * before giving up and switching to the next one.
+     * values: -1 (use global default), 0 (forever) or a positive value
+     * example: AUTOCONNECT_RETRIES=1
+     * ---end---
+     */
+    obj_properties[PROP_AUTOCONNECT_RETRIES] = g_param_spec_int(
+        NM_SETTING_CONNECTION_AUTOCONNECT_RETRIES,
+        "",
+        "",
+        -1,
+        G_MAXINT32,
+        -1,
+        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:multi-connect:
+     *
+     * Specifies whether the profile can be active multiple times at a particular
+     * moment. The value is of type #NMConnectionMultiConnect.
+     *
+     * Since: 1.14
+     */
+    /* ---ifcfg-rh---
+     * property: multi-connect
+     * variable: MULTI_CONNECT(+)
+     * description: whether the profile can be active on multiple devices at a given
+     *   moment. The values are numbers corresponding to #NMConnectionMultiConnect enum.
+     * example: MULTI_CONNECT=3
+     * ---end---
+     */
+    obj_properties[PROP_MULTI_CONNECT] = g_param_spec_int(
+        NM_SETTING_CONNECTION_MULTI_CONNECT,
+        "",
+        "",
+        G_MININT32,
+        G_MAXINT32,
+        NM_CONNECTION_MULTI_CONNECT_DEFAULT,
+        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:timestamp:
+     *
+     * The time, in seconds since the Unix Epoch, that the connection was last
+     * _successfully_ fully activated.
+     *
+     * NetworkManager updates the connection timestamp periodically when the
+     * connection is active to ensure that an active connection has the latest
+     * timestamp. The property is only meant for reading (changes to this
+     * property will not be preserved).
+     **/
+    obj_properties[PROP_TIMESTAMP] = g_param_spec_uint64(
+        NM_SETTING_CONNECTION_TIMESTAMP,
+        "",
+        "",
+        0,
+        G_MAXUINT64,
+        0,
+        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);
+    _nm_properties_override_gobj(
+        properties_override,
+        obj_properties[PROP_TIMESTAMP],
+        NM_SETT_INFO_PROPERT_TYPE_DBUS(G_VARIANT_TYPE_UINT64,
+                                       .to_dbus_fcn = _to_dbus_fcn_timestamp, ));
+
+    /**
+     * NMSettingConnection:read-only:
+     *
+     * %FALSE if the connection can be modified using the provided settings
+     * service's D-Bus interface with the right privileges, or %TRUE if the
+     * connection is read-only and cannot be modified.
+     **/
+    _nm_setting_property_define_boolean(properties_override,
+                                        obj_properties,
+                                        NM_SETTING_CONNECTION_READ_ONLY,
+                                        PROP_READ_ONLY,
+                                        FALSE,
+                                        NM_SETTING_PARAM_FUZZY_IGNORE,
+                                        nm_setting_connection_get_read_only);
+
+    /**
+     * NMSettingConnection:zone:
+     *
+     * The trust level of a the connection.  Free form case-insensitive string
+     * (for example "Home", "Work", "Public").  %NULL or unspecified zone means
+     * the connection will be placed in the default zone as defined by the
+     * firewall.
+     *
+     * When updating this property on a currently activated connection,
+     * the change takes effect immediately.
+     **/
+    /* ---ifcfg-rh---
+     * property: zone
+     * variable: ZONE(+)
+     * description: Trust level of this connection. The string is usually used
+     *   for a firewall.
+     * example: ZONE=Work
+     * ---end---
+     */
+    _nm_setting_property_define_string(properties_override,
+                                       obj_properties,
+                                       NM_SETTING_CONNECTION_ZONE,
+                                       PROP_ZONE,
+                                       NM_SETTING_PARAM_FUZZY_IGNORE
+                                           | NM_SETTING_PARAM_REAPPLY_IMMEDIATELY,
+                                       nm_setting_connection_get_zone);
+
+    /**
+     * NMSettingConnection:master:
+     *
+     * Interface name of the master device or UUID of the master connection.
+     **/
+    /* ---ifcfg-rh---
+     * property: master
+     * variable: MASTER, MASTER_UUID, TEAM_MASTER, TEAM_MASTER_UUID, BRIDGE, BRIDGE_UUID
+     * description: Reference to master connection. The variable used depends on
+     *   the connection type and the value. In general, if the *_UUID variant is present,
+     *   the variant without *_UUID is ignored. NetworkManager attempts to write both
+     *   for compatibility with legacy tooling.
+     * ---end---
+     */
+    _nm_setting_property_define_string(properties_override,
+                                       obj_properties,
+                                       NM_SETTING_CONNECTION_MASTER,
+                                       PROP_MASTER,
+                                       NM_SETTING_PARAM_FUZZY_IGNORE | NM_SETTING_PARAM_INFERRABLE,
+                                       nm_setting_connection_get_master);
+
+    /**
+     * NMSettingConnection:slave-type:
+     *
+     * Setting name of the device type of this slave's master connection (eg,
+     * %NM_SETTING_BOND_SETTING_NAME), or %NULL if this connection is not a
+     * slave.
+     **/
+    /* ---ifcfg-rh---
+     * property: slave-type
+     * variable: MASTER, MASTER_UUID, TEAM_MASTER, TEAM_MASTER_UUID, DEVICETYPE,
+     *   BRIDGE, BRIDGE_UUID
+     * description: Slave type doesn't map directly to a variable, but it is
+     *   recognized using different variables.  MASTER and MASTER_UUID for bonding,
+     *   TEAM_MASTER, TEAM_MASTER_UUID and DEVICETYPE for teaming, BRIDGE
+     *   and BRIDGE_UUID for bridging.
+     * ---end---
+     */
+    _nm_setting_property_define_string(properties_override,
+                                       obj_properties,
+                                       NM_SETTING_CONNECTION_SLAVE_TYPE,
+                                       PROP_SLAVE_TYPE,
+                                       NM_SETTING_PARAM_FUZZY_IGNORE | NM_SETTING_PARAM_INFERRABLE,
+                                       nm_setting_connection_get_slave_type);
+
+    /**
+     * NMSettingConnection:autoconnect-slaves:
+     *
+     * Whether or not slaves of this connection should be automatically brought up
+     * when NetworkManager activates this connection. This only has a real effect
+     * for master connections. The properties #NMSettingConnection:autoconnect,
+     * #NMSettingConnection:autoconnect-priority and #NMSettingConnection:autoconnect-retries
+     * are unrelated to this setting.
+     * The permitted values are: 0: leave slave connections untouched,
+     * 1: activate all the slave connections with this connection, -1: default.
+     * If -1 (default) is set, global connection.autoconnect-slaves is read to
+     * determine the real value. If it is default as well, this fallbacks to 0.
+     *
+     * Since: 1.2
+     **/
+    /* ---ifcfg-rh---
+     * property: autoconnect-slaves
+     * variable: AUTOCONNECT_SLAVES(+)
+     * default: missing variable means global default
+     * description: Whether slaves of this connection should be auto-connected
+     *   when this connection is activated.
+     * ---end---
+     */
+    obj_properties[PROP_AUTOCONNECT_SLAVES] = g_param_spec_enum(
+        NM_SETTING_CONNECTION_AUTOCONNECT_SLAVES,
+        "",
+        "",
+        NM_TYPE_SETTING_CONNECTION_AUTOCONNECT_SLAVES,
+        NM_SETTING_CONNECTION_AUTOCONNECT_SLAVES_DEFAULT,
+        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:secondaries:
+     *
+     * List of connection UUIDs that should be activated when the base
+     * connection itself is activated. Currently, only VPN connections are
+     * supported.
+     **/
+    /* ---ifcfg-rh---
+     * property: secondaries
+     * variable: SECONDARY_UUIDS(+)
+     * description: UUID of VPN connections that should be activated
+     *   together with this connection.
+     * ---end---
+     */
+    obj_properties[PROP_SECONDARIES] = g_param_spec_boxed(
+        NM_SETTING_CONNECTION_SECONDARIES,
+        "",
+        "",
+        G_TYPE_STRV,
+        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:gateway-ping-timeout:
+     *
+     * If greater than zero, delay success of IP addressing until either the
+     * timeout is reached, or an IP gateway replies to a ping.
+     **/
+    /* ---ifcfg-rh---
+     * property: gateway-ping-timeout
+     * variable: GATEWAY_PING_TIMEOUT(+)
+     * default: 0
+     * description: If greater than zero, the IP connectivity will be checked by
+     *   pinging the gateway and waiting for the specified timeout (in seconds).
+     * example: GATEWAY_PING_TIMEOUT=5
+     * ---end---
+     */
+    obj_properties[PROP_GATEWAY_PING_TIMEOUT] =
+        g_param_spec_uint(NM_SETTING_CONNECTION_GATEWAY_PING_TIMEOUT,
+                          "",
+                          "",
+                          0,
+                          600,
+                          0,
+                          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:metered:
+     *
+     * Whether the connection is metered.
+     *
+     * When updating this property on a currently activated connection,
+     * the change takes effect immediately.
+     *
+     * Since: 1.2
+     **/
+    /* ---ifcfg-rh---
+     * property: metered
+     * variable: CONNECTION_METERED(+)
+     * values: yes,no,unknown
+     * description: Whether the device is metered
+     * example: CONNECTION_METERED=yes
+     * ---end---
+     */
+    obj_properties[PROP_METERED] = g_param_spec_enum(
+        NM_SETTING_CONNECTION_METERED,
+        "",
+        "",
+        NM_TYPE_METERED,
+        NM_METERED_UNKNOWN,
+        G_PARAM_READWRITE | NM_SETTING_PARAM_REAPPLY_IMMEDIATELY | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:lldp:
+     *
+     * Whether LLDP is enabled for the connection.
+     *
+     * Since: 1.2
+     **/
+    /* ---ifcfg-rh---
+     * property: lldp
+     * variable: LLDP(+)
+     * values: boolean value or 'rx'
+     * default: missing variable means global default
+     * description: whether LLDP is enabled for the connection
+     * example: LLDP=no
+     * ---end---
+     */
+    obj_properties[PROP_LLDP] = g_param_spec_int(NM_SETTING_CONNECTION_LLDP,
+                                                 "",
+                                                 "",
+                                                 G_MININT32,
+                                                 G_MAXINT32,
+                                                 NM_SETTING_CONNECTION_LLDP_DEFAULT,
+                                                 NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_READWRITE
+                                                     | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:auth-retries:
+     *
+     * The number of retries for the authentication. Zero means to try indefinitely; -1 means
+     * to use a global default. If the global default is not set, the authentication
+     * retries for 3 times before failing the connection.
+     *
+     * Currently, this only applies to 802-1x authentication.
+     *
+     * Since: 1.10
+     **/
+    /* ---ifcfg-rh---
+     * property: auth-retries
+     * variable: AUTH_RETRIES(+)
+     * default: 0
+     * description: Number of retries for authentication.
+     * ---end---
+     */
+    obj_properties[PROP_AUTH_RETRIES] = g_param_spec_int(
+        NM_SETTING_CONNECTION_AUTH_RETRIES,
+        "",
+        "",
+        -1,
+        G_MAXINT32,
+        -1,
+        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:mdns:
+     *
+     * Whether mDNS is enabled for the connection.
+     *
+     * The permitted values are: "yes" (2) register hostname and resolving
+     * for the connection, "no" (0) disable mDNS for the interface, "resolve"
+     * (1) do not register hostname but allow resolving of mDNS host names
+     * and "default" (-1) to allow lookup of a global default in NetworkManager.conf.
+     * If unspecified, "default" ultimately depends on the DNS plugin (which
+     * for systemd-resolved currently means "no").
+     *
+     * This feature requires a plugin which supports mDNS. Otherwise, the
+     * setting has no effect. One such plugin is dns-systemd-resolved.
+*
+     * Since: 1.12
+     **/
+    /* ---ifcfg-rh---
+     * property: mdns
+     * variable: MDNS(+)
+     * values: yes,no,resolve
+     * default: missing variable means global default
+     * description: Whether or not mDNS is enabled for the connection
+     * example: MDNS=yes
+     * ---end---
+     */
+    obj_properties[PROP_MDNS] = g_param_spec_int(NM_SETTING_CONNECTION_MDNS,
+                                                 "",
+                                                 "",
+                                                 G_MININT32,
+                                                 G_MAXINT32,
+                                                 NM_SETTING_CONNECTION_MDNS_DEFAULT,
+                                                 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:llmnr:
+     *
+     * Whether Link-Local Multicast Name Resolution (LLMNR) is enabled
+     * for the connection. LLMNR is a protocol based on the Domain Name
+     * System (DNS) packet format that allows both IPv4 and IPv6 hosts
+     * to perform name resolution for hosts on the same local link.
+     *
+     * The permitted values are: "yes" (2) register hostname and resolving
+     * for the connection, "no" (0) disable LLMNR for the interface, "resolve"
+     * (1) do not register hostname but allow resolving of LLMNR host names
+     * If unspecified, "default" ultimately depends on the DNS plugin (which
+     * for systemd-resolved currently means "yes").
+     *
+     * This feature requires a plugin which supports LLMNR. Otherwise, the
+     * setting has no effect. One such plugin is dns-systemd-resolved.
+     *
+     * Since: 1.14
+     **/
+    /* ---ifcfg-rh---
+     * property: llmnr
+     * variable: LLMNR(+)
+     * values: yes,no,resolve
+     * default: missing variable means global default
+     * description: Whether or not LLMNR is enabled for the connection
+     * example: LLMNR=yes
+     * ---end---
+     */
+    obj_properties[PROP_LLMNR] = g_param_spec_int(NM_SETTING_CONNECTION_LLMNR,
+                                                  "",
+                                                  "",
+                                                  G_MININT32,
+                                                  G_MAXINT32,
+                                                  NM_SETTING_CONNECTION_LLMNR_DEFAULT,
+                                                  G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:wait-device-timeout:
+     *
+     * Timeout in milliseconds to wait for device at startup.
+     * During boot, devices may take a while to be detected by the driver.
+     * This property will cause to delay NetworkManager-wait-online.service
+     * and nm-online to give the device a chance to appear. This works by
+     * waiting for the given timeout until a compatible device for the
+     * profile is available and managed.
+     *
+     * The value 0 means no wait time. The default value is -1, which
+     * currently has the same meaning as no wait time.
+     *
+     * Since: 1.20
+     **/
+    /* ---ifcfg-rh---
+     * property: wait-device-timeout
+     * variable: DEVTIMEOUT(+)
+     * values: timeout in seconds.
+     * description: for initscripts compatibility, this variable must be
+     *   a whole integer. If necessary, NetworkManager stores also a fractional
+     *   component for the milliseconds.
+     * example: DEVTIMEOUT=5
+     * ---end---
+     */
+    obj_properties[PROP_WAIT_DEVICE_TIMEOUT] =
+        g_param_spec_int(NM_SETTING_CONNECTION_WAIT_DEVICE_TIMEOUT,
+                         "",
+                         "",
+                         -1,
+                         G_MAXINT32,
+                         -1,
+                         G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMSettingConnection:mud-url:
+     *
+     * If configured, set to a Manufacturer Usage Description (MUD) URL that points
+     * to manufacturer-recommended network policies for IoT devices. It is transmitted
+     * as a DHCPv4 or DHCPv6 option. The value must be a valid URL starting with "https://".
+     *
+     * The special value "none" is allowed to indicate that no MUD URL is used.
+     *
+     * If the per-profile value is unspecified (the default), a global connection default gets
+     * consulted. If still unspecified, the ultimate default is "none".
+     *
+     * Since: 1.26
+     **/
+    /* ---ifcfg-rh---
+     * property: mud-url
+     * variable: MUD_URL
+     * values: a valid URL that points to recommended policy for this device
+     * description: MUD_URL to be sent by device (See RFC 8520).
+     * example: https://yourdevice.example.com/model.json
+     * ---end---
+     */
+    _nm_setting_property_define_string(properties_override,
+                                       obj_properties,
+                                       NM_SETTING_CONNECTION_MUD_URL,
+                                       PROP_MUD_URL,
+                                       NM_SETTING_PARAM_NONE,
+                                       nm_setting_connection_get_mud_url);
+
+    g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);
+
+    _nm_setting_class_commit_full(setting_class,
+                                  NM_META_SETTING_TYPE_CONNECTION,
+                                  NULL,
+                                  properties_override);
+}