/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2007 - 2013 Red Hat, Inc.
 * Copyright (C) 2007 - 2008 Novell, Inc.
 */

#include "libnm-core/nm-default-libnm-core.h"

#include "nm-setting-connection.h"

#include "nm-libnm-core-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 "systemd/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;
    GSList *secondaries; /* secondary connections to activate with the base connection */
    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;

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;
}

/**
 * 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 g_slist_length(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
 *
 * Returns: the secondary connection UUID at index @idx
 **/
const char *
nm_setting_connection_get_secondary(NMSettingConnection *setting, guint32 idx)
{
    NMSettingConnectionPrivate *priv;

    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), NULL);

    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
    g_return_val_if_fail(idx <= g_slist_length(priv->secondaries), NULL);

    return (const char *) g_slist_nth_data(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;
    GSList *                    iter;

    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
    g_return_val_if_fail(sec_uuid != NULL, FALSE);
    g_return_val_if_fail(sec_uuid[0] != '\0', FALSE);

    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
    for (iter = priv->secondaries; iter; iter = g_slist_next(iter)) {
        if (!strcmp(sec_uuid, (char *) iter->data))
            return FALSE;
    }

    priv->secondaries = g_slist_append(priv->secondaries, g_strdup(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;
    GSList *                    elt;

    g_return_if_fail(NM_IS_SETTING_CONNECTION(setting));

    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
    elt  = g_slist_nth(priv->secondaries, idx);
    g_return_if_fail(elt != NULL);

    g_free(elt->data);
    priv->secondaries = g_slist_delete_link(priv->secondaries, elt);
    _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;
    GSList *                    iter;

    g_return_val_if_fail(NM_IS_SETTING_CONNECTION(setting), FALSE);
    g_return_val_if_fail(sec_uuid != NULL, FALSE);
    g_return_val_if_fail(sec_uuid[0] != '\0', FALSE);

    priv = NM_SETTING_CONNECTION_GET_PRIVATE(setting);
    for (iter = priv->secondaries; iter; iter = g_slist_next(iter)) {
        if (!strcmp(sec_uuid, (char *) iter->data)) {
            priv->secondaries = g_slist_delete_link(priv->secondaries, iter);
            _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;

    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_utils_is_uuid(priv->uuid)) {
        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;
        }
    }

    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_utils_slist_to_strv(priv->secondaries, TRUE));
        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:
        g_slist_free_full(priv->secondaries, g_free);
        priv->secondaries = _nm_utils_strv_to_slist(g_value_get_boxed(value), TRUE);
        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);
    g_slist_free_full(priv->secondaries, g_free);

    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---
     */
    obj_properties[PROP_ID] = g_param_spec_string(NM_SETTING_CONNECTION_ID,
                                                  "",
                                                  "",
                                                  NULL,
                                                  G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE
                                                      | G_PARAM_STATIC_STRINGS);

    /**
     * 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_utils_uuid_generate_from_string().
     **/
    /* ---ifcfg-rh---
     * property: uuid
     * variable: UUID(+)
     * description: UUID for the connection profile. When missing, NetworkManager
     *   creates the UUID itself (by hashing the filename).
     * ---end---
     */
    obj_properties[PROP_UUID] = g_param_spec_string(
        NM_SETTING_CONNECTION_UUID,
        "",
        "",
        NULL,
        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);

    /**
     * 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---
     */
    obj_properties[PROP_STABLE_ID] = g_param_spec_string(
        NM_SETTING_CONNECTION_STABLE_ID,
        "",
        "",
        NULL,
        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);

    /**
     * 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---
     */
    obj_properties[PROP_INTERFACE_NAME] = g_param_spec_string(
        NM_SETTING_CONNECTION_INTERFACE_NAME,
        "",
        "",
        NULL,
        G_PARAM_READWRITE | NM_SETTING_PARAM_INFERRABLE | G_PARAM_STATIC_STRINGS);
    _nm_properties_override_gobj(
        properties_override,
        obj_properties[PROP_INTERFACE_NAME],
        NM_SETT_INFO_PROPERT_TYPE(.dbus_type = G_VARIANT_TYPE_STRING,
                                  .missing_from_dbus_fcn =
                                      nm_setting_connection_no_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---
     */
    obj_properties[PROP_TYPE] = g_param_spec_string(NM_SETTING_CONNECTION_TYPE,
                                                    "",
                                                    "",
                                                    NULL,
                                                    G_PARAM_READWRITE | NM_SETTING_PARAM_INFERRABLE
                                                        | G_PARAM_STATIC_STRINGS);

    /**
     * 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---
     */
    obj_properties[PROP_AUTOCONNECT] = g_param_spec_boolean(
        NM_SETTING_CONNECTION_AUTOCONNECT,
        "",
        "",
        TRUE,
        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);

    /**
     * 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_type   = 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.
     **/
    obj_properties[PROP_READ_ONLY] = g_param_spec_boolean(
        NM_SETTING_CONNECTION_READ_ONLY,
        "",
        "",
        FALSE,
        G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE | G_PARAM_STATIC_STRINGS);

    /**
     * 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---
     */
    obj_properties[PROP_ZONE] =
        g_param_spec_string(NM_SETTING_CONNECTION_ZONE,
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE
                                | NM_SETTING_PARAM_REAPPLY_IMMEDIATELY | G_PARAM_STATIC_STRINGS);

    /**
     * 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---
     */
    obj_properties[PROP_MASTER] =
        g_param_spec_string(NM_SETTING_CONNECTION_MASTER,
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE
                                | NM_SETTING_PARAM_INFERRABLE | G_PARAM_STATIC_STRINGS);

    /**
     * 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---
     */
    obj_properties[PROP_SLAVE_TYPE] =
        g_param_spec_string(NM_SETTING_CONNECTION_SLAVE_TYPE,
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | NM_SETTING_PARAM_FUZZY_IGNORE
                                | NM_SETTING_PARAM_INFERRABLE | G_PARAM_STATIC_STRINGS);

    /**
     * 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---
     */
    obj_properties[PROP_MUD_URL] = g_param_spec_string(NM_SETTING_CONNECTION_MUD_URL,
                                                       "",
                                                       "",
                                                       NULL,
                                                       G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);

    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);
}
