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

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

#include "nm-setting-dcb.h"

#include "nm-utils.h"
#include "nm-utils-private.h"
#include "nm-setting-private.h"
#include "nm-core-enum-types.h"

/**
 * SECTION:nm-setting-dcb
 * @short_description: Connection properties for Data Center Bridging
 *
 * The #NMSettingDcb object is a #NMSetting subclass that describes properties
 * for enabling and using Data Center Bridging (DCB) on Ethernet networks.
 * DCB is a set of protocols (including 802.1Qbb, 802.1Qaz, 802.1Qau, and
 * 802.1AB) to eliminate packet loss in Ethernet networks and support the use
 * of storage technologies like Fibre Channel over Ethernet (FCoE) and iSCSI.
 **/

/*****************************************************************************/

NM_GOBJECT_PROPERTIES_DEFINE(NMSettingDcb,

                             PROP_APP_FCOE_FLAGS,
                             PROP_APP_FCOE_PRIORITY,
                             PROP_APP_FCOE_MODE,

                             PROP_APP_ISCSI_FLAGS,
                             PROP_APP_ISCSI_PRIORITY,

                             PROP_APP_FIP_FLAGS,
                             PROP_APP_FIP_PRIORITY,

                             PROP_PFC_FLAGS,
                             PROP_PRIORITY_FLOW_CONTROL,

                             PROP_PRIORITY_GROUP_FLAGS,
                             PROP_PRIORITY_GROUP_ID,
                             PROP_PRIORITY_GROUP_BANDWIDTH,
                             PROP_PRIORITY_BANDWIDTH,
                             PROP_PRIORITY_STRICT_BANDWIDTH,
                             PROP_PRIORITY_TRAFFIC_CLASS, );

typedef struct {
    char  *app_fcoe_mode;
    guint  pfc[8];
    guint  priority_group_id[8];
    guint  priority_group_bandwidth[8];
    guint  priority_bandwidth[8];
    guint  priority_strict[8];
    guint  priority_traffic_class[8];
    guint  app_fcoe_flags;
    guint  app_iscsi_flags;
    guint  app_fip_flags;
    guint  pfc_flags;
    guint  priority_group_flags;
    gint32 app_fcoe_priority;
    gint32 app_iscsi_priority;
    gint32 app_fip_priority;
} NMSettingDcbPrivate;

/**
 * NMSettingDcb:
 *
 * Data Center Bridging Settings
 */
struct _NMSettingDcb {
    NMSetting parent;
    /* In the past, this struct was public API. Preserve ABI! */
};

struct _NMSettingDcbClass {
    NMSettingClass parent;
    /* In the past, this struct was public API. Preserve ABI! */
    gpointer padding[4];
};

G_DEFINE_TYPE(NMSettingDcb, nm_setting_dcb, NM_TYPE_SETTING)

#define NM_SETTING_DCB_GET_PRIVATE(o) \
    (G_TYPE_INSTANCE_GET_PRIVATE((o), NM_TYPE_SETTING_DCB, NMSettingDcbPrivate))

/*****************************************************************************/

/**
 * nm_setting_dcb_get_app_fcoe_flags:
 * @setting: the #NMSettingDcb
 *
 * Returns: the #NMSettingDcb:app-fcoe-flags property of the setting
 **/
NMSettingDcbFlags
nm_setting_dcb_get_app_fcoe_flags(NMSettingDcb *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->app_fcoe_flags;
}

/**
 * nm_setting_dcb_get_app_fcoe_priority:
 * @setting: the #NMSettingDcb
 *
 * Returns: the #NMSettingDcb:app-fcoe-priority property of the setting
 **/
int
nm_setting_dcb_get_app_fcoe_priority(NMSettingDcb *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->app_fcoe_priority;
}

/**
 * nm_setting_dcb_get_app_fcoe_mode:
 * @setting: the #NMSettingDcb
 *
 * Returns: the #NMSettingDcb:app-fcoe-mode property of the setting
 **/
const char *
nm_setting_dcb_get_app_fcoe_mode(NMSettingDcb *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), NULL);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->app_fcoe_mode;
}

/**
 * nm_setting_dcb_get_app_iscsi_flags:
 * @setting: the #NMSettingDcb
 *
 * Returns: the #NMSettingDcb:app-iscsi-flags property of the setting
 **/
NMSettingDcbFlags
nm_setting_dcb_get_app_iscsi_flags(NMSettingDcb *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->app_iscsi_flags;
}

/**
 * nm_setting_dcb_get_app_iscsi_priority:
 * @setting: the #NMSettingDcb
 *
 * Returns: the #NMSettingDcb:app-iscsi-priority property of the setting
 **/
int
nm_setting_dcb_get_app_iscsi_priority(NMSettingDcb *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->app_iscsi_priority;
}

/**
 * nm_setting_dcb_get_app_fip_flags:
 * @setting: the #NMSettingDcb
 *
 * Returns: the #NMSettingDcb:app-fip-flags property of the setting
 **/
NMSettingDcbFlags
nm_setting_dcb_get_app_fip_flags(NMSettingDcb *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->app_fip_flags;
}

/**
 * nm_setting_dcb_get_app_fip_priority:
 * @setting: the #NMSettingDcb
 *
 * Returns: the #NMSettingDcb:app-fip-priority property of the setting
 **/
int
nm_setting_dcb_get_app_fip_priority(NMSettingDcb *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->app_fip_priority;
}

/**
 * nm_setting_dcb_get_priority_flow_control_flags:
 * @setting: the #NMSettingDcb
 *
 * Returns: the #NMSettingDcb:priority-flow-control-flags property of the setting
 **/
NMSettingDcbFlags
nm_setting_dcb_get_priority_flow_control_flags(NMSettingDcb *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->pfc_flags;
}

/**
 * nm_setting_dcb_get_priority_flow_control:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to retrieve flow control for
 *
 * Returns: %TRUE if flow control is enabled for the given @user_priority,
 * %FALSE if not enabled
 **/
gboolean
nm_setting_dcb_get_priority_flow_control(NMSettingDcb *setting, guint user_priority)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), FALSE);
    g_return_val_if_fail(user_priority <= 7, FALSE);

    return !!NM_SETTING_DCB_GET_PRIVATE(setting)->pfc[user_priority];
}

/**
 * nm_setting_dcb_set_priority_flow_control:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to set flow control for
 * @enabled: %TRUE to enable flow control for this priority, %FALSE to disable it
 *
 * These values are only valid when #NMSettingDcb:priority-flow-control includes
 * the %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
void
nm_setting_dcb_set_priority_flow_control(NMSettingDcb *setting,
                                         guint         user_priority,
                                         gboolean      enabled)
{
    NMSettingDcbPrivate *priv;
    guint                uint_enabled = enabled ? 1 : 0;

    g_return_if_fail(NM_IS_SETTING_DCB(setting));
    g_return_if_fail(user_priority <= 7);

    priv = NM_SETTING_DCB_GET_PRIVATE(setting);
    if (priv->pfc[user_priority] != uint_enabled) {
        priv->pfc[user_priority] = uint_enabled;
        _notify(setting, PROP_PRIORITY_FLOW_CONTROL);
    }
}

/**
 * nm_setting_dcb_get_priority_group_flags:
 * @setting: the #NMSettingDcb
 *
 * Returns: the #NMSettingDcb:priority-group-flags property of the setting
 **/
NMSettingDcbFlags
nm_setting_dcb_get_priority_group_flags(NMSettingDcb *setting)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->priority_group_flags;
}

/**
 * nm_setting_dcb_get_priority_group_id:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to retrieve the group ID for
 *
 * Returns: the group number @user_priority is assigned to.  These values are
 * only valid when #NMSettingDcb:priority-group-flags includes the
 * %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
guint
nm_setting_dcb_get_priority_group_id(NMSettingDcb *setting, guint user_priority)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);
    g_return_val_if_fail(user_priority <= 7, 0);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->priority_group_id[user_priority];
}

/**
 * nm_setting_dcb_set_priority_group_id:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to set flow control for
 * @group_id: the group (0 - 7) to assign @user_priority to, or 15 for the
 * unrestricted group.
 *
 * These values are only valid when #NMSettingDcb:priority-group-flags includes
 * the %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
void
nm_setting_dcb_set_priority_group_id(NMSettingDcb *setting, guint user_priority, guint group_id)
{
    NMSettingDcbPrivate *priv;

    g_return_if_fail(NM_IS_SETTING_DCB(setting));
    g_return_if_fail(user_priority <= 7);
    g_return_if_fail(group_id <= 7 || group_id == 15);

    priv = NM_SETTING_DCB_GET_PRIVATE(setting);
    if (priv->priority_group_id[user_priority] != group_id) {
        priv->priority_group_id[user_priority] = group_id;
        _notify(setting, PROP_PRIORITY_GROUP_ID);
    }
}

/**
 * nm_setting_dcb_get_priority_group_bandwidth:
 * @setting: the #NMSettingDcb
 * @group_id: the priority group (0 - 7) to retrieve the bandwidth percentage for
 *
 * Returns: the bandwidth percentage assigned to @group_id.  These values are
 * only valid when #NMSettingDcb:priority-group-flags includes the
 * %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
guint
nm_setting_dcb_get_priority_group_bandwidth(NMSettingDcb *setting, guint group_id)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);
    g_return_val_if_fail(group_id <= 7, FALSE);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->priority_group_bandwidth[group_id];
}

/**
 * nm_setting_dcb_set_priority_group_bandwidth:
 * @setting: the #NMSettingDcb
 * @group_id: the priority group (0 - 7) to set the bandwidth percentage for
 * @bandwidth_percent: the bandwidth percentage (0 - 100) to assign to @group_id to
 *
 * These values are only valid when #NMSettingDcb:priority-group-flags includes
 * the %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
void
nm_setting_dcb_set_priority_group_bandwidth(NMSettingDcb *setting,
                                            guint         group_id,
                                            guint         bandwidth_percent)
{
    NMSettingDcbPrivate *priv;

    g_return_if_fail(NM_IS_SETTING_DCB(setting));
    g_return_if_fail(group_id <= 7);
    g_return_if_fail(bandwidth_percent <= 100);

    priv = NM_SETTING_DCB_GET_PRIVATE(setting);
    if (priv->priority_group_bandwidth[group_id] != bandwidth_percent) {
        priv->priority_group_bandwidth[group_id] = bandwidth_percent;
        _notify(setting, PROP_PRIORITY_GROUP_BANDWIDTH);
    }
}

/**
 * nm_setting_dcb_get_priority_bandwidth:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to retrieve the group bandwidth percentage for
 *
 * Returns: the allowed bandwidth percentage of @user_priority in its priority group.
 * These values are only valid when #NMSettingDcb:priority-group-flags includes the
 * %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
guint
nm_setting_dcb_get_priority_bandwidth(NMSettingDcb *setting, guint user_priority)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);
    g_return_val_if_fail(user_priority <= 7, FALSE);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->priority_bandwidth[user_priority];
}

/**
 * nm_setting_dcb_set_priority_bandwidth:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to set the bandwidth percentage for
 * @bandwidth_percent: the bandwidth percentage (0 - 100) that @user_priority is
 * allowed to use within its priority group
 *
 * These values are only valid when #NMSettingDcb:priority-group-flags includes
 * the %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
void
nm_setting_dcb_set_priority_bandwidth(NMSettingDcb *setting,
                                      guint         user_priority,
                                      guint         bandwidth_percent)
{
    NMSettingDcbPrivate *priv;

    g_return_if_fail(NM_IS_SETTING_DCB(setting));
    g_return_if_fail(user_priority <= 7);
    g_return_if_fail(bandwidth_percent <= 100);

    priv = NM_SETTING_DCB_GET_PRIVATE(setting);
    if (priv->priority_bandwidth[user_priority] != bandwidth_percent) {
        priv->priority_bandwidth[user_priority] = bandwidth_percent;
        _notify(setting, PROP_PRIORITY_BANDWIDTH);
    }
}

/**
 * nm_setting_dcb_get_priority_strict_bandwidth:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to retrieve strict bandwidth for
 *
 * Returns: %TRUE if @user_priority may use all of the bandwidth allocated to its
 * assigned group, or %FALSE if not. These values are only valid when
 * #NMSettingDcb:priority-group-flags includes the %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
gboolean
nm_setting_dcb_get_priority_strict_bandwidth(NMSettingDcb *setting, guint user_priority)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);
    g_return_val_if_fail(user_priority <= 7, FALSE);

    return !!NM_SETTING_DCB_GET_PRIVATE(setting)->priority_strict[user_priority];
}

/**
 * nm_setting_dcb_set_priority_strict_bandwidth:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to set strict bandwidth for
 * @strict: %TRUE to allow @user_priority to use all the bandwidth allocated to
 * its priority group, or %FALSE if not
 *
 * These values are only valid when #NMSettingDcb:priority-group-flags includes
 * the %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
void
nm_setting_dcb_set_priority_strict_bandwidth(NMSettingDcb *setting,
                                             guint         user_priority,
                                             gboolean      strict)
{
    NMSettingDcbPrivate *priv;
    guint                uint_strict = strict ? 1 : 0;

    g_return_if_fail(NM_IS_SETTING_DCB(setting));
    g_return_if_fail(user_priority <= 7);

    priv = NM_SETTING_DCB_GET_PRIVATE(setting);
    if (priv->priority_strict[user_priority] != uint_strict) {
        priv->priority_strict[user_priority] = uint_strict;
        _notify(setting, PROP_PRIORITY_STRICT_BANDWIDTH);
    }
}

/**
 * nm_setting_dcb_get_priority_traffic_class:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to retrieve the traffic class for
 *
 * Returns: the traffic class assigned to @user_priority. These values are only
 * valid when #NMSettingDcb:priority-group-flags includes the
 * %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
guint
nm_setting_dcb_get_priority_traffic_class(NMSettingDcb *setting, guint user_priority)
{
    g_return_val_if_fail(NM_IS_SETTING_DCB(setting), 0);
    g_return_val_if_fail(user_priority <= 7, FALSE);

    return NM_SETTING_DCB_GET_PRIVATE(setting)->priority_traffic_class[user_priority];
}

/**
 * nm_setting_dcb_set_priority_traffic_clas:
 * @setting: the #NMSettingDcb
 * @user_priority: the User Priority (0 - 7) to set the bandwidth percentage for
 * @traffic_class: the traffic_class (0 - 7) that @user_priority should map to
 *
 * These values are only valid when #NMSettingDcb:priority-group-flags includes
 * the %NM_SETTING_DCB_FLAG_ENABLE flag.
 **/
void
nm_setting_dcb_set_priority_traffic_class(NMSettingDcb *setting,
                                          guint         user_priority,
                                          guint         traffic_class)
{
    NMSettingDcbPrivate *priv;

    g_return_if_fail(NM_IS_SETTING_DCB(setting));
    g_return_if_fail(user_priority <= 7);
    g_return_if_fail(traffic_class <= 7);

    priv = NM_SETTING_DCB_GET_PRIVATE(setting);
    if (priv->priority_traffic_class[user_priority] != traffic_class) {
        priv->priority_traffic_class[user_priority] = traffic_class;
        _notify(setting, PROP_PRIORITY_TRAFFIC_CLASS);
    }
}

/*****************************************************************************/

#define DCB_FLAGS_ALL \
    (NM_SETTING_DCB_FLAG_ENABLE | NM_SETTING_DCB_FLAG_ADVERTISE | NM_SETTING_DCB_FLAG_WILLING)

static gboolean
check_dcb_flags(NMSettingDcbFlags flags, const char *prop_name, GError **error)
{
    if (flags & ~DCB_FLAGS_ALL) {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("flags invalid"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_DCB_SETTING_NAME, prop_name);
        return FALSE;
    }

    if (!(flags & NM_SETTING_DCB_FLAG_ENABLE) && (flags & ~NM_SETTING_DCB_FLAG_ENABLE)) {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("flags invalid - disabled"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_DCB_SETTING_NAME, prop_name);
        return FALSE;
    }

    return TRUE;
}

static gboolean
check_uint_array(const guint      *array,
                 guint             len,
                 NMSettingDcbFlags flags,
                 guint             max,
                 guint             extra,
                 gboolean          sum_pct,
                 const char       *prop_name,
                 GError          **error)
{
    guint i, sum = 0;

    /* Ensure each element is <= to max or equals extra */
    for (i = 0; i < len; i++) {
        if (!(flags & NM_SETTING_DCB_FLAG_ENABLE) && array[i]) {
            g_set_error_literal(error,
                                NM_CONNECTION_ERROR,
                                NM_CONNECTION_ERROR_INVALID_PROPERTY,
                                _("property invalid (not enabled)"));
            g_prefix_error(error, "%s.%s: ", NM_SETTING_DCB_SETTING_NAME, prop_name);
            return FALSE;
        }

        if ((array[i] > max) && (array[i] != extra)) {
            g_set_error_literal(error,
                                NM_CONNECTION_ERROR,
                                NM_CONNECTION_ERROR_INVALID_PROPERTY,
                                _("element invalid"));
            g_prefix_error(error, "%s.%s: ", NM_SETTING_DCB_SETTING_NAME, prop_name);
            return FALSE;
        }
        sum += array[i];
    }

    /* Verify sum of percentages */
    if (sum_pct) {
        if (flags & NM_SETTING_DCB_FLAG_ENABLE) {
            /* If the feature is enabled, sum must equal 100% */
            if (sum != 100) {
                g_set_error_literal(error,
                                    NM_CONNECTION_ERROR,
                                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
                                    _("sum not 100%"));
                g_prefix_error(error, "%s.%s: ", NM_SETTING_DCB_SETTING_NAME, prop_name);
                return FALSE;
            }
        } else {
            /* If the feature is disabled, sum must equal 0%, which was checked
             * by the for() loop above.
             */
            g_assert_cmpint(sum, ==, 0);
        }
    }

    return TRUE;
}

static gboolean
check_priority(int val, NMSettingDcbFlags flags, const char *prop_name, GError **error)
{
    if (!(flags & NM_SETTING_DCB_FLAG_ENABLE) && (val >= 0)) {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("property invalid (not enabled)"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_DCB_SETTING_NAME, prop_name);
        return FALSE;
    }

    if (val < -1 || val > 7) {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("property invalid"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_DCB_SETTING_NAME, prop_name);
        return FALSE;
    }
    return TRUE;
}

static gboolean
verify(NMSetting *setting, NMConnection *connection, GError **error)
{
    NMSettingDcbPrivate *priv = NM_SETTING_DCB_GET_PRIVATE(setting);

    if (!check_dcb_flags(priv->app_fcoe_flags, NM_SETTING_DCB_APP_FCOE_FLAGS, error))
        return FALSE;

    if (!check_priority(priv->app_fcoe_priority,
                        priv->app_fcoe_flags,
                        NM_SETTING_DCB_APP_FCOE_PRIORITY,
                        error))
        return FALSE;

    if (!NM_IN_STRSET(priv->app_fcoe_mode,
                      NULL,
                      NM_SETTING_DCB_FCOE_MODE_FABRIC,
                      NM_SETTING_DCB_FCOE_MODE_VN2VN)) {
        g_set_error_literal(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("property invalid"));
        g_prefix_error(error, "%s.%s: ", NM_SETTING_DCB_SETTING_NAME, NM_SETTING_DCB_APP_FCOE_MODE);
        return FALSE;
    }

    if (!check_dcb_flags(priv->app_iscsi_flags, NM_SETTING_DCB_APP_ISCSI_FLAGS, error))
        return FALSE;

    if (!check_priority(priv->app_iscsi_priority,
                        priv->app_iscsi_flags,
                        NM_SETTING_DCB_APP_ISCSI_PRIORITY,
                        error))
        return FALSE;

    if (!check_dcb_flags(priv->app_fip_flags, NM_SETTING_DCB_APP_FIP_FLAGS, error))
        return FALSE;

    if (!check_priority(priv->app_fip_priority,
                        priv->app_fip_flags,
                        NM_SETTING_DCB_APP_FIP_PRIORITY,
                        error))
        return FALSE;

    if (!check_dcb_flags(priv->pfc_flags, NM_SETTING_DCB_PRIORITY_FLOW_CONTROL_FLAGS, error))
        return FALSE;

    if (!check_uint_array(priv->pfc,
                          G_N_ELEMENTS(priv->pfc),
                          priv->pfc_flags,
                          1,
                          0,
                          FALSE,
                          NM_SETTING_DCB_PRIORITY_FLOW_CONTROL,
                          error))
        return FALSE;

    if (!check_dcb_flags(priv->priority_group_flags, NM_SETTING_DCB_PRIORITY_GROUP_FLAGS, error))
        return FALSE;

    if (!check_uint_array(priv->priority_group_id,
                          G_N_ELEMENTS(priv->priority_group_id),
                          priv->priority_group_flags,
                          7,
                          15,
                          FALSE,
                          NM_SETTING_DCB_PRIORITY_GROUP_ID,
                          error))
        return FALSE;

    if (!check_uint_array(priv->priority_group_bandwidth,
                          G_N_ELEMENTS(priv->priority_group_bandwidth),
                          priv->priority_group_flags,
                          100,
                          0,
                          TRUE,
                          NM_SETTING_DCB_PRIORITY_GROUP_BANDWIDTH,
                          error))
        return FALSE;

    /* FIXME: sum bandwidths in each group */
    if (!check_uint_array(priv->priority_bandwidth,
                          G_N_ELEMENTS(priv->priority_bandwidth),
                          priv->priority_group_flags,
                          100,
                          0,
                          FALSE,
                          NM_SETTING_DCB_PRIORITY_BANDWIDTH,
                          error))
        return FALSE;

    if (!check_uint_array(priv->priority_strict,
                          G_N_ELEMENTS(priv->priority_strict),
                          priv->priority_group_flags,
                          1,
                          0,
                          FALSE,
                          NM_SETTING_DCB_PRIORITY_STRICT_BANDWIDTH,
                          error))
        return FALSE;

    if (!check_uint_array(priv->priority_traffic_class,
                          G_N_ELEMENTS(priv->priority_traffic_class),
                          priv->priority_group_flags,
                          7,
                          0,
                          FALSE,
                          NM_SETTING_DCB_PRIORITY_TRAFFIC_CLASS,
                          error))
        return FALSE;

    return TRUE;
}

/*****************************************************************************/

G_STATIC_ASSERT(sizeof(guint) == sizeof(gboolean));

static void
set_array_from_gvalue(const GValue *v, uint *a, size_t len)
{
    GArray     *src       = g_value_get_boxed(v);
    const guint total_len = len * sizeof(a[0]);

    memset(a, 0, total_len);
    if (src) {
        g_return_if_fail(g_array_get_element_size(src) == sizeof(a[0]));
        g_return_if_fail(src->len == len);
        memcpy(a, src->data, total_len);
    }
}
#define SET_ARRAY_FROM_GVALUE(v, a) set_array_from_gvalue(v, a, G_N_ELEMENTS(a))

static void
set_gvalue_from_array(GValue *v, uint *a, size_t len)
{
    GArray *src = g_array_sized_new(FALSE, TRUE, sizeof(guint), len);

    g_array_append_vals(src, a, len);
    g_value_take_boxed(v, src);
}

#define SET_GVALUE_FROM_ARRAY(v, a) set_gvalue_from_array(v, a, G_N_ELEMENTS(a))

static void
_nm_setting_dcb_uint_array_from_dbus(_NM_SETT_INFO_PROP_FROM_DBUS_GPROP_FCN_ARGS _nm_nil)
{
    gconstpointer array;
    gsize         length;

    array = g_variant_get_fixed_array(from, &length, sizeof(guint32));
    set_gvalue_from_array(to, (guint *) array, length);
}

static const NMSettInfoPropertType nm_sett_info_propert_type_dcb_au =
    NM_SETT_INFO_PROPERT_TYPE_GPROP_INIT(
        NM_G_VARIANT_TYPE("au"),
        .typdata_to_dbus.gprop_type  = NM_SETTING_PROPERTY_TO_DBUS_FCN_GPROP_TYPE_GARRAY_UINT,
        .typdata_from_dbus.gprop_fcn = _nm_setting_dcb_uint_array_from_dbus,
        .compare_fcn                 = _nm_setting_property_compare_fcn_default,
        .from_dbus_fcn               = _nm_setting_property_from_dbus_fcn_gprop,
        .from_dbus_is_full           = TRUE);

/*****************************************************************************/

static void
get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    NMSettingDcb        *setting = NM_SETTING_DCB(object);
    NMSettingDcbPrivate *priv    = NM_SETTING_DCB_GET_PRIVATE(setting);

    switch (prop_id) {
    case PROP_PRIORITY_FLOW_CONTROL:
        SET_GVALUE_FROM_ARRAY(value, priv->pfc);
        break;
    case PROP_PRIORITY_GROUP_ID:
        SET_GVALUE_FROM_ARRAY(value, priv->priority_group_id);
        break;
    case PROP_PRIORITY_GROUP_BANDWIDTH:
        SET_GVALUE_FROM_ARRAY(value, priv->priority_group_bandwidth);
        break;
    case PROP_PRIORITY_BANDWIDTH:
        SET_GVALUE_FROM_ARRAY(value, priv->priority_bandwidth);
        break;
    case PROP_PRIORITY_STRICT_BANDWIDTH:
        SET_GVALUE_FROM_ARRAY(value, priv->priority_strict);
        break;
    case PROP_PRIORITY_TRAFFIC_CLASS:
        SET_GVALUE_FROM_ARRAY(value, priv->priority_traffic_class);
        break;
    default:
        _nm_setting_property_get_property_direct(object, prop_id, value, pspec);
        break;
    }
}

static void
set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
    NMSettingDcbPrivate *priv = NM_SETTING_DCB_GET_PRIVATE(object);

    switch (prop_id) {
    case PROP_PRIORITY_FLOW_CONTROL:
        SET_ARRAY_FROM_GVALUE(value, priv->pfc);
        break;
    case PROP_PRIORITY_GROUP_ID:
        SET_ARRAY_FROM_GVALUE(value, priv->priority_group_id);
        break;
    case PROP_PRIORITY_GROUP_BANDWIDTH:
        SET_ARRAY_FROM_GVALUE(value, priv->priority_group_bandwidth);
        break;
    case PROP_PRIORITY_BANDWIDTH:
        SET_ARRAY_FROM_GVALUE(value, priv->priority_bandwidth);
        break;
    case PROP_PRIORITY_STRICT_BANDWIDTH:
        SET_ARRAY_FROM_GVALUE(value, priv->priority_strict);
        break;
    case PROP_PRIORITY_TRAFFIC_CLASS:
        SET_ARRAY_FROM_GVALUE(value, priv->priority_traffic_class);
        break;
    default:
        _nm_setting_property_set_property_direct(object, prop_id, value, pspec);
        break;
    }
}

/*****************************************************************************/

static void
nm_setting_dcb_init(NMSettingDcb *self)
{}

/**
 * nm_setting_dcb_new:
 *
 * Creates a new #NMSettingDcb object with default values.
 *
 * Returns: (transfer full): the new empty #NMSettingDcb object
 **/
NMSetting *
nm_setting_dcb_new(void)
{
    return g_object_new(NM_TYPE_SETTING_DCB, NULL);
}

static void
nm_setting_dcb_class_init(NMSettingDcbClass *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(NMSettingDcbPrivate));

    object_class->get_property = get_property;
    object_class->set_property = set_property;

    setting_class->verify = verify;

    /**
     * NMSettingDcb:app-fcoe-flags:
     *
     * Specifies the #NMSettingDcbFlags for the DCB FCoE application.  Flags may
     * be any combination of %NM_SETTING_DCB_FLAG_ENABLE,
     * %NM_SETTING_DCB_FLAG_ADVERTISE, and %NM_SETTING_DCB_FLAG_WILLING.
     **/
    /* ---ifcfg-rh---
     * property: app-fcoe-flags
     * variable: DCB_APP_FCOE_ENABLE, DCB_APP_FCOE_ADVERTISE, DCB_APP_FCOE_WILLING
     * description: FCOE flags.
     * default: no
     * example: DCB_APP_FCOE_ENABLE=yes DCB_APP_FCOE_ADVERTISE=yes
     * ---end---
     */
    _nm_setting_property_define_direct_flags(properties_override,
                                             obj_properties,
                                             NM_SETTING_DCB_APP_FCOE_FLAGS,
                                             PROP_APP_FCOE_FLAGS,
                                             NM_TYPE_SETTING_DCB_FLAGS,
                                             NM_SETTING_DCB_FLAG_NONE,
                                             NM_SETTING_PARAM_NONE,
                                             NMSettingDcbPrivate,
                                             app_fcoe_flags);

    /**
     * NMSettingDcb:app-fcoe-priority:
     *
     * The highest User Priority (0 - 7) which FCoE frames should use, or -1 for
     * default priority.  Only used when the #NMSettingDcb:app-fcoe-flags
     * property includes the %NM_SETTING_DCB_FLAG_ENABLE flag.
     **/
    /* ---ifcfg-rh---
     * property: app-fcoe-priority
     * variable: DCB_APP_FCOE_PRIORITY
     * values: 0 - 7
     * description: Priority of FCoE frames.
     * ---end---
     */
    _nm_setting_property_define_direct_int32(properties_override,
                                             obj_properties,
                                             NM_SETTING_DCB_APP_FCOE_PRIORITY,
                                             PROP_APP_FCOE_PRIORITY,
                                             -1,
                                             7,
                                             -1,
                                             NM_SETTING_PARAM_NONE,
                                             NMSettingDcbPrivate,
                                             app_fcoe_priority);

    /**
     * NMSettingDcb:app-fcoe-mode:
     *
     * The FCoE controller mode; either %NM_SETTING_DCB_FCOE_MODE_FABRIC
     * or %NM_SETTING_DCB_FCOE_MODE_VN2VN.
     *
     * Since 1.34, %NULL is the default and means %NM_SETTING_DCB_FCOE_MODE_FABRIC.
     * Before 1.34, %NULL was rejected as invalid and the default was %NM_SETTING_DCB_FCOE_MODE_FABRIC.
     **/
    /* ---ifcfg-rh---
     * property: app-fcoe-mode
     * variable: DCB_APP_FCOE_MODE
     * values: fabric, vn2vn
     * default: fabric
     * description: FCoE controller mode.
     * ---end---
     */
    _nm_setting_property_define_direct_string(properties_override,
                                              obj_properties,
                                              NM_SETTING_DCB_APP_FCOE_MODE,
                                              PROP_APP_FCOE_MODE,
                                              NM_SETTING_PARAM_NONE,
                                              NMSettingDcbPrivate,
                                              app_fcoe_mode);

    /**
     * NMSettingDcb:app-iscsi-flags:
     *
     * Specifies the #NMSettingDcbFlags for the DCB iSCSI application.  Flags
     * may be any combination of %NM_SETTING_DCB_FLAG_ENABLE,
     * %NM_SETTING_DCB_FLAG_ADVERTISE, and %NM_SETTING_DCB_FLAG_WILLING.
     **/
    /* ---ifcfg-rh---
     * property: app-iscsi-flags
     * variable: DCB_APP_ISCSI_ENABLE, DCB_APP_ISCSI_ADVERTISE, DCB_APP_ISCSI_WILLING
     * default: no
     * description: iSCSI flags.
     * ---end---
     */
    _nm_setting_property_define_direct_flags(properties_override,
                                             obj_properties,
                                             NM_SETTING_DCB_APP_ISCSI_FLAGS,
                                             PROP_APP_ISCSI_FLAGS,
                                             NM_TYPE_SETTING_DCB_FLAGS,
                                             NM_SETTING_DCB_FLAG_NONE,
                                             NM_SETTING_PARAM_NONE,
                                             NMSettingDcbPrivate,
                                             app_iscsi_flags);

    /**
     * NMSettingDcb:app-iscsi-priority:
     *
     * The highest User Priority (0 - 7) which iSCSI frames should use, or -1
     * for default priority. Only used when the #NMSettingDcb:app-iscsi-flags
     * property includes the %NM_SETTING_DCB_FLAG_ENABLE flag.
     **/
    /* ---ifcfg-rh---
     * property: app-iscsi-priority
     * variable: DCB_APP_ISCSI_PRIORITY
     * values: 0 - 7
     * description: Priority of iSCSI frames.
     * ---end---
     */
    _nm_setting_property_define_direct_int32(properties_override,
                                             obj_properties,
                                             NM_SETTING_DCB_APP_ISCSI_PRIORITY,
                                             PROP_APP_ISCSI_PRIORITY,
                                             -1,
                                             7,
                                             -1,
                                             NM_SETTING_PARAM_NONE,
                                             NMSettingDcbPrivate,
                                             app_iscsi_priority);

    /**
     * NMSettingDcb:app-fip-flags:
     *
     * Specifies the #NMSettingDcbFlags for the DCB FIP application.  Flags may
     * be any combination of %NM_SETTING_DCB_FLAG_ENABLE,
     * %NM_SETTING_DCB_FLAG_ADVERTISE, and %NM_SETTING_DCB_FLAG_WILLING.
     **/
    /* ---ifcfg-rh---
     * property: app-fip-flags
     * variable: DCB_APP_FIP_ENABLE, DCB_APP_FIP_ADVERTISE, DCB_APP_FIP_WILLING
     * default: no
     * description: FIP flags.
     * ---end---
     */
    _nm_setting_property_define_direct_flags(properties_override,
                                             obj_properties,
                                             NM_SETTING_DCB_APP_FIP_FLAGS,
                                             PROP_APP_FIP_FLAGS,
                                             NM_TYPE_SETTING_DCB_FLAGS,
                                             NM_SETTING_DCB_FLAG_NONE,
                                             NM_SETTING_PARAM_NONE,
                                             NMSettingDcbPrivate,
                                             app_fip_flags);

    /**
     * NMSettingDcb:app-fip-priority:
     *
     * The highest User Priority (0 - 7) which FIP frames should use, or -1 for
     * default priority.  Only used when the #NMSettingDcb:app-fip-flags
     * property includes the %NM_SETTING_DCB_FLAG_ENABLE flag.
     **/
    /* ---ifcfg-rh---
     * property: app-fip-priority
     * variable: DCB_APP_FIP_PRIORITY
     * values: 0 - 7
     * description: Priority of FIP frames.
     * ---end---
     */
    _nm_setting_property_define_direct_int32(properties_override,
                                             obj_properties,
                                             NM_SETTING_DCB_APP_FIP_PRIORITY,
                                             PROP_APP_FIP_PRIORITY,
                                             -1,
                                             7,
                                             -1,
                                             NM_SETTING_PARAM_NONE,
                                             NMSettingDcbPrivate,
                                             app_fip_priority);

    /**
     * NMSettingDcb:priority-flow-control-flags:
     *
     * Specifies the #NMSettingDcbFlags for DCB Priority Flow Control (PFC).
     * Flags may be any combination of %NM_SETTING_DCB_FLAG_ENABLE,
     * %NM_SETTING_DCB_FLAG_ADVERTISE, and %NM_SETTING_DCB_FLAG_WILLING.
     **/
    /* ---ifcfg-rh---
     * property: priority-flow-control-flags
     * variable: DCB_PFC_ENABLE, DCB_PFC_ADVERTISE, DCB_PFC_WILLING
     * default: no
     * description: Priority flow control flags.
     * ---end---
     */
    _nm_setting_property_define_direct_flags(properties_override,
                                             obj_properties,
                                             NM_SETTING_DCB_PRIORITY_FLOW_CONTROL_FLAGS,
                                             PROP_PFC_FLAGS,
                                             NM_TYPE_SETTING_DCB_FLAGS,
                                             NM_SETTING_DCB_FLAG_NONE,
                                             NM_SETTING_PARAM_NONE,
                                             NMSettingDcbPrivate,
                                             pfc_flags);

    /**
     * NMSettingDcb:priority-flow-control: (type GArray(gboolean))
     *
     * An array of 8 boolean values, where the array index corresponds to the User
     * Priority (0 - 7) and the value indicates whether or not the corresponding
     * priority should transmit priority pause.
     **/
    /* ---ifcfg-rh---
     * property: priority-flow-control
     * variable: DCB_PFC_UP
     * description: Priority flow control values. String of 8 "0" and "1", where "0".
     *   means "do not transmit priority pause", "1" means "transmit pause".
     * example: DCB_PFC_UP=01101110
     * ---end---
     */
    obj_properties[PROP_PRIORITY_FLOW_CONTROL] =
        g_param_spec_boxed(NM_SETTING_DCB_PRIORITY_FLOW_CONTROL,
                           "",
                           "",
                           G_TYPE_ARRAY,
                           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    _nm_properties_override_gobj(properties_override,
                                 obj_properties[PROP_PRIORITY_FLOW_CONTROL],
                                 &nm_sett_info_propert_type_dcb_au);

    /**
     * NMSettingDcb:priority-group-flags:
     *
     * Specifies the #NMSettingDcbFlags for DCB Priority Groups.  Flags may be
     * any combination of %NM_SETTING_DCB_FLAG_ENABLE,
     * %NM_SETTING_DCB_FLAG_ADVERTISE, and %NM_SETTING_DCB_FLAG_WILLING.
     **/
    /* ---ifcfg-rh---
     * property: priority-group-flags
     * variable: DCB_PG_ENABLE, DCB_PG_ADVERTISE, DCB_PG_WILLING
     * default: no
     * description: Priority groups flags.
     * ---end---
     */
    _nm_setting_property_define_direct_flags(properties_override,
                                             obj_properties,
                                             NM_SETTING_DCB_PRIORITY_GROUP_FLAGS,
                                             PROP_PRIORITY_GROUP_FLAGS,
                                             NM_TYPE_SETTING_DCB_FLAGS,
                                             NM_SETTING_DCB_FLAG_NONE,
                                             NM_SETTING_PARAM_NONE,
                                             NMSettingDcbPrivate,
                                             priority_group_flags);

    /**
     * NMSettingDcb:priority-group-id: (type GArray(guint))
     *
     * An array of 8 uint values, where the array index corresponds to the User
     * Priority (0 - 7) and the value indicates the Priority Group ID.  Allowed
     * Priority Group ID values are 0 - 7 or 15 for the unrestricted group.
     **/
    /* ---ifcfg-rh---
     * property: priority-group-id
     * variable: DCB_PG_ID
     * description: Priority groups values. String of eight priorities (0 - 7) or "f"
     *   (unrestricted).
     * example: DCB_PG_ID=1205f173
     * ---end---
     */
    obj_properties[PROP_PRIORITY_GROUP_ID] =
        g_param_spec_boxed(NM_SETTING_DCB_PRIORITY_GROUP_ID,
                           "",
                           "",
                           G_TYPE_ARRAY,
                           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    _nm_properties_override_gobj(properties_override,
                                 obj_properties[PROP_PRIORITY_GROUP_ID],
                                 &nm_sett_info_propert_type_dcb_au);

    /**
     * NMSettingDcb:priority-group-bandwidth: (type GArray(guint))
     *
     * An array of 8 uint values, where the array index corresponds to the
     * Priority Group ID (0 - 7) and the value indicates the percentage of link
     * bandwidth allocated to that group.  Allowed values are 0 - 100, and the
     * sum of all values must total 100 percents.
     **/
    /* ---ifcfg-rh---
     * property: priority-group-bandwidth
     * variable: DCB_PG_PCT
     * description: Priority groups values. Eight bandwidths (in percent), separated with commas.
     * example: DCB_PG_PCT=10,5,10,15,10,10,10,30
     * ---end---
     */
    obj_properties[PROP_PRIORITY_GROUP_BANDWIDTH] =
        g_param_spec_boxed(NM_SETTING_DCB_PRIORITY_GROUP_BANDWIDTH,
                           "",
                           "",
                           G_TYPE_ARRAY,
                           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    _nm_properties_override_gobj(properties_override,
                                 obj_properties[PROP_PRIORITY_GROUP_BANDWIDTH],
                                 &nm_sett_info_propert_type_dcb_au);

    /**
     * NMSettingDcb:priority-bandwidth: (type GArray(guint))
     *
     * An array of 8 uint values, where the array index corresponds to the User
     * Priority (0 - 7) and the value indicates the percentage of bandwidth of
     * the priority's assigned group that the priority may use.  The sum of all
     * percentages for priorities which belong to the same group must total 100
     * percents.
     **/
    /* ---ifcfg-rh---
     * property: priority-bandwidth
     * variable: DCB_PG_UPPCT
     * description: Priority values. Eight bandwidths (in percent), separated with commas.
     *   The sum of the numbers must be 100.
     * example: DCB_PG_UPPCT=7,13,10,10,15,15,10,20
     * ---end---
     */
    obj_properties[PROP_PRIORITY_BANDWIDTH] =
        g_param_spec_boxed(NM_SETTING_DCB_PRIORITY_BANDWIDTH,
                           "",
                           "",
                           G_TYPE_ARRAY,
                           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    _nm_properties_override_gobj(properties_override,
                                 obj_properties[PROP_PRIORITY_BANDWIDTH],
                                 &nm_sett_info_propert_type_dcb_au);

    /**
     * NMSettingDcb:priority-strict-bandwidth: (type GArray(gboolean))
     *
     * An array of 8 boolean values, where the array index corresponds to the User
     * Priority (0 - 7) and the value indicates whether or not the priority may
     * use all of the bandwidth allocated to its assigned group.
     **/
    /* ---ifcfg-rh---
     * property: priority-strict-bandwidth
     * variable: DCB_PG_STRICT
     * description: Priority values. String of eight "0" or "1", where "0" means
     *   "may not utilize all bandwidth", "1" means "may utilize all bandwidth".
     * example: DCB_PG_STRICT=01101110
     * ---end---
     */
    obj_properties[PROP_PRIORITY_STRICT_BANDWIDTH] =
        g_param_spec_boxed(NM_SETTING_DCB_PRIORITY_STRICT_BANDWIDTH,
                           "",
                           "",
                           G_TYPE_ARRAY,
                           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    _nm_properties_override_gobj(properties_override,
                                 obj_properties[PROP_PRIORITY_STRICT_BANDWIDTH],
                                 &nm_sett_info_propert_type_dcb_au);

    /**
     * NMSettingDcb:priority-traffic-class: (type GArray(guint))
     *
     * An array of 8 uint values, where the array index corresponds to the User
     * Priority (0 - 7) and the value indicates the traffic class (0 - 7) to
     * which the priority is mapped.
     **/
    /* ---ifcfg-rh---
     * property: priority-traffic-class
     * variable: DCB_PG_UP2TC
     * description: Priority values. String of eight traffic class values (0 - 7).
     * example: DCB_PG_UP2TC=01623701
     * ---end---
     */
    obj_properties[PROP_PRIORITY_TRAFFIC_CLASS] =
        g_param_spec_boxed(NM_SETTING_DCB_PRIORITY_TRAFFIC_CLASS,
                           "",
                           "",
                           G_TYPE_ARRAY,
                           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
    _nm_properties_override_gobj(properties_override,
                                 obj_properties[PROP_PRIORITY_TRAFFIC_CLASS],
                                 &nm_sett_info_propert_type_dcb_au);

    g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);

    _nm_setting_class_commit(setting_class,
                             NM_META_SETTING_TYPE_DCB,
                             NULL,
                             properties_override,
                             NM_SETT_INFO_PRIVATE_OFFSET_FROM_CLASS);
}
