/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019 Red Hat, Inc.
 */

#define NM_VALUE_TYPE_DEFINE_FUNCTIONS

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

#include "nm-team-utils.h"

#include "nm-errors.h"
#include "nm-utils-private.h"
#include "libnm-glib-aux/nm-json-aux.h"
#include "libnm-core-intern/nm-core-internal.h"
#include "nm-setting-team.h"
#include "nm-setting-team-port.h"

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

typedef enum {
    SET_FIELD_MODE_UNSET = 0,
    SET_FIELD_MODE_SET   = 1,

    /* Sets the field as set, unless the field is at the default.
     * This is the case for API that is called from NMSettingTeam/NMSettingTeamPort.
     * This means, using libnm API to reset the value of a NMSetting to the default,
     * will mark the field as unset.
     * This is different from initializing the field when parsing JSON/GVariant. In
     * that case an explicitly set field (even set to the default value) will be remembered
     * to be set. */
    SET_FIELD_MODE_SET_UNLESS_DEFAULT = 2,
} SetFieldModeEnum;

typedef enum {
    RESET_JSON_NO  = FALSE,
    RESET_JSON_YES = TRUE,
} ResetJsonEnum;

/* we rely on "config" being the first. At various places we iterate over attribute types,
 * starting after "config".*/
G_STATIC_ASSERT(_NM_TEAM_ATTRIBUTE_0 == 0);
G_STATIC_ASSERT(NM_TEAM_ATTRIBUTE_CONFIG == 1);

static const char *const _valid_names_runner[] = {
    NM_SETTING_TEAM_RUNNER_BROADCAST,
    NM_SETTING_TEAM_RUNNER_ROUNDROBIN,
    NM_SETTING_TEAM_RUNNER_RANDOM,
    NM_SETTING_TEAM_RUNNER_ACTIVEBACKUP,
    NM_SETTING_TEAM_RUNNER_LOADBALANCE,
    NM_SETTING_TEAM_RUNNER_LACP,
    NULL,
};

static const char *const _valid_names_runner_hwaddr_policy[] = {
    NM_SETTING_TEAM_RUNNER_HWADDR_POLICY_SAME_ALL,
    NM_SETTING_TEAM_RUNNER_HWADDR_POLICY_BY_ACTIVE,
    NM_SETTING_TEAM_RUNNER_HWADDR_POLICY_ONLY_ACTIVE,
    NULL,
};

static const char *const _valid_names_runner_tx_balancer[] = {
    "basic",
    NULL,
};

static const char *const _valid_names_runner_tx_hash[] = {
    "eth",
    "vlan",
    "ipv4",
    "ipv6",
    "ip",
    "l3",
    "l4",
    "tcp",
    "udp",
    "sctp",
    NULL,
};

static const char *const _valid_names_runner_agg_select_policy[] = {
    "lacp_prio",
    "lacp_prio_stable",
    "bandwidth",
    "count",
    "port_config",
    NULL,
};

typedef struct {
    NMTeamAttribute    team_attr;
    const char *const *valid_runners;
} RunnerCompatElem;

static const RunnerCompatElem _runner_compat_lst[] = {
    {
        NM_TEAM_ATTRIBUTE_MASTER_RUNNER_HWADDR_POLICY,
        NM_MAKE_STRV(NM_SETTING_TEAM_RUNNER_ACTIVEBACKUP),
    },
    {
        NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH,
        NM_MAKE_STRV(NM_SETTING_TEAM_RUNNER_LOADBALANCE, NM_SETTING_TEAM_RUNNER_LACP),
    },
    {
        NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_BALANCER,
        NM_MAKE_STRV(NM_SETTING_TEAM_RUNNER_LOADBALANCE, NM_SETTING_TEAM_RUNNER_LACP),
    },
    {
        NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_BALANCER_INTERVAL,
        NM_MAKE_STRV(NM_SETTING_TEAM_RUNNER_LOADBALANCE, NM_SETTING_TEAM_RUNNER_LACP),
    },
    {
        NM_TEAM_ATTRIBUTE_MASTER_RUNNER_ACTIVE,
        NM_MAKE_STRV(NM_SETTING_TEAM_RUNNER_LACP),
    },
    {
        NM_TEAM_ATTRIBUTE_MASTER_RUNNER_FAST_RATE,
        NM_MAKE_STRV(NM_SETTING_TEAM_RUNNER_LACP),
    },
    {
        NM_TEAM_ATTRIBUTE_MASTER_RUNNER_SYS_PRIO,
        NM_MAKE_STRV(NM_SETTING_TEAM_RUNNER_LACP),
    },
    {
        NM_TEAM_ATTRIBUTE_MASTER_RUNNER_MIN_PORTS,
        NM_MAKE_STRV(NM_SETTING_TEAM_RUNNER_LACP),
    },
    {
        NM_TEAM_ATTRIBUTE_MASTER_RUNNER_AGG_SELECT_POLICY,
        NM_MAKE_STRV(NM_SETTING_TEAM_RUNNER_LACP),
    },
};

typedef struct {
    const char *const *js_keys;
    const char        *property_name;
    NMValueTypUnion    default_val;
    union {
        struct {
            gint32 min;
            gint32 max;
        } r_int32;
        struct {
            const char *const *valid_names;
        } r_string;
    } range;
    NMTeamAttribute team_attr;
    NMValueType     value_type;
    guint8          field_offset;
    guint8          js_keys_len;
    bool            for_master : 1;
    bool            for_port : 1;
    bool            has_range : 1;
} TeamAttrData;

#define TEAM_ATTR_IDX(_is_port, _team_attr)                                     \
    (((!(_is_port) || (_team_attr) < _NM_TEAM_ATTRIBUTE_START)                  \
          ? (int) (_team_attr)                                                  \
          : (((int) (_NM_TEAM_ATTRIBUTE_MASTER_NUM - _NM_TEAM_ATTRIBUTE_START)) \
             + ((int) (_team_attr))))                                           \
     - 1)

#define TEAM_ATTR_IDX_CONFIG (TEAM_ATTR_IDX(FALSE, NM_TEAM_ATTRIBUTE_CONFIG))

static const TeamAttrData team_attr_datas[] = {

#define _JS_KEYS(...) .js_keys = NM_MAKE_STRV(__VA_ARGS__), .js_keys_len = NM_NARG(__VA_ARGS__)

#define _VAL_BOOL(_default) .default_val.v_bool = (_default)

#define _VAL_INT32(_default) .default_val.v_int32 = (_default)

#define _VAL_INT32_RANGE(_default, _min, _max) \
    _VAL_INT32(_default), .has_range = TRUE,   \
                          .range.r_int32 = {   \
                              .min = _min,     \
                              .max = _max,     \
    }

#define _VAL_STRING() .default_val.v_string = NULL

#define _VAL_STRING_RANGE(_valid_names)               \
    _VAL_STRING(), .has_range = TRUE,                 \
                   .range.r_string = {                \
                       .valid_names = (_valid_names), \
    }

#define _VAL_UNSPEC() .default_val.v_string = (NULL)

#define _INIT(_is_port, _team_attr, field, _value_type, _property_name, ...)     \
    [TEAM_ATTR_IDX(_is_port, _team_attr)] = {                                    \
        .for_master    = (_team_attr) < _NM_TEAM_ATTRIBUTE_START || !(_is_port), \
        .for_port      = (_team_attr) < _NM_TEAM_ATTRIBUTE_START || (_is_port),  \
        .team_attr     = (_team_attr),                                           \
        .field_offset  = G_STRUCT_OFFSET(NMTeamSetting, _data_priv.field),       \
        .value_type    = (_value_type),                                          \
        .property_name = ""_property_name                                        \
                         "",                                                     \
        __VA_ARGS__}

    _INIT(0, NM_TEAM_ATTRIBUTE_CONFIG, _js_str, NM_VALUE_TYPE_UNSPEC, NM_SETTING_TEAM_CONFIG, ),

    _INIT(0,
          NM_TEAM_ATTRIBUTE_LINK_WATCHERS,
          link_watchers,
          NM_VALUE_TYPE_UNSPEC,
          NM_SETTING_TEAM_LINK_WATCHERS,
          _JS_KEYS("link_watch"),
          _VAL_UNSPEC(), ),

    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_NOTIFY_PEERS_COUNT,
          master.notify_peers_count,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_NOTIFY_PEERS_COUNT,
          _JS_KEYS("notify_peers", "count"),
          _VAL_INT32_RANGE(-1, 0, G_MAXINT32), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_NOTIFY_PEERS_INTERVAL,
          master.notify_peers_interval,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_NOTIFY_PEERS_INTERVAL,
          _JS_KEYS("notify_peers", "interval"),
          _VAL_INT32_RANGE(-1, 0, G_MAXINT32), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_MCAST_REJOIN_COUNT,
          master.mcast_rejoin_count,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_MCAST_REJOIN_COUNT,
          _JS_KEYS("mcast_rejoin", "count"),
          _VAL_INT32_RANGE(-1, 0, G_MAXINT32), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_MCAST_REJOIN_INTERVAL,
          master.mcast_rejoin_interval,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_MCAST_REJOIN_INTERVAL,
          _JS_KEYS("mcast_rejoin", "interval"),
          _VAL_INT32_RANGE(-1, 0, G_MAXINT32), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER,
          master.runner,
          NM_VALUE_TYPE_STRING,
          NM_SETTING_TEAM_RUNNER,
          _JS_KEYS("runner", "name"),
          _VAL_STRING_RANGE(_valid_names_runner), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER_HWADDR_POLICY,
          master.runner_hwaddr_policy,
          NM_VALUE_TYPE_STRING,
          NM_SETTING_TEAM_RUNNER_HWADDR_POLICY,
          _JS_KEYS("runner", "hwaddr_policy"),
          _VAL_STRING_RANGE(_valid_names_runner_hwaddr_policy), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH,
          master.runner_tx_hash,
          NM_VALUE_TYPE_UNSPEC,
          NM_SETTING_TEAM_RUNNER_TX_HASH,
          _JS_KEYS("runner", "tx_hash"),
          _VAL_UNSPEC(), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_BALANCER,
          master.runner_tx_balancer,
          NM_VALUE_TYPE_STRING,
          NM_SETTING_TEAM_RUNNER_TX_BALANCER,
          _JS_KEYS("runner", "tx_balancer", "name"),
          _VAL_STRING_RANGE(_valid_names_runner_tx_balancer), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_BALANCER_INTERVAL,
          master.runner_tx_balancer_interval,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_RUNNER_TX_BALANCER_INTERVAL,
          _JS_KEYS("runner", "tx_balancer", "balancing_interval"),
          _VAL_INT32_RANGE(-1, 0, G_MAXINT32), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER_ACTIVE,
          master.runner_active,
          NM_VALUE_TYPE_BOOL,
          NM_SETTING_TEAM_RUNNER_ACTIVE,
          _JS_KEYS("runner", "active"),
          _VAL_BOOL(TRUE), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER_FAST_RATE,
          master.runner_fast_rate,
          NM_VALUE_TYPE_BOOL,
          NM_SETTING_TEAM_RUNNER_FAST_RATE,
          _JS_KEYS("runner", "fast_rate"),
          _VAL_BOOL(FALSE), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER_SYS_PRIO,
          master.runner_sys_prio,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_RUNNER_SYS_PRIO,
          _JS_KEYS("runner", "sys_prio"),
          _VAL_INT32_RANGE(-1, 0, USHRT_MAX + 1), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER_MIN_PORTS,
          master.runner_min_ports,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_RUNNER_MIN_PORTS,
          _JS_KEYS("runner", "min_ports"),
          _VAL_INT32_RANGE(-1, 1, UCHAR_MAX + 1), ),
    _INIT(0,
          NM_TEAM_ATTRIBUTE_MASTER_RUNNER_AGG_SELECT_POLICY,
          master.runner_agg_select_policy,
          NM_VALUE_TYPE_STRING,
          NM_SETTING_TEAM_RUNNER_AGG_SELECT_POLICY,
          _JS_KEYS("runner", "agg_select_policy"),
          _VAL_STRING_RANGE(_valid_names_runner_agg_select_policy), ),

    _INIT(1,
          NM_TEAM_ATTRIBUTE_PORT_QUEUE_ID,
          port.queue_id,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_PORT_QUEUE_ID,
          _JS_KEYS("queue_id"),
          _VAL_INT32_RANGE(-1, 0, G_MAXINT32), ),
    _INIT(1,
          NM_TEAM_ATTRIBUTE_PORT_PRIO,
          port.prio,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_PORT_PRIO,
          _JS_KEYS("prio"),
          _VAL_INT32(0), ),
    _INIT(1,
          NM_TEAM_ATTRIBUTE_PORT_STICKY,
          port.sticky,
          NM_VALUE_TYPE_BOOL,
          NM_SETTING_TEAM_PORT_STICKY,
          _JS_KEYS("sticky"),
          _VAL_BOOL(FALSE), ),
    _INIT(1,
          NM_TEAM_ATTRIBUTE_PORT_LACP_PRIO,
          port.lacp_prio,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_PORT_LACP_PRIO,
          _JS_KEYS("lacp_prio"),
          _VAL_INT32_RANGE(-1, 0, USHRT_MAX + 1), ),
    _INIT(1,
          NM_TEAM_ATTRIBUTE_PORT_LACP_KEY,
          port.lacp_key,
          NM_VALUE_TYPE_INT32,
          NM_SETTING_TEAM_PORT_LACP_KEY,
          _JS_KEYS("lacp_key"),
          _VAL_INT32_RANGE(-1, 0, USHRT_MAX + 1), ),

#undef _INIT
};

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

typedef enum {
    LINK_WATCHER_ATTRIBUTE_NAME,
    LINK_WATCHER_ATTRIBUTE_DELAY_UP,
    LINK_WATCHER_ATTRIBUTE_DELAY_DOWN,
    LINK_WATCHER_ATTRIBUTE_INTERVAL,
    LINK_WATCHER_ATTRIBUTE_INIT_WAIT,
    LINK_WATCHER_ATTRIBUTE_MISSED_MAX,
    LINK_WATCHER_ATTRIBUTE_SOURCE_HOST,
    LINK_WATCHER_ATTRIBUTE_TARGET_HOST,
    LINK_WATCHER_ATTRIBUTE_VALIDATE_ACTIVE,
    LINK_WATCHER_ATTRIBUTE_VALIDATE_INACTIVE,
    LINK_WATCHER_ATTRIBUTE_VLANID,
    LINK_WATCHER_ATTRIBUTE_SEND_ALWAYS,
} LinkWatcherAttribute;

#define _EXPECTED_LINK_WATCHER_ATTRIBUTES_ETHTOOL \
    LINK_WATCHER_ATTRIBUTE_NAME, LINK_WATCHER_ATTRIBUTE_DELAY_UP, LINK_WATCHER_ATTRIBUTE_DELAY_DOWN
#define _EXPECTED_LINK_WATCHER_ATTRIBUTES_NSNA_PING                          \
    LINK_WATCHER_ATTRIBUTE_NAME, LINK_WATCHER_ATTRIBUTE_INTERVAL,            \
        LINK_WATCHER_ATTRIBUTE_INIT_WAIT, LINK_WATCHER_ATTRIBUTE_MISSED_MAX, \
        LINK_WATCHER_ATTRIBUTE_TARGET_HOST
#define _EXPECTED_LINK_WATCHER_ATTRIBUTES_ARP_PING                                        \
    LINK_WATCHER_ATTRIBUTE_NAME, LINK_WATCHER_ATTRIBUTE_INTERVAL,                         \
        LINK_WATCHER_ATTRIBUTE_INIT_WAIT, LINK_WATCHER_ATTRIBUTE_MISSED_MAX,              \
        LINK_WATCHER_ATTRIBUTE_SOURCE_HOST, LINK_WATCHER_ATTRIBUTE_TARGET_HOST,           \
        LINK_WATCHER_ATTRIBUTE_VALIDATE_ACTIVE, LINK_WATCHER_ATTRIBUTE_VALIDATE_INACTIVE, \
        LINK_WATCHER_ATTRIBUTE_VLANID, LINK_WATCHER_ATTRIBUTE_SEND_ALWAYS

typedef struct {
    const char          *js_key;
    const char          *dbus_name;
    NMValueTypUnion      default_val;
    LinkWatcherAttribute link_watcher_attr;
    NMValueType          value_type;
} LinkWatcherAttrData;

static const LinkWatcherAttrData link_watcher_attr_datas[] = {
#define _INIT(_link_watcher_attr, _js_key, _dbus_name, _value_type, ...) \
    [_link_watcher_attr] = {.link_watcher_attr = (_link_watcher_attr),   \
                            .value_type        = (_value_type),          \
                            .js_key            = (""_js_key              \
                                                  ""),                   \
                            .dbus_name         = (""_dbus_name           \
                                                  ""),                   \
                            __VA_ARGS__}
    _INIT(LINK_WATCHER_ATTRIBUTE_NAME, "name", "name", NM_VALUE_TYPE_STRING, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_DELAY_UP, "delay_up", "delay-up", NM_VALUE_TYPE_INT, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_DELAY_DOWN, "delay_down", "delay-down", NM_VALUE_TYPE_INT, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_INTERVAL, "interval", "interval", NM_VALUE_TYPE_INT, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_INIT_WAIT, "init_wait", "init-wait", NM_VALUE_TYPE_INT, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_MISSED_MAX,
          "missed_max",
          "missed-max",
          NM_VALUE_TYPE_INT,
          .default_val.v_int = 3, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_SOURCE_HOST, "source_host", "source-host", NM_VALUE_TYPE_STRING, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_TARGET_HOST, "target_host", "target-host", NM_VALUE_TYPE_STRING, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_VALIDATE_ACTIVE,
          "validate_active",
          "validate-active",
          NM_VALUE_TYPE_BOOL, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_VALIDATE_INACTIVE,
          "validate_inactive",
          "validate-inactive",
          NM_VALUE_TYPE_BOOL, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_VLANID,
          "vlanid",
          "vlanid",
          NM_VALUE_TYPE_INT,
          .default_val.v_int = -1, ),
    _INIT(LINK_WATCHER_ATTRIBUTE_SEND_ALWAYS, "send_always", "send-always", NM_VALUE_TYPE_BOOL, ),
#undef _INIT
};

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

static const TeamAttrData *_team_attr_data_get(gboolean is_port, NMTeamAttribute team_attr);
static gpointer _team_setting_get_field(const NMTeamSetting *self, const TeamAttrData *attr_data);
static void     _link_watcher_to_json(const NMTeamLinkWatcher *link_watcher, GString *gstr);

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

static void
_team_attr_data_ASSERT(const TeamAttrData *attr_data)
{
#if NM_MORE_ASSERTS > 5
    nm_assert(attr_data);
    if (attr_data->for_port)
        nm_assert(attr_data == _team_attr_data_get(TRUE, attr_data->team_attr));
    if (attr_data->for_master)
        nm_assert(attr_data == _team_attr_data_get(FALSE, attr_data->team_attr));
    nm_assert((attr_data - team_attr_datas)
              == TEAM_ATTR_IDX(attr_data->for_port, attr_data->team_attr));
    nm_assert(attr_data->value_type > 0);
    nm_assert(attr_data->field_offset < sizeof(NMTeamSetting));
    nm_assert(attr_data->js_keys_len == NM_PTRARRAY_LEN(attr_data->js_keys));
    nm_assert(attr_data->property_name);
    {
        static int checked = 0;

        if (checked == 0) {
            checked = 1;

            for (attr_data = &team_attr_datas[TEAM_ATTR_IDX_CONFIG + 1];
                 attr_data < &team_attr_datas[G_N_ELEMENTS(team_attr_datas)];
                 attr_data++)
                _team_attr_data_ASSERT(attr_data);
        }
    }
#endif
}

static gboolean
_team_attr_data_is_relevant(const TeamAttrData *attr_data, gboolean is_port)
{
    return is_port ? attr_data->for_port : attr_data->for_master;
}

static const TeamAttrData *
_team_attr_data_get(gboolean is_port, NMTeamAttribute team_attr)
{
    const int idx = TEAM_ATTR_IDX(is_port, team_attr);

    nm_assert(idx >= 0 && idx < G_N_ELEMENTS(team_attr_datas));
    nm_assert(team_attr_datas[idx].team_attr == team_attr);
    nm_assert(_team_attr_data_is_relevant(&team_attr_datas[idx], is_port));

    return &team_attr_datas[idx];
}

static const TeamAttrData *
_team_attr_data_find_for_property_name(gboolean is_port, const char *property_name)
{
    const TeamAttrData *attr_data;

    for (attr_data = team_attr_datas; attr_data < &team_attr_datas[G_N_ELEMENTS(team_attr_datas)];
         attr_data++) {
        if (_team_attr_data_is_relevant(attr_data, is_port)
            && nm_streq(property_name, attr_data->property_name))
            return attr_data;
    }
    return NULL;
}

static int
_team_attr_data_cmp(const TeamAttrData *attr_data,
                    gboolean            is_port,
                    gconstpointer       val_a,
                    gconstpointer       val_b)
{
    const GPtrArray *v_ptrarray_a;
    const GPtrArray *v_ptrarray_b;
    guint            len;

    _team_attr_data_ASSERT(attr_data);
    nm_assert(val_a);
    nm_assert(val_b);

    if (attr_data->value_type != NM_VALUE_TYPE_UNSPEC)
        NM_CMP_RETURN(nm_value_type_cmp(attr_data->value_type, val_a, val_b));
    else if (attr_data->team_attr == NM_TEAM_ATTRIBUTE_LINK_WATCHERS) {
        v_ptrarray_a = *((const GPtrArray *const *) val_a);
        v_ptrarray_b = *((const GPtrArray *const *) val_b);
        len          = v_ptrarray_a ? v_ptrarray_a->len : 0u;
        NM_CMP_DIRECT(len, (v_ptrarray_b ? v_ptrarray_b->len : 0u));
        if (len > 0) {
            NM_CMP_RETURN(
                nm_team_link_watchers_cmp((const NMTeamLinkWatcher *const *) v_ptrarray_a->pdata,
                                          (const NMTeamLinkWatcher *const *) v_ptrarray_b->pdata,
                                          len,
                                          FALSE));
        }
    } else if (!is_port && attr_data->team_attr == NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH) {
        v_ptrarray_a = *((const GPtrArray *const *) val_a);
        v_ptrarray_b = *((const GPtrArray *const *) val_b);
        NM_CMP_RETURN(nm_strv_cmp_n(v_ptrarray_a ? (const char *const *) v_ptrarray_a->pdata : NULL,
                                    v_ptrarray_a ? v_ptrarray_a->len : 0u,
                                    v_ptrarray_b ? (const char *const *) v_ptrarray_b->pdata : NULL,
                                    v_ptrarray_b ? v_ptrarray_b->len : 0u));
    } else
        nm_assert_not_reached();
    return 0;
}

static gboolean
_team_attr_data_equal(const TeamAttrData *attr_data,
                      gboolean            is_port,
                      gconstpointer       val_a,
                      gconstpointer       val_b)
{
    return _team_attr_data_cmp(attr_data, is_port, val_a, val_b) == 0;
}

static void
_team_attr_data_copy(const TeamAttrData *attr_data,
                     gboolean            is_port,
                     gpointer            dst,
                     gconstpointer       src)
{
    GPtrArray       *v_ptrarray_dst;
    const GPtrArray *v_ptrarray_src;
    GPtrArray       *dst_array;
    guint            i, len;

    if (attr_data->value_type != NM_VALUE_TYPE_UNSPEC)
        nm_value_type_copy(attr_data->value_type, dst, src);
    else if (attr_data->team_attr == NM_TEAM_ATTRIBUTE_LINK_WATCHERS) {
        v_ptrarray_src = *((const GPtrArray *const *) src);
        v_ptrarray_dst = *((GPtrArray **) dst);
        len            = (v_ptrarray_src ? v_ptrarray_src->len : 0u);

        if (len == 0) {
            if (v_ptrarray_dst)
                g_ptr_array_set_size(v_ptrarray_dst, 0);
        } else {
            dst_array = g_ptr_array_new_full(len, (GDestroyNotify) nm_team_link_watcher_unref);
            for (i = 0; i < len; i++) {
                if (v_ptrarray_src->pdata[i]) {
                    nm_team_link_watcher_ref(v_ptrarray_src->pdata[i]);
                    g_ptr_array_add(dst_array, v_ptrarray_src->pdata[i]);
                }
            }
            if (v_ptrarray_dst)
                g_ptr_array_unref(v_ptrarray_dst);
            *((GPtrArray **) dst) = dst_array;
        }
    } else if (!is_port && attr_data->team_attr == NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH) {
        v_ptrarray_src = *((const GPtrArray *const *) src);
        v_ptrarray_dst = *((GPtrArray **) dst);
        len            = (v_ptrarray_src ? v_ptrarray_src->len : 0u);

        if (v_ptrarray_src && v_ptrarray_src->len > 0) {
            dst_array = g_ptr_array_new_full(v_ptrarray_src->len, g_free);
            for (i = 0; i < v_ptrarray_src->len; i++)
                g_ptr_array_add(dst_array, g_strdup(v_ptrarray_src->pdata[i]));
        } else
            dst_array = NULL;
        if (v_ptrarray_dst)
            g_ptr_array_unref(v_ptrarray_dst);
        *((GPtrArray **) dst) = dst_array;
    } else
        nm_assert_not_reached();
}

static void
_team_attr_data_to_json(const TeamAttrData *attr_data,
                        gboolean            is_port,
                        GString            *gstr,
                        gconstpointer       p_field)
{
    guint i;

    _team_attr_data_ASSERT(attr_data);
    nm_assert(p_field);

    nm_json_gstr_append_obj_name(gstr, attr_data->js_keys[attr_data->js_keys_len - 1], '\0');

    if (attr_data->value_type != NM_VALUE_TYPE_UNSPEC) {
        nm_value_type_to_json(attr_data->value_type, gstr, p_field);
        return;
    }

    if (attr_data->team_attr == NM_TEAM_ATTRIBUTE_LINK_WATCHERS) {
        const GPtrArray *v_ptrarray = *((const GPtrArray *const *) p_field);

        if (!v_ptrarray)
            g_string_append(gstr, "null");
        else if (v_ptrarray->len == 0)
            g_string_append(gstr, "[ ]");
        else if (v_ptrarray->len == 1)
            _link_watcher_to_json(v_ptrarray->pdata[0], gstr);
        else {
            g_string_append(gstr, "[ ");
            for (i = 0; i < v_ptrarray->len; i++) {
                if (i > 0)
                    nm_json_gstr_append_delimiter(gstr);
                _link_watcher_to_json(v_ptrarray->pdata[i], gstr);
            }
            g_string_append(gstr, " ]");
        }
        return;
    }

    if (!is_port && attr_data->team_attr == NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH) {
        const GPtrArray *v_ptrarray = *((const GPtrArray *const *) p_field);

        if (!v_ptrarray)
            g_string_append(gstr, "null");
        else {
            g_string_append(gstr, "[ ");
            for (i = 0; i < v_ptrarray->len; i++) {
                if (i > 0)
                    nm_json_gstr_append_delimiter(gstr);
                nm_json_gstr_append_string(gstr, v_ptrarray->pdata[i]);
            }
            g_string_append(gstr, i > 0 ? " ]" : "]");
        }
        return;
    }

    nm_assert_not_reached();
}

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

static void
_team_setting_ASSERT(const NMTeamSetting *self)
{
    nm_assert(self);
    nm_assert(!self->d._js_str_need_synthetize || !self->d._js_str);
#if NM_MORE_ASSERTS > 2
    if (!self->d.strict_validated) {
        nm_assert(!self->d._js_str_need_synthetize);
        nm_assert(self->d._js_str);
    }
    nm_assert(self->d.link_watchers);
    nm_assert(self->d.is_port || !self->d.master.runner_tx_hash
              || self->d.master.runner_tx_hash->len > 0);
#endif
}

static gboolean
_team_setting_has_field(const NMTeamSetting *self, const TeamAttrData *attr_data)
{
    _team_setting_ASSERT(self);
    return NM_FLAGS_ALL(self->d.has_fields_mask, nm_team_attribute_to_flags(attr_data->team_attr));
}

static gboolean
_team_setting_has_fields_any_v(const NMTeamSetting   *self,
                               const NMTeamAttribute *team_attrs,
                               gsize                  n_team_attrs)
{
    gsize i;

    for (i = 0; i < n_team_attrs; i++) {
        const TeamAttrData *attr_data = _team_attr_data_get(self->d.is_port, team_attrs[i]);

        if (_team_setting_has_field(self, attr_data))
            return TRUE;
    }
    return FALSE;
}

#define _team_setting_has_fields_any(self, ...)                              \
    _team_setting_has_fields_any_v((self),                                   \
                                   ((const NMTeamAttribute[]){__VA_ARGS__}), \
                                   NM_NARG(__VA_ARGS__))

static void
_team_setting_has_field_set(NMTeamSetting      *self,
                            const TeamAttrData *attr_data,
                            SetFieldModeEnum    set_field_mode)
{
    guint32 mask = nm_team_attribute_to_flags(attr_data->team_attr);

    _team_setting_ASSERT(self);

    switch (set_field_mode) {
    case SET_FIELD_MODE_UNSET:
        goto do_unset;
    case SET_FIELD_MODE_SET:
        goto do_set;
    case SET_FIELD_MODE_SET_UNLESS_DEFAULT:
        if (_team_attr_data_equal(attr_data,
                                  self->d.is_port,
                                  _team_setting_get_field(self, attr_data),
                                  &attr_data->default_val))
            goto do_unset;
        goto do_set;
    }
    nm_assert_not_reached();

do_unset:
    self->_data_priv.has_fields_mask &= ~mask;
    return;
do_set:
    self->_data_priv.has_fields_mask |= mask;
}

static gpointer
_team_setting_get_field(const NMTeamSetting *self, const TeamAttrData *attr_data)
{
    _team_setting_ASSERT(self);
    _team_attr_data_ASSERT(attr_data);
    nm_assert(_team_attr_data_is_relevant(attr_data, self->d.is_port));

#if NM_MORE_ASSERTS > 5
    if (attr_data->for_master && attr_data->team_attr == NM_TEAM_ATTRIBUTE_MASTER_RUNNER_SYS_PRIO)
        nm_assert((gpointer) (((char *) self) + attr_data->field_offset)
                  == &self->d.master.runner_sys_prio);
#endif

    return (((char *) self) + attr_data->field_offset);
}

static guint32
_team_setting_attribute_changed(NMTeamSetting      *self,
                                const TeamAttrData *attr_data,
                                gboolean            changed,
                                SetFieldModeEnum    set_field_mode,
                                ResetJsonEnum       reset_json)
{
    guint32 changed_flags;

    _team_setting_has_field_set(self, attr_data, set_field_mode);

    if (!reset_json) {
        return changed ? nm_team_attribute_to_flags(attr_data->team_attr) : 0u;
    }

    if (!changed) {
        /* a regular attribute was set, but the value did not change.
         *
         * If we previously were in non-strict mode, then
         *
         * - switch to strict-mode. Clearly the user set a regular attribute
         *   and hence now we want to validate the setting.
         *
         * - clear the JSON string. We need to regenerate it.
         */
        if (self->_data_priv.strict_validated)
            return 0;
        changed_flags = nm_team_attribute_to_flags(NM_TEAM_ATTRIBUTE_CONFIG);
    } else {
        changed_flags = nm_team_attribute_to_flags(attr_data->team_attr)
                        | nm_team_attribute_to_flags(NM_TEAM_ATTRIBUTE_CONFIG);
    }

    nm_clear_g_free((char **) &self->_data_priv._js_str);
    self->_data_priv.strict_validated        = TRUE;
    self->_data_priv._js_str_need_synthetize = TRUE;

    return changed_flags;
}

static guint32
_team_setting_attribute_changed_attr(NMTeamSetting   *self,
                                     NMTeamAttribute  team_attr,
                                     gboolean         changed,
                                     SetFieldModeEnum set_field_mode,
                                     ResetJsonEnum    reset_json)
{
    return _team_setting_attribute_changed(self,
                                           _team_attr_data_get(self->d.is_port, team_attr),
                                           changed,
                                           set_field_mode,
                                           reset_json);
}

static gboolean
_team_setting_field_to_json(const NMTeamSetting *self,
                            GString             *gstr,
                            gboolean             prepend_delimiter,
                            const TeamAttrData  *attr_data)
{
    if (!_team_setting_has_field(self, attr_data))
        return FALSE;

    if (prepend_delimiter)
        nm_json_gstr_append_delimiter(gstr);
    _team_attr_data_to_json(attr_data,
                            self->d.is_port,
                            gstr,
                            _team_setting_get_field(self, attr_data));
    return TRUE;
}

static gboolean
_team_setting_fields_to_json_maybe(const NMTeamSetting   *self,
                                   GString               *gstr,
                                   gboolean               prepend_delimiter,
                                   const NMTeamAttribute *team_attrs_lst,
                                   gsize                  team_attrs_lst_len)
{
    gsize    i;
    gboolean any_added = FALSE;

    for (i = 0; i < team_attrs_lst_len; i++) {
        if (_team_setting_field_to_json(self,
                                        gstr,
                                        prepend_delimiter,
                                        _team_attr_data_get(self->d.is_port, team_attrs_lst[i]))) {
            any_added         = TRUE;
            prepend_delimiter = TRUE;
        }
    }
    return any_added;
}

static guint32
_team_setting_set(NMTeamSetting         *self,
                  gboolean               modify,
                  const bool            *has_lst,
                  const NMValueTypUnion *val_lst)
{
    guint32             changed_flags = 0;
    const TeamAttrData *attr_data;

    nm_assert((!has_lst) == (!val_lst));

    for (attr_data = &team_attr_datas[TEAM_ATTR_IDX_CONFIG + 1];
         attr_data < &team_attr_datas[G_N_ELEMENTS(team_attr_datas)];
         attr_data++) {
        const NMValueTypUnion *p_val;
        gconstpointer          p_field;
        gboolean               has_field;

        if (!_team_attr_data_is_relevant(attr_data, self->d.is_port))
            continue;

        has_field = (has_lst && has_lst[attr_data->team_attr]);

        p_val = has_field ? &val_lst[attr_data->team_attr] : &attr_data->default_val;

        p_field = _team_setting_get_field(self, attr_data);

        if (!_team_attr_data_equal(attr_data, self->d.is_port, p_val, p_field)) {
            if (modify) {
                _team_attr_data_copy(attr_data, self->d.is_port, (gpointer) p_field, p_val);
            }
            changed_flags |= nm_team_attribute_to_flags(attr_data->team_attr);
        }

        if (modify) {
            _team_setting_has_field_set(self,
                                        attr_data,
                                        has_field ? SET_FIELD_MODE_SET : SET_FIELD_MODE_UNSET);
        }
    }

    return changed_flags;
}

static guint32
_team_setting_check_default(const NMTeamSetting *self)
{
    return _team_setting_set((NMTeamSetting *) self, FALSE, NULL, NULL);
}

static guint32
_team_setting_set_default(NMTeamSetting *self)
{
    return _team_setting_set(self, TRUE, NULL, NULL);
}

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

gconstpointer
_nm_team_setting_value_get(const NMTeamSetting *self,
                           NMTeamAttribute      team_attr,
                           NMValueType          value_type)
{
    const TeamAttrData *attr_data = _team_attr_data_get(self->d.is_port, team_attr);

    nm_assert(value_type == attr_data->value_type);

    nm_assert(_team_setting_has_field(self, attr_data)
              || _team_attr_data_equal(attr_data,
                                       self->d.is_port,
                                       _team_setting_get_field(self, attr_data),
                                       &attr_data->default_val));
    return _team_setting_get_field(self, attr_data);
}

static guint32
_team_setting_value_set(NMTeamSetting      *self,
                        const TeamAttrData *attr_data,
                        gconstpointer       val,
                        SetFieldModeEnum    set_field_mode,
                        ResetJsonEnum       reset_json)
{
    gpointer p_field;
    gboolean changed;

    nm_assert(self);
    _team_attr_data_ASSERT(attr_data);
    nm_assert(val);

    p_field = _team_setting_get_field(self, attr_data);

    changed = !_team_attr_data_equal(attr_data, self->d.is_port, p_field, val);
    if (changed)
        nm_value_type_copy(attr_data->value_type, p_field, val);
    return _team_setting_attribute_changed(self, attr_data, changed, set_field_mode, reset_json);
}

guint32
nm_team_setting_value_reset(NMTeamSetting  *self,
                            NMTeamAttribute team_attr,
                            gboolean        to_default /* or else unset */)
{
    const TeamAttrData *attr_data;

    nm_assert(self);

    attr_data = _team_attr_data_get(self->d.is_port, team_attr);

    return _team_setting_value_set(self,
                                   attr_data,
                                   &attr_data->default_val,
                                   to_default ? SET_FIELD_MODE_SET : SET_FIELD_MODE_UNSET,
                                   RESET_JSON_YES);
}

guint32
_nm_team_setting_value_set(NMTeamSetting  *self,
                           NMTeamAttribute team_attr,
                           NMValueType     value_type,
                           gconstpointer   val)
{
    const TeamAttrData *attr_data;

    nm_assert(self);

    attr_data = _team_attr_data_get(self->d.is_port, team_attr);

    nm_assert(value_type == attr_data->value_type);

    return _team_setting_value_set(self,
                                   attr_data,
                                   val,
                                   SET_FIELD_MODE_SET_UNLESS_DEFAULT,
                                   RESET_JSON_YES);
}

guint32
nm_team_setting_value_link_watchers_add(NMTeamSetting *self, const NMTeamLinkWatcher *link_watcher)
{
    guint    i;
    gboolean changed;

    for (i = 0; i < self->d.link_watchers->len; i++) {
        if (nm_team_link_watcher_equal(self->d.link_watchers->pdata[i], link_watcher)) {
            changed = FALSE;
            goto out;
        }
    }
    changed = TRUE;
    g_ptr_array_add((GPtrArray *) self->d.link_watchers,
                    _nm_team_link_watcher_ref((NMTeamLinkWatcher *) link_watcher));
out:
    return _team_setting_attribute_changed_attr(self,
                                                NM_TEAM_ATTRIBUTE_LINK_WATCHERS,
                                                changed,
                                                SET_FIELD_MODE_SET_UNLESS_DEFAULT,
                                                RESET_JSON_YES);
}

guint32
nm_team_setting_value_link_watchers_remove_by_value(NMTeamSetting           *self,
                                                    const NMTeamLinkWatcher *link_watcher)
{
    guint i;

    for (i = 0; i < self->d.link_watchers->len; i++) {
        if (nm_team_link_watcher_equal(self->d.link_watchers->pdata[i], link_watcher))
            return nm_team_setting_value_link_watchers_remove(self, i);
    }
    return _team_setting_attribute_changed_attr(self,
                                                NM_TEAM_ATTRIBUTE_LINK_WATCHERS,
                                                FALSE,
                                                SET_FIELD_MODE_SET_UNLESS_DEFAULT,
                                                RESET_JSON_YES);
}

guint32
nm_team_setting_value_link_watchers_remove(NMTeamSetting *self, guint idx)
{
    g_ptr_array_remove_index((GPtrArray *) self->d.link_watchers, idx);
    return _team_setting_attribute_changed_attr(self,
                                                NM_TEAM_ATTRIBUTE_LINK_WATCHERS,
                                                TRUE,
                                                SET_FIELD_MODE_SET_UNLESS_DEFAULT,
                                                RESET_JSON_YES);
}

static guint32
_team_setting_value_link_watchers_set_list(NMTeamSetting                  *self,
                                           const NMTeamLinkWatcher *const *arr,
                                           guint                           len,
                                           SetFieldModeEnum                set_field_mode,
                                           ResetJsonEnum                   reset_json)
{
    gboolean changed;

    if (self->d.link_watchers->len == len
        && nm_team_link_watchers_cmp(
               (const NMTeamLinkWatcher *const *) self->d.link_watchers->pdata,
               arr,
               len,
               FALSE)
               == 0) {
        changed = FALSE;
        goto out;
    }

    changed = TRUE;
    if (len == 0)
        g_ptr_array_set_size((GPtrArray *) self->d.link_watchers, 0);
    else {
        _nm_unused gs_unref_ptrarray GPtrArray *old_val_destroy = NULL;
        guint                                   i;

        old_val_destroy = (GPtrArray *) g_steal_pointer(&self->_data_priv.link_watchers);

        self->_data_priv.link_watchers =
            g_ptr_array_new_with_free_func((GDestroyNotify) nm_team_link_watcher_unref);

        for (i = 0; i < len; i++) {
            if (arr[i]) {
                g_ptr_array_add((GPtrArray *) self->d.link_watchers,
                                _nm_team_link_watcher_ref((NMTeamLinkWatcher *) arr[i]));
            }
        }
    }

out:
    return _team_setting_attribute_changed_attr(self,
                                                NM_TEAM_ATTRIBUTE_LINK_WATCHERS,
                                                changed,
                                                set_field_mode,
                                                reset_json);
}

guint32
nm_team_setting_value_link_watchers_set_list(NMTeamSetting                  *self,
                                             const NMTeamLinkWatcher *const *arr,
                                             guint                           len)
{
    return _team_setting_value_link_watchers_set_list(self,
                                                      arr,
                                                      len,
                                                      SET_FIELD_MODE_SET_UNLESS_DEFAULT,
                                                      RESET_JSON_YES);
}

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

guint32
nm_team_setting_value_master_runner_tx_hash_add(NMTeamSetting *self, const char *txhash)
{
    gboolean changed;
    guint    i;

    if (!self->d.master.runner_tx_hash)
        self->_data_priv.master.runner_tx_hash = g_ptr_array_new_with_free_func(g_free);
    else {
        for (i = 0; i < self->d.master.runner_tx_hash->len; i++) {
            if (nm_streq(txhash, self->d.master.runner_tx_hash->pdata[i])) {
                changed = FALSE;
                goto out;
            }
        }
    }
    changed = TRUE;
    g_ptr_array_add((GPtrArray *) self->d.master.runner_tx_hash, g_strdup(txhash));
out:
    return _team_setting_attribute_changed_attr(self,
                                                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH,
                                                changed,
                                                SET_FIELD_MODE_SET_UNLESS_DEFAULT,
                                                RESET_JSON_YES);
}

guint32
nm_team_setting_value_master_runner_tx_hash_remove(NMTeamSetting *self, guint idx)
{
    g_ptr_array_remove_index((GPtrArray *) self->d.master.runner_tx_hash, idx);
    return _team_setting_attribute_changed_attr(self,
                                                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH,
                                                TRUE,
                                                SET_FIELD_MODE_SET_UNLESS_DEFAULT,
                                                RESET_JSON_YES);
}

static guint32
_team_setting_value_master_runner_tx_hash_set_list(NMTeamSetting     *self,
                                                   const char *const *arr,
                                                   guint              len,
                                                   SetFieldModeEnum   set_field_mode,
                                                   ResetJsonEnum      reset_json)
{
    _nm_unused gs_unref_ptrarray GPtrArray *old_val_destroy = NULL;
    gboolean                                changed;
    guint                                   i;

    if (nm_strv_cmp_n(self->d.master.runner_tx_hash
                          ? (const char *const *) self->d.master.runner_tx_hash->pdata
                          : NULL,
                      self->d.master.runner_tx_hash ? self->d.master.runner_tx_hash->len : 0u,
                      arr,
                      len)
        == 0) {
        changed = FALSE;
        goto out;
    }

    changed = TRUE;

    old_val_destroy = (GPtrArray *) g_steal_pointer(&self->_data_priv.master.runner_tx_hash);

    for (i = 0; i < len; i++) {
        if (!arr[i])
            continue;
        if (!self->d.master.runner_tx_hash)
            self->_data_priv.master.runner_tx_hash = g_ptr_array_new_with_free_func(g_free);
        g_ptr_array_add((GPtrArray *) self->d.master.runner_tx_hash, g_strdup(arr[i]));
    }

out:
    return _team_setting_attribute_changed_attr(self,
                                                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH,
                                                changed,
                                                set_field_mode,
                                                reset_json);
}

guint32
nm_team_setting_value_master_runner_tx_hash_set_list(NMTeamSetting     *self,
                                                     const char *const *arr,
                                                     guint              len)
{
    return _team_setting_value_master_runner_tx_hash_set_list(self,
                                                              arr,
                                                              len,
                                                              SET_FIELD_MODE_SET_UNLESS_DEFAULT,
                                                              RESET_JSON_YES);
}

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

#define _LINK_WATCHER_ATTR_GET(args, link_watcher_attribute, _value_type)                         \
    ({                                                                                            \
        const NMValueTypUnioMaybe *const _args = (args);                                          \
                                                                                                  \
        nm_assert(link_watcher_attr_datas[(link_watcher_attribute)].value_type == (_value_type)); \
                                                                                                  \
        _args[(link_watcher_attribute)].has                                                       \
            ? &_args[(link_watcher_attribute)].val                                                \
            : &link_watcher_attr_datas[(link_watcher_attribute)].default_val;                     \
    })
#define _LINK_WATCHER_ATTR_GET_BOOL(args, link_watcher_attribute) \
    (_LINK_WATCHER_ATTR_GET(args, link_watcher_attribute, NM_VALUE_TYPE_BOOL)->v_bool)
#define _LINK_WATCHER_ATTR_GET_INT(args, link_watcher_attribute) \
    (_LINK_WATCHER_ATTR_GET(args, link_watcher_attribute, NM_VALUE_TYPE_INT)->v_int)
#define _LINK_WATCHER_ATTR_GET_STRING(args, link_watcher_attribute) \
    (_LINK_WATCHER_ATTR_GET(args, link_watcher_attribute, NM_VALUE_TYPE_STRING)->v_string)

#define _LINK_WATCHER_ATTR_SET(args, link_watcher_attribute, _value_type, c_type, val)            \
    ({                                                                                            \
        nm_assert(link_watcher_attr_datas[(link_watcher_attribute)].value_type == (_value_type)); \
                                                                                                  \
        NM_VALUE_TYP_UNIO_MAYBE_SET(&(args)[(link_watcher_attribute)], c_type, (val));            \
    })
#define _LINK_WATCHER_ATTR_SET_BOOL(args, link_watcher_attribute, val) \
    _LINK_WATCHER_ATTR_SET((args), (link_watcher_attribute), NM_VALUE_TYPE_BOOL, v_bool, (val))
#define _LINK_WATCHER_ATTR_SET_INT(args, link_watcher_attribute, val) \
    _LINK_WATCHER_ATTR_SET((args), (link_watcher_attribute), NM_VALUE_TYPE_INT, v_int, (val))
#define _LINK_WATCHER_ATTR_SET_STRING(args, link_watcher_attribute, val) \
    _LINK_WATCHER_ATTR_SET((args), (link_watcher_attribute), NM_VALUE_TYPE_STRING, v_string, (val))

static void
_link_watcher_unpack(const NMTeamLinkWatcher *link_watcher,
                     NMValueTypUnioMaybe      args[static G_N_ELEMENTS(link_watcher_attr_datas)])
{
    const char                   *v_name = nm_team_link_watcher_get_name(link_watcher);
    NMTeamLinkWatcherArpPingFlags v_arp_ping_flags;

    memset(args, 0, sizeof(args[0]) * G_N_ELEMENTS(link_watcher_attr_datas));

    _LINK_WATCHER_ATTR_SET_STRING(args, LINK_WATCHER_ATTRIBUTE_NAME, v_name);

    if (nm_streq(v_name, NM_TEAM_LINK_WATCHER_ETHTOOL)) {
        _LINK_WATCHER_ATTR_SET_INT(args,
                                   LINK_WATCHER_ATTRIBUTE_DELAY_UP,
                                   nm_team_link_watcher_get_delay_up(link_watcher));
        _LINK_WATCHER_ATTR_SET_INT(args,
                                   LINK_WATCHER_ATTRIBUTE_DELAY_DOWN,
                                   nm_team_link_watcher_get_delay_down(link_watcher));
    } else if (NM_IN_STRSET(v_name,
                            NM_TEAM_LINK_WATCHER_NSNA_PING,
                            NM_TEAM_LINK_WATCHER_ARP_PING)) {
        _LINK_WATCHER_ATTR_SET_INT(args,
                                   LINK_WATCHER_ATTRIBUTE_INIT_WAIT,
                                   nm_team_link_watcher_get_init_wait(link_watcher));
        _LINK_WATCHER_ATTR_SET_INT(args,
                                   LINK_WATCHER_ATTRIBUTE_INTERVAL,
                                   nm_team_link_watcher_get_interval(link_watcher));
        _LINK_WATCHER_ATTR_SET_INT(args,
                                   LINK_WATCHER_ATTRIBUTE_MISSED_MAX,
                                   nm_team_link_watcher_get_missed_max(link_watcher));
        _LINK_WATCHER_ATTR_SET_STRING(args,
                                      LINK_WATCHER_ATTRIBUTE_TARGET_HOST,
                                      nm_team_link_watcher_get_target_host(link_watcher));
        if (nm_streq(v_name, NM_TEAM_LINK_WATCHER_ARP_PING)) {
            v_arp_ping_flags = nm_team_link_watcher_get_flags(link_watcher);
            _LINK_WATCHER_ATTR_SET_INT(args,
                                       LINK_WATCHER_ATTRIBUTE_VLANID,
                                       nm_team_link_watcher_get_vlanid(link_watcher));
            _LINK_WATCHER_ATTR_SET_STRING(args,
                                          LINK_WATCHER_ATTRIBUTE_SOURCE_HOST,
                                          nm_team_link_watcher_get_source_host(link_watcher));
            _LINK_WATCHER_ATTR_SET_BOOL(
                args,
                LINK_WATCHER_ATTRIBUTE_VALIDATE_ACTIVE,
                NM_FLAGS_HAS(v_arp_ping_flags, NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_ACTIVE));
            _LINK_WATCHER_ATTR_SET_BOOL(
                args,
                LINK_WATCHER_ATTRIBUTE_VALIDATE_INACTIVE,
                NM_FLAGS_HAS(v_arp_ping_flags,
                             NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_INACTIVE));
            _LINK_WATCHER_ATTR_SET_BOOL(
                args,
                LINK_WATCHER_ATTRIBUTE_SEND_ALWAYS,
                NM_FLAGS_HAS(v_arp_ping_flags, NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_SEND_ALWAYS));
        }
    }
}

static void
_link_watcher_to_json(const NMTeamLinkWatcher *link_watcher, GString *gstr)
{
    NMValueTypUnioMaybe args[G_N_ELEMENTS(link_watcher_attr_datas)];
    int                 i;
    gboolean            is_first = TRUE;

    if (!link_watcher) {
        g_string_append(gstr, "null");
        return;
    }

    _link_watcher_unpack(link_watcher, args);

    g_string_append(gstr, "{ ");

    for (i = 0; i < (int) G_N_ELEMENTS(link_watcher_attr_datas); i++) {
        const NMValueTypUnioMaybe *p_val     = &args[i];
        const LinkWatcherAttrData *attr_data = &link_watcher_attr_datas[i];

        if (!p_val->has)
            continue;
        if (nm_value_type_equal(attr_data->value_type, &attr_data->default_val, &p_val->val))
            continue;

        if (is_first)
            is_first = FALSE;
        else
            nm_json_gstr_append_delimiter(gstr);
        nm_json_gstr_append_obj_name(gstr, attr_data->js_key, '\0');
        nm_value_type_to_json(attr_data->value_type, gstr, &p_val->val);
    }

    g_string_append(gstr, " }");
}

static NMTeamLinkWatcher *
_link_watcher_from_json(const NMJsonVt  *vt,
                        const nm_json_t *root_js_obj,
                        gboolean        *out_unrecognized_content)
{
    NMValueTypUnioMaybe args[G_N_ELEMENTS(link_watcher_attr_datas)] = {};
    const char         *j_key;
    nm_json_t          *j_val;
    const char         *v_name;
    NMTeamLinkWatcher  *result = NULL;

    if (!nm_json_is_object(root_js_obj))
        goto fail;

    nm_json_object_foreach (vt, (nm_json_t *) root_js_obj, j_key, j_val) {
        const LinkWatcherAttrData *attr_data = NULL;
        NMValueTypUnioMaybe       *parse_result;

        if (j_key) {
            int i;

            for (i = 0; i < (int) G_N_ELEMENTS(link_watcher_attr_datas); i++) {
                if (nm_streq(link_watcher_attr_datas[i].js_key, j_key)) {
                    attr_data = &link_watcher_attr_datas[i];
                    break;
                }
            }
        }
        if (!attr_data) {
            *out_unrecognized_content = TRUE;
            continue;
        }

        parse_result = &args[attr_data->link_watcher_attr];

        if (parse_result->has)
            *out_unrecognized_content = TRUE;

        if (!nm_value_type_from_json(vt, attr_data->value_type, j_val, &parse_result->val))
            *out_unrecognized_content = TRUE;
        else
            parse_result->has = TRUE;
    }

#define _PARSE_RESULT_HAS_UNEXPECTED_ATTRIBUTES(_parse_results, ...)                            \
    ({                                                                                          \
        int _i;                                                                                 \
                                                                                                \
        for (_i = 0; _i < (int) G_N_ELEMENTS((_parse_results)); _i++) {                         \
            if ((_parse_results)[_i].has && !NM_IN_SET((LinkWatcherAttribute) _i, __VA_ARGS__)) \
                break;                                                                          \
        }                                                                                       \
                                                                                                \
        (_i == (int) G_N_ELEMENTS((_parse_results)));                                           \
    })

    v_name = _LINK_WATCHER_ATTR_GET_STRING(args, LINK_WATCHER_ATTRIBUTE_NAME);

    if (nm_streq0(v_name, NM_TEAM_LINK_WATCHER_ETHTOOL)) {
        if (_PARSE_RESULT_HAS_UNEXPECTED_ATTRIBUTES(args,
                                                    _EXPECTED_LINK_WATCHER_ATTRIBUTES_ETHTOOL))
            *out_unrecognized_content = TRUE;
        result = nm_team_link_watcher_new_ethtool(
            _LINK_WATCHER_ATTR_GET_INT(args, LINK_WATCHER_ATTRIBUTE_DELAY_UP),
            _LINK_WATCHER_ATTR_GET_INT(args, LINK_WATCHER_ATTRIBUTE_DELAY_DOWN),
            NULL);
    } else if (nm_streq0(v_name, NM_TEAM_LINK_WATCHER_NSNA_PING)) {
        if (_PARSE_RESULT_HAS_UNEXPECTED_ATTRIBUTES(args,
                                                    _EXPECTED_LINK_WATCHER_ATTRIBUTES_NSNA_PING))
            *out_unrecognized_content = TRUE;
        result = nm_team_link_watcher_new_nsna_ping(
            _LINK_WATCHER_ATTR_GET_INT(args, LINK_WATCHER_ATTRIBUTE_INIT_WAIT),
            _LINK_WATCHER_ATTR_GET_INT(args, LINK_WATCHER_ATTRIBUTE_INTERVAL),
            _LINK_WATCHER_ATTR_GET_INT(args, LINK_WATCHER_ATTRIBUTE_MISSED_MAX),
            _LINK_WATCHER_ATTR_GET_STRING(args, LINK_WATCHER_ATTRIBUTE_TARGET_HOST),
            NULL);
    } else if (nm_streq0(v_name, NM_TEAM_LINK_WATCHER_ARP_PING)) {
        NMTeamLinkWatcherArpPingFlags v_flags = NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_NONE;

        if (_PARSE_RESULT_HAS_UNEXPECTED_ATTRIBUTES(args,
                                                    _EXPECTED_LINK_WATCHER_ATTRIBUTES_ARP_PING))
            *out_unrecognized_content = TRUE;

        if (_LINK_WATCHER_ATTR_GET_BOOL(args, LINK_WATCHER_ATTRIBUTE_VALIDATE_ACTIVE))
            v_flags |= NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_ACTIVE;
        if (_LINK_WATCHER_ATTR_GET_BOOL(args, LINK_WATCHER_ATTRIBUTE_VALIDATE_INACTIVE))
            v_flags |= NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_INACTIVE;
        if (_LINK_WATCHER_ATTR_GET_BOOL(args, LINK_WATCHER_ATTRIBUTE_SEND_ALWAYS))
            v_flags |= NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_SEND_ALWAYS;

        result = nm_team_link_watcher_new_arp_ping2(
            _LINK_WATCHER_ATTR_GET_INT(args, LINK_WATCHER_ATTRIBUTE_INIT_WAIT),
            _LINK_WATCHER_ATTR_GET_INT(args, LINK_WATCHER_ATTRIBUTE_INTERVAL),
            _LINK_WATCHER_ATTR_GET_INT(args, LINK_WATCHER_ATTRIBUTE_MISSED_MAX),
            _LINK_WATCHER_ATTR_GET_INT(args, LINK_WATCHER_ATTRIBUTE_VLANID),
            _LINK_WATCHER_ATTR_GET_STRING(args, LINK_WATCHER_ATTRIBUTE_TARGET_HOST),
            _LINK_WATCHER_ATTR_GET_STRING(args, LINK_WATCHER_ATTRIBUTE_SOURCE_HOST),
            v_flags,
            NULL);
    }

    if (result)
        return result;
fail:
    *out_unrecognized_content = TRUE;
    return NULL;
}

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

static GVariant *
_link_watcher_to_variant(const NMTeamLinkWatcher *link_watcher)
{
    NMValueTypUnioMaybe args[G_N_ELEMENTS(link_watcher_attr_datas)];
    GVariantBuilder     builder;
    int                 i;

    if (!link_watcher)
        return NULL;

    _link_watcher_unpack(link_watcher, args);

    if (!args[LINK_WATCHER_ATTRIBUTE_NAME].has)
        return NULL;

    g_variant_builder_init(&builder, G_VARIANT_TYPE("a{sv}"));

    for (i = 0; i < (int) G_N_ELEMENTS(link_watcher_attr_datas); i++) {
        const NMValueTypUnioMaybe *p_val     = &args[i];
        const LinkWatcherAttrData *attr_data = &link_watcher_attr_datas[i];
        GVariant                  *v;

        if (!p_val->has)
            continue;
        if (nm_value_type_equal(attr_data->value_type, &attr_data->default_val, &p_val->val))
            continue;

        if (attr_data->value_type == NM_VALUE_TYPE_INT)
            v = g_variant_new_int32(p_val->val.v_int);
        else {
            v = nm_value_type_to_variant(attr_data->value_type, &p_val->val);
        }
        if (!v)
            continue;

        nm_assert(g_variant_is_floating(v));
        g_variant_builder_add(&builder, "{sv}", attr_data->dbus_name, v);
    }

    return g_variant_builder_end(&builder);
}

#define _LINK_WATCHER_ATTR_VARGET(variants, link_watcher_attribute, _value_type, c_type, _cmd)    \
    ({                                                                                            \
        GVariant *const *_variants = (variants);                                                  \
        GVariant        *_cc;                                                                     \
                                                                                                  \
        nm_assert(link_watcher_attr_datas[(link_watcher_attribute)].value_type == (_value_type)); \
                                                                                                  \
        (_cc = _variants[(link_watcher_attribute)])                                               \
            ? (_cmd)                                                                              \
            : link_watcher_attr_datas[(link_watcher_attribute)].default_val.c_type;               \
    })
#define _LINK_WATCHER_ATTR_VARGET_BOOL(variants, link_watcher_attribute) \
    (_LINK_WATCHER_ATTR_VARGET(variants,                                 \
                               link_watcher_attribute,                   \
                               NM_VALUE_TYPE_BOOL,                       \
                               v_bool,                                   \
                               g_variant_get_boolean(_cc)))
#define _LINK_WATCHER_ATTR_VARGET_INT(variants, link_watcher_attribute) \
    (_LINK_WATCHER_ATTR_VARGET(variants,                                \
                               link_watcher_attribute,                  \
                               NM_VALUE_TYPE_INT,                       \
                               v_int,                                   \
                               g_variant_get_int32(_cc)))
#define _LINK_WATCHER_ATTR_VARGET_STRING(variants, link_watcher_attribute) \
    (_LINK_WATCHER_ATTR_VARGET(variants,                                   \
                               link_watcher_attribute,                     \
                               NM_VALUE_TYPE_STRING,                       \
                               v_string,                                   \
                               g_variant_get_string(_cc, NULL)))

static void
_variants_list_link_watcher_unref_auto(GVariant *(*p_variants)[])
{
    int i;

    for (i = 0; i < (int) G_N_ELEMENTS(link_watcher_attr_datas); i++)
        nm_g_variant_unref((*p_variants)[i]);
}

static NMTeamLinkWatcher *
_link_watcher_from_variant(GVariant *watcher_var, gboolean strict_parsing, GError **error)
{
    nm_auto(_variants_list_link_watcher_unref_auto)
        GVariant *variants[G_N_ELEMENTS(link_watcher_attr_datas)] = {
            NULL,
        };
    const char  *v_key;
    GVariant    *v_val;
    const char  *v_name;
    GVariantIter iter;

    g_return_val_if_fail(g_variant_is_of_type(watcher_var, G_VARIANT_TYPE("a{sv}")), NULL);

    g_variant_iter_init(&iter, watcher_var);
    while (g_variant_iter_next(&iter, "{&sv}", &v_key, &v_val)) {
        _nm_unused gs_unref_variant GVariant *v_val_free = v_val;
        const LinkWatcherAttrData            *attr_data  = NULL;
        const GVariantType                   *variant_type;
        int                                   i;

        for (i = 0; i < (int) G_N_ELEMENTS(link_watcher_attr_datas); i++) {
            if (nm_streq(link_watcher_attr_datas[i].dbus_name, v_key)) {
                attr_data = &link_watcher_attr_datas[i];
                break;
            }
        }
        if (!attr_data) {
            if (strict_parsing) {
                g_set_error(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("invalid D-Bus property \"%s\""),
                            v_key);
                return NULL;
            }
            continue;
        }

        if (attr_data->value_type == NM_VALUE_TYPE_INT)
            variant_type = G_VARIANT_TYPE_INT32;
        else
            variant_type = nm_value_type_get_variant_type(attr_data->value_type);

        if (!g_variant_is_of_type(v_val, variant_type)) {
            if (strict_parsing) {
                g_set_error(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("invalid D-Bus property \"%s\""),
                            v_key);
                return NULL;
            }
            continue;
        }

        if (variants[attr_data->link_watcher_attr]) {
            if (strict_parsing) {
                g_set_error(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("duplicate D-Bus property \"%s\""),
                            v_key);
                return NULL;
            }
            g_variant_unref(variants[attr_data->link_watcher_attr]);
        }
        variants[attr_data->link_watcher_attr] = g_steal_pointer(&v_val_free);
    }

#define _VARIANTS_HAVE_UNEXPECTED_ATTRIBUTES(_type, _variants, _error, ...)              \
    ({                                                                                   \
        int      _i;                                                                     \
        gboolean _has_error = FALSE;                                                     \
                                                                                         \
        for (_i = 0; _i < (int) G_N_ELEMENTS((_variants)); _i++) {                       \
            if ((_variants)[_i] && !NM_IN_SET((LinkWatcherAttribute) _i, __VA_ARGS__)) { \
                _has_error = TRUE;                                                       \
                g_set_error(_error,                                                      \
                            NM_CONNECTION_ERROR,                                         \
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,                        \
                            _("invalid D-Bus property \"%s\" for \"%s\""),               \
                            link_watcher_attr_datas[_i].dbus_name,                       \
                            _type);                                                      \
                break;                                                                   \
            }                                                                            \
        }                                                                                \
                                                                                         \
        _has_error;                                                                      \
    })

    v_name = _LINK_WATCHER_ATTR_VARGET_STRING(variants, LINK_WATCHER_ATTRIBUTE_NAME);

    if (nm_streq0(v_name, NM_TEAM_LINK_WATCHER_ETHTOOL)) {
        if (strict_parsing
            && _VARIANTS_HAVE_UNEXPECTED_ATTRIBUTES(v_name,
                                                    variants,
                                                    error,
                                                    _EXPECTED_LINK_WATCHER_ATTRIBUTES_ETHTOOL))
            return NULL;
        return nm_team_link_watcher_new_ethtool(
            _LINK_WATCHER_ATTR_VARGET_INT(variants, LINK_WATCHER_ATTRIBUTE_DELAY_UP),
            _LINK_WATCHER_ATTR_VARGET_INT(variants, LINK_WATCHER_ATTRIBUTE_DELAY_DOWN),
            strict_parsing ? error : NULL);
    }

    if (nm_streq0(v_name, NM_TEAM_LINK_WATCHER_NSNA_PING)) {
        if (strict_parsing
            && _VARIANTS_HAVE_UNEXPECTED_ATTRIBUTES(v_name,
                                                    variants,
                                                    error,
                                                    _EXPECTED_LINK_WATCHER_ATTRIBUTES_NSNA_PING))
            return NULL;
        return nm_team_link_watcher_new_nsna_ping(
            _LINK_WATCHER_ATTR_VARGET_INT(variants, LINK_WATCHER_ATTRIBUTE_INIT_WAIT),
            _LINK_WATCHER_ATTR_VARGET_INT(variants, LINK_WATCHER_ATTRIBUTE_INTERVAL),
            _LINK_WATCHER_ATTR_VARGET_INT(variants, LINK_WATCHER_ATTRIBUTE_MISSED_MAX),
            _LINK_WATCHER_ATTR_VARGET_STRING(variants, LINK_WATCHER_ATTRIBUTE_TARGET_HOST),
            strict_parsing ? error : NULL);
    }

    if (nm_streq0(v_name, NM_TEAM_LINK_WATCHER_ARP_PING)) {
        NMTeamLinkWatcherArpPingFlags v_flags = NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_NONE;

        if (strict_parsing
            && _VARIANTS_HAVE_UNEXPECTED_ATTRIBUTES(v_name,
                                                    variants,
                                                    error,
                                                    _EXPECTED_LINK_WATCHER_ATTRIBUTES_ARP_PING))
            return NULL;

        if (_LINK_WATCHER_ATTR_VARGET_BOOL(variants, LINK_WATCHER_ATTRIBUTE_VALIDATE_ACTIVE))
            v_flags |= NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_ACTIVE;
        if (_LINK_WATCHER_ATTR_VARGET_BOOL(variants, LINK_WATCHER_ATTRIBUTE_VALIDATE_INACTIVE))
            v_flags |= NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_INACTIVE;
        if (_LINK_WATCHER_ATTR_VARGET_BOOL(variants, LINK_WATCHER_ATTRIBUTE_SEND_ALWAYS))
            v_flags |= NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_SEND_ALWAYS;

        return nm_team_link_watcher_new_arp_ping2(
            _LINK_WATCHER_ATTR_VARGET_INT(variants, LINK_WATCHER_ATTRIBUTE_INIT_WAIT),
            _LINK_WATCHER_ATTR_VARGET_INT(variants, LINK_WATCHER_ATTRIBUTE_INTERVAL),
            _LINK_WATCHER_ATTR_VARGET_INT(variants, LINK_WATCHER_ATTRIBUTE_MISSED_MAX),
            _LINK_WATCHER_ATTR_VARGET_INT(variants, LINK_WATCHER_ATTRIBUTE_VLANID),
            _LINK_WATCHER_ATTR_VARGET_STRING(variants, LINK_WATCHER_ATTRIBUTE_TARGET_HOST),
            _LINK_WATCHER_ATTR_VARGET_STRING(variants, LINK_WATCHER_ATTRIBUTE_SOURCE_HOST),
            v_flags,
            strict_parsing ? error : NULL);
    }

    if (strict_parsing) {
        g_set_error(error,
                    NM_CONNECTION_ERROR,
                    NM_CONNECTION_ERROR_INVALID_PROPERTY,
                    _("unknown link-watcher name \"%s\""),
                    v_name);
    }
    return NULL;
}

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

/**
 * _nm_utils_team_link_watchers_to_variant:
 * @link_watchers: (element-type NMTeamLinkWatcher): array of #NMTeamLinkWatcher
 *
 * Utility function to convert a #GPtrArray of #NMTeamLinkWatcher objects
 * representing link watcher configuration for team devices into a #GVariant
 * of type 'aa{sv}' representing an array of link watchers.
 *
 * Returns: (transfer full): a new floating #GVariant representing link watchers.
 **/
GVariant *
_nm_utils_team_link_watchers_to_variant(const GPtrArray *link_watchers)
{
    GVariantBuilder builder;
    guint           i;

    g_variant_builder_init(&builder, G_VARIANT_TYPE("aa{sv}"));
    if (link_watchers) {
        for (i = 0; i < link_watchers->len; i++) {
            g_variant_builder_add(&builder,
                                  "@a{sv}",
                                  _link_watcher_to_variant(link_watchers->pdata[i]));
        }
    }
    return g_variant_builder_end(&builder);
}

/**
 * _nm_utils_team_link_watchers_from_variant:
 * @value: a #GVariant of type 'aa{sv}'
 * @strict_parsing: whether to parse strictly or ignore everything invalid.
 * @error: error reason.
 *
 * Utility function to convert a #GVariant representing a list of team link
 * watchers int a #GPtrArray of #NMTeamLinkWatcher objects.
 *
 * Returns: (transfer full) (element-type NMTeamLinkWatcher): a newly allocated
 *   #GPtrArray of #NMTeamLinkWatcher objects.
 *
 * Note that if you provide an @error, then the function can only fail (and return %NULL)
 * or succeed (and not return %NULL). If you don't provide an @error, then the function
 * never returns %NULL.
 **/
GPtrArray *
_nm_utils_team_link_watchers_from_variant(GVariant *value, gboolean strict_parsing, GError **error)
{
    gs_unref_ptrarray GPtrArray *link_watchers = NULL;
    GVariantIter                 iter;
    GVariant                    *watcher_var;

    g_return_val_if_fail(g_variant_is_of_type(value, G_VARIANT_TYPE("aa{sv}")), NULL);

    link_watchers = g_ptr_array_new_with_free_func((GDestroyNotify) nm_team_link_watcher_unref);

    g_variant_iter_init(&iter, value);
    while (g_variant_iter_next(&iter, "@a{sv}", &watcher_var)) {
        _nm_unused gs_unref_variant GVariant *watcher_var_free = watcher_var;
        NMTeamLinkWatcher                    *watcher;

        watcher = _link_watcher_from_variant(watcher_var, strict_parsing, error);
        if (error && *error)
            return NULL;
        if (watcher)
            g_ptr_array_add(link_watchers, watcher);
    }

    return g_steal_pointer(&link_watchers);
}

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

const char *
nm_team_setting_config_get(const NMTeamSetting *self)
{
    char *js_str;

    nm_assert(self);

    if (G_LIKELY(!self->d._js_str_need_synthetize))
        return self->d._js_str;

    nm_assert(!self->d._js_str);
    nm_assert(self->d.strict_validated);

    if (_team_setting_check_default(self) == 0) {
        /* the default is set. We signal this as a NULL JSON string.
         * Nothing to do. */
        js_str = NULL;
    } else {
        gboolean list_is_empty = TRUE;
        GString *gstr;

        gstr = g_string_new(NULL);

        g_string_append(gstr, "{ ");

        if (self->d.is_port) {
            static const NMTeamAttribute attr_lst_port[] = {
                NM_TEAM_ATTRIBUTE_PORT_QUEUE_ID,
                NM_TEAM_ATTRIBUTE_PORT_PRIO,
                NM_TEAM_ATTRIBUTE_PORT_STICKY,
                NM_TEAM_ATTRIBUTE_PORT_LACP_PRIO,
                NM_TEAM_ATTRIBUTE_PORT_LACP_KEY,
            };

            if (_team_setting_fields_to_json_maybe(self,
                                                   gstr,
                                                   !list_is_empty,
                                                   attr_lst_port,
                                                   G_N_ELEMENTS(attr_lst_port)))
                list_is_empty = FALSE;
        } else {
            static const NMTeamAttribute attr_lst_runner_pt1[] = {
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER,
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_HWADDR_POLICY,
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH,
            };
            static const NMTeamAttribute attr_lst_runner_pt2[] = {
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_BALANCER,
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_BALANCER_INTERVAL,
            };
            static const NMTeamAttribute attr_lst_runner_pt3[] = {
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_ACTIVE,
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_FAST_RATE,
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_SYS_PRIO,
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_MIN_PORTS,
                NM_TEAM_ATTRIBUTE_MASTER_RUNNER_AGG_SELECT_POLICY,
            };
            static const NMTeamAttribute attr_lst_notify_peers[] = {
                NM_TEAM_ATTRIBUTE_MASTER_NOTIFY_PEERS_COUNT,
                NM_TEAM_ATTRIBUTE_MASTER_NOTIFY_PEERS_INTERVAL,
            };
            static const NMTeamAttribute attr_lst_mcast_rejoin[] = {
                NM_TEAM_ATTRIBUTE_MASTER_MCAST_REJOIN_COUNT,
                NM_TEAM_ATTRIBUTE_MASTER_MCAST_REJOIN_INTERVAL,
            };

            if (_team_setting_has_fields_any_v(self,
                                               attr_lst_runner_pt1,
                                               G_N_ELEMENTS(attr_lst_runner_pt1))
                || _team_setting_has_fields_any_v(self,
                                                  attr_lst_runner_pt2,
                                                  G_N_ELEMENTS(attr_lst_runner_pt2))
                || _team_setting_has_fields_any_v(self,
                                                  attr_lst_runner_pt3,
                                                  G_N_ELEMENTS(attr_lst_runner_pt3))) {
                gboolean list_is_empty2 = TRUE;

                nm_assert(list_is_empty);

                nm_json_gstr_append_obj_name(gstr, "runner", '{');

                if (_team_setting_fields_to_json_maybe(self,
                                                       gstr,
                                                       !list_is_empty2,
                                                       attr_lst_runner_pt1,
                                                       G_N_ELEMENTS(attr_lst_runner_pt1)))
                    list_is_empty2 = FALSE;

                if (_team_setting_has_fields_any_v(self,
                                                   attr_lst_runner_pt2,
                                                   G_N_ELEMENTS(attr_lst_runner_pt2))) {
                    if (!list_is_empty2)
                        nm_json_gstr_append_delimiter(gstr);
                    nm_json_gstr_append_obj_name(gstr, "tx_balancer", '{');
                    if (!_team_setting_fields_to_json_maybe(self,
                                                            gstr,
                                                            FALSE,
                                                            attr_lst_runner_pt2,
                                                            G_N_ELEMENTS(attr_lst_runner_pt2)))
                        nm_assert_not_reached();
                    g_string_append(gstr, " }");
                    list_is_empty2 = FALSE;
                }

                if (_team_setting_fields_to_json_maybe(self,
                                                       gstr,
                                                       !list_is_empty2,
                                                       attr_lst_runner_pt3,
                                                       G_N_ELEMENTS(attr_lst_runner_pt3)))
                    list_is_empty2 = FALSE;

                nm_assert(!list_is_empty2);
                g_string_append(gstr, " }");
                list_is_empty = FALSE;
            }

            if (_team_setting_has_fields_any_v(self,
                                               attr_lst_notify_peers,
                                               G_N_ELEMENTS(attr_lst_notify_peers))) {
                if (!list_is_empty)
                    nm_json_gstr_append_delimiter(gstr);
                nm_json_gstr_append_obj_name(gstr, "notify_peers", '{');
                if (!_team_setting_fields_to_json_maybe(self,
                                                        gstr,
                                                        FALSE,
                                                        attr_lst_notify_peers,
                                                        G_N_ELEMENTS(attr_lst_notify_peers)))
                    nm_assert_not_reached();
                g_string_append(gstr, " }");
                list_is_empty = FALSE;
            }

            if (_team_setting_has_fields_any_v(self,
                                               attr_lst_mcast_rejoin,
                                               G_N_ELEMENTS(attr_lst_mcast_rejoin))) {
                if (!list_is_empty)
                    nm_json_gstr_append_delimiter(gstr);
                nm_json_gstr_append_obj_name(gstr, "mcast_rejoin", '{');
                if (!_team_setting_fields_to_json_maybe(self,
                                                        gstr,
                                                        FALSE,
                                                        attr_lst_mcast_rejoin,
                                                        G_N_ELEMENTS(attr_lst_mcast_rejoin)))
                    nm_assert_not_reached();
                g_string_append(gstr, " }");
                list_is_empty = FALSE;
            }
        }

        if (_team_setting_field_to_json(
                self,
                gstr,
                !list_is_empty,
                _team_attr_data_get(self->d.is_port, NM_TEAM_ATTRIBUTE_LINK_WATCHERS)))
            list_is_empty = FALSE;

        if (!list_is_empty)
            g_string_append(gstr, " }");

        js_str = g_string_free(gstr, list_is_empty);
    }

    /* mutate the constant object. In C++ speak, these fields are "mutable".
     * That is because we construct the JSON string lazily/on-demand. */
    *((char **) &self->_data_priv._js_str)                = js_str;
    *((bool *) &self->_data_priv._js_str_need_synthetize) = FALSE;

    return self->d._js_str;
}

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

static gboolean
_attr_data_match_keys(const TeamAttrData *attr_data, const char *const *keys, guint8 n_keys)
{
    guint8 i;

    _team_attr_data_ASSERT(attr_data);
    nm_assert(keys);
    nm_assert(n_keys > 0);
    nm_assert(({
        gboolean all_non_null = TRUE;

        for (i = 0; i < n_keys; i++)
            all_non_null = all_non_null && keys[i] && keys[i][0] != '\0';
        all_non_null;
    }));

    if (attr_data->js_keys_len < n_keys)
        return FALSE;
    for (i = 0; i < n_keys; i++) {
        if (!nm_streq(keys[i], attr_data->js_keys[i]))
            return FALSE;
    }
    return TRUE;
}

static const TeamAttrData *
_attr_data_find_by_json_key(gboolean is_port, const char *const *keys, guint8 n_keys)
{
    const TeamAttrData *attr_data;

    for (attr_data = &team_attr_datas[TEAM_ATTR_IDX_CONFIG + 1];
         attr_data < &team_attr_datas[G_N_ELEMENTS(team_attr_datas)];
         attr_data++) {
        if (_team_attr_data_is_relevant(attr_data, is_port)
            && _attr_data_match_keys(attr_data, keys, n_keys))
            return attr_data;
    }

    return NULL;
}

static void
_js_parse_locate_keys(const NMJsonVt *vt,
                      NMTeamSetting  *self,
                      nm_json_t      *root_js_obj,
                      nm_json_t      *found_keys[static _NM_TEAM_ATTRIBUTE_NUM],
                      gboolean       *out_unrecognized_content)
{
    const char *keys[3];
    const char *cur_key1;
    const char *cur_key2;
    const char *cur_key3;
    nm_json_t  *cur_val1;
    nm_json_t  *cur_val2;
    nm_json_t  *cur_val3;

    nm_assert(vt);

#define _handle(_self, _cur_key, _cur_val, _keys, _level, _found_keys, _out_unrecognized_content)  \
    ({                                                                                             \
        const TeamAttrData *_attr_data;                                                            \
        gboolean            _handled = FALSE;                                                      \
                                                                                                   \
        (_keys)[(_level) -1] = (_cur_key);                                                         \
        _attr_data           = _attr_data_find_by_json_key((_self)->d.is_port, (_keys), (_level)); \
        if (_attr_data && _attr_data->js_keys_len == (_level)) {                                   \
            if ((_found_keys)[_attr_data->team_attr])                                              \
                *(_out_unrecognized_content) = TRUE;                                               \
            (_found_keys)[_attr_data->team_attr] = (_cur_val);                                     \
            _handled                             = TRUE;                                           \
        } else if (!_attr_data || !nm_json_is_object((_cur_val))) {                                \
            *(_out_unrecognized_content) = TRUE;                                                   \
            _handled                     = TRUE;                                                   \
        }                                                                                          \
        _handled;                                                                                  \
    })

    nm_json_object_foreach (vt, root_js_obj, cur_key1, cur_val1) {
        if (!_handle(self, cur_key1, cur_val1, keys, 1, found_keys, out_unrecognized_content)) {
            nm_json_object_foreach (vt, cur_val1, cur_key2, cur_val2) {
                if (!_handle(self,
                             cur_key2,
                             cur_val2,
                             keys,
                             2,
                             found_keys,
                             out_unrecognized_content)) {
                    nm_json_object_foreach (vt, cur_val2, cur_key3, cur_val3) {
                        if (!_handle(self,
                                     cur_key3,
                                     cur_val3,
                                     keys,
                                     3,
                                     found_keys,
                                     out_unrecognized_content))
                            *out_unrecognized_content = TRUE;
                    }
                }
            }
        }
    }

#undef _handle
}

static void
_js_parse_unpack(const NMJsonVt *vt,
                 gboolean        is_port,
                 nm_json_t      *found_keys[static _NM_TEAM_ATTRIBUTE_NUM],
                 bool            out_has_lst[static _NM_TEAM_ATTRIBUTE_NUM],
                 NMValueTypUnion out_val_lst[static _NM_TEAM_ATTRIBUTE_NUM],
                 gboolean       *out_unrecognized_content,
                 GPtrArray     **out_ptr_array_link_watchers_free,
                 GPtrArray     **out_ptr_array_master_runner_tx_hash_free)
{
    const TeamAttrData *attr_data;

    nm_assert(vt);

    for (attr_data = &team_attr_datas[TEAM_ATTR_IDX_CONFIG + 1];
         attr_data < &team_attr_datas[G_N_ELEMENTS(team_attr_datas)];
         attr_data++) {
        NMValueTypUnion *p_out_val;
        gboolean         valid = FALSE;
        nm_json_t       *arg_js_obj;

        if (!_team_attr_data_is_relevant(attr_data, is_port))
            continue;

        nm_assert(!out_has_lst[attr_data->team_attr]);

        arg_js_obj = found_keys[attr_data->team_attr];
        if (!arg_js_obj)
            continue;

        p_out_val = &out_val_lst[attr_data->team_attr];

        if (attr_data->value_type != NM_VALUE_TYPE_UNSPEC)
            valid = nm_value_type_from_json(vt, attr_data->value_type, arg_js_obj, p_out_val);
        else if (attr_data->team_attr == NM_TEAM_ATTRIBUTE_LINK_WATCHERS) {
            GPtrArray         *link_watchers = NULL;
            NMTeamLinkWatcher *link_watcher;

            nm_assert(out_ptr_array_link_watchers_free && !*out_ptr_array_link_watchers_free);
            if (nm_json_is_array(arg_js_obj)) {
                gsize i, len;

                len = vt->nm_json_array_size(arg_js_obj);
                link_watchers =
                    g_ptr_array_new_full(len, (GDestroyNotify) nm_team_link_watcher_unref);
                for (i = 0; i < len; i++) {
                    link_watcher = _link_watcher_from_json(vt,
                                                           vt->nm_json_array_get(arg_js_obj, i),
                                                           out_unrecognized_content);
                    if (link_watcher)
                        g_ptr_array_add(link_watchers, link_watcher);
                }
            } else {
                link_watcher = _link_watcher_from_json(vt, arg_js_obj, out_unrecognized_content);
                if (link_watcher) {
                    link_watchers =
                        g_ptr_array_new_full(1, (GDestroyNotify) nm_team_link_watcher_unref);
                    g_ptr_array_add(link_watchers, link_watcher);
                }
            }
            if (link_watchers) {
                valid                             = TRUE;
                p_out_val->v_ptrarray             = link_watchers;
                *out_ptr_array_link_watchers_free = link_watchers;
            }
        } else if (!is_port && attr_data->team_attr == NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH) {
            GPtrArray *strv = NULL;

            nm_assert(out_ptr_array_master_runner_tx_hash_free
                      && !*out_ptr_array_master_runner_tx_hash_free);
            if (nm_json_is_array(arg_js_obj)) {
                gsize i, len;

                len = vt->nm_json_array_size(arg_js_obj);
                if (len > 0) {
                    strv = g_ptr_array_sized_new(len);
                    for (i = 0; i < len; i++) {
                        const char *v_string;

                        if (nm_jansson_json_as_string(vt,
                                                      vt->nm_json_array_get(arg_js_obj, i),
                                                      &v_string)
                                <= 0
                            || !v_string || v_string[0] == '\0') {
                            /* we remember that there was some invalid content, but parts of the
                             * list could still be parsed. */
                            *out_unrecognized_content = TRUE;
                            continue;
                        }
                        g_ptr_array_add(strv, (char *) v_string);
                    }
                }
                valid                                     = TRUE;
                *out_ptr_array_master_runner_tx_hash_free = strv;
            }
            p_out_val->v_ptrarray = strv;
        } else
            nm_assert_not_reached();

        out_has_lst[attr_data->team_attr] = valid;
        if (!valid)
            *out_unrecognized_content = TRUE;
    }
}

guint32
nm_team_setting_config_set(NMTeamSetting *self, const char *js_str)
{
    const NMJsonVt *vt;
    guint32         changed_flags      = 0;
    gboolean        do_set_default     = TRUE;
    gboolean        new_js_str_invalid = FALSE;

    _team_setting_ASSERT(self);

    if (!js_str || js_str[0] == '\0') {
        changed_flags = _team_setting_set_default(self);
        if (changed_flags != 0 || !nm_streq0(js_str, self->d._js_str))
            changed_flags |= nm_team_attribute_to_flags(NM_TEAM_ATTRIBUTE_CONFIG);
        nm_clear_g_free((char **) &self->_data_priv._js_str);
        self->_data_priv._js_str                 = g_strdup(js_str);
        self->_data_priv._js_str_need_synthetize = FALSE;
        self->_data_priv.strict_validated        = TRUE;
        self->_data_priv.js_str_invalid          = FALSE;
        return changed_flags;
    }

    if (self->d._js_str && nm_streq(js_str, self->d._js_str)) {
        if (!self->d.strict_validated) {
            /* setting the same JSON string twice in a row has no effect. */
            return 0;
        }
    } else
        changed_flags |= nm_team_attribute_to_flags(NM_TEAM_ATTRIBUTE_CONFIG);

    if ((vt = nm_json_vt())) {
        nm_auto_decref_json nm_json_t *root_js_obj = NULL;

        root_js_obj = vt->nm_json_loads(js_str, 0, NULL);
        if (!root_js_obj || !nm_json_is_object(root_js_obj))
            new_js_str_invalid = TRUE;
        else {
            gboolean unrecognized_content            = FALSE;
            bool     has_lst[_NM_TEAM_ATTRIBUTE_NUM] = {
                FALSE,
            };
            NMValueTypUnion val_lst[_NM_TEAM_ATTRIBUTE_NUM];
            nm_json_t      *found_keys[_NM_TEAM_ATTRIBUTE_NUM] = {
                NULL,
            };
            gs_unref_ptrarray GPtrArray *ptr_array_master_runner_tx_hash_free = NULL;
            gs_unref_ptrarray GPtrArray *ptr_array_link_watchers_free         = NULL;

            _js_parse_locate_keys(vt, self, root_js_obj, found_keys, &unrecognized_content);

            _js_parse_unpack(vt,
                             self->d.is_port,
                             found_keys,
                             has_lst,
                             val_lst,
                             &unrecognized_content,
                             &ptr_array_link_watchers_free,
                             &ptr_array_master_runner_tx_hash_free);

            do_set_default = FALSE;

            changed_flags |= _team_setting_set(self, TRUE, has_lst, val_lst);
        }
    }

    if (do_set_default)
        changed_flags |= _team_setting_set_default(self);

    self->_data_priv.strict_validated        = FALSE;
    self->_data_priv._js_str_need_synthetize = FALSE;
    self->_data_priv.js_str_invalid          = new_js_str_invalid;
    g_free((char *) self->_data_priv._js_str);
    self->_data_priv._js_str = g_strdup(js_str);

    return changed_flags;
}

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

static void
_team_setting_prefix_error_plain(gboolean is_port, const char *property_name, GError **error)
{
    g_prefix_error(error,
                   "%s.%s: ",
                   is_port ? NM_SETTING_TEAM_PORT_SETTING_NAME : NM_SETTING_TEAM_SETTING_NAME,
                   property_name);
}

static void
_team_setting_prefix_error(const NMTeamSetting *self,
                           const char          *prop_name_master,
                           const char          *prop_name_port,
                           GError             **error)
{
    _team_setting_ASSERT(self);
    nm_assert(self->d.is_port ? (!!prop_name_port) : (!!prop_name_master));
    _team_setting_prefix_error_plain(self->d.is_port,
                                     self->d.is_port ? prop_name_port : prop_name_master,
                                     error);
}

static gboolean
_team_setting_verify_properties(const NMTeamSetting *self, GError **error)
{
    const TeamAttrData *attr_data;
    guint               i;

    for (attr_data = &team_attr_datas[TEAM_ATTR_IDX_CONFIG + 1];
         attr_data < &team_attr_datas[G_N_ELEMENTS(team_attr_datas)];
         attr_data++) {
        if (!_team_attr_data_is_relevant(attr_data, self->d.is_port))
            continue;
        if (!_team_setting_has_field(self, attr_data))
            continue;

        if (attr_data->has_range) {
            gconstpointer p_field;

            p_field = _team_setting_get_field(self, attr_data);
            if (attr_data->value_type == NM_VALUE_TYPE_INT32) {
                gint32 v = *((const gint32 *) p_field);

                if (v < attr_data->range.r_int32.min || v > attr_data->range.r_int32.max) {
                    g_set_error(error,
                                NM_CONNECTION_ERROR,
                                NM_CONNECTION_ERROR_INVALID_SETTING,
                                _("value out or range"));
                    _team_setting_prefix_error_plain(self->d.is_port,
                                                     attr_data->property_name,
                                                     error);
                    return FALSE;
                }
            } else if (attr_data->value_type == NM_VALUE_TYPE_STRING) {
                const char *v = *((const char *const *) p_field);

                if (!nm_strv_contains(attr_data->range.r_string.valid_names, -1, v)) {
                    g_set_error(error,
                                NM_CONNECTION_ERROR,
                                NM_CONNECTION_ERROR_INVALID_SETTING,
                                _("invalid value"));
                    _team_setting_prefix_error_plain(self->d.is_port,
                                                     attr_data->property_name,
                                                     error);
                    return FALSE;
                }
            } else
                nm_assert_not_reached();
        }

        if (!self->d.is_port && attr_data->team_attr == NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH) {
            if (self->d.master.runner_tx_hash) {
                for (i = 0; i < self->d.master.runner_tx_hash->len; i++) {
                    const char *val = self->d.master.runner_tx_hash->pdata[i];

                    if (!val || !nm_strv_contains(_valid_names_runner_tx_hash, -1, val)) {
                        g_set_error(error,
                                    NM_CONNECTION_ERROR,
                                    NM_CONNECTION_ERROR_INVALID_SETTING,
                                    _("invalid runner-tx-hash"));
                        _team_setting_prefix_error_plain(self->d.is_port,
                                                         NM_SETTING_TEAM_RUNNER_TX_HASH,
                                                         error);
                        return FALSE;
                    }
                }
            }
        }
    }

    if (!self->d.is_port) {
        for (i = 0; i < G_N_ELEMENTS(_runner_compat_lst); i++) {
            const RunnerCompatElem *e = &_runner_compat_lst[i];

            nm_assert(NM_PTRARRAY_LEN(e->valid_runners) > 0);

            attr_data = _team_attr_data_get(FALSE, e->team_attr);

            if (!_team_setting_has_field(self, attr_data))
                continue;
            if (self->d.master.runner
                && nm_strv_contains(e->valid_runners, -1, self->d.master.runner))
                continue;
            if (e->valid_runners[1] == NULL) {
                g_set_error(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_SETTING,
                            _("%s is only allowed for runner %s"),
                            attr_data->property_name,
                            e->valid_runners[0]);
            } else {
                gs_free char *s = NULL;

                s = g_strjoinv(",", (char **) e->valid_runners);
                g_set_error(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_SETTING,
                            _("%s is only allowed for runners %s"),
                            attr_data->property_name,
                            s);
            }
            _team_setting_prefix_error_plain(self->d.is_port, NM_SETTING_TEAM_RUNNER, error);
            return FALSE;
        }
    } else {
        gboolean has_lacp_attrs;
        gboolean has_activebackup_attrs;

        has_lacp_attrs         = _team_setting_has_fields_any(self,
                                                      NM_TEAM_ATTRIBUTE_PORT_LACP_PRIO,
                                                      NM_TEAM_ATTRIBUTE_PORT_LACP_KEY);
        has_activebackup_attrs = _team_setting_has_fields_any(self,
                                                              NM_TEAM_ATTRIBUTE_PORT_PRIO,
                                                              NM_TEAM_ATTRIBUTE_PORT_STICKY);
        if (has_lacp_attrs && has_activebackup_attrs) {
            g_set_error(error,
                        NM_CONNECTION_ERROR,
                        NM_CONNECTION_ERROR_INVALID_SETTING,
                        _("cannot set parameters for lacp and activebackup runners together"));
            _team_setting_prefix_error(self,
                                       NM_SETTING_TEAM_LINK_WATCHERS,
                                       NM_SETTING_TEAM_PORT_LINK_WATCHERS,
                                       error);
            return FALSE;
        }
    }

    for (i = 0; i < self->d.link_watchers->len; i++) {
        if (!self->d.link_watchers->pdata[i]) {
            g_set_error(error,
                        NM_CONNECTION_ERROR,
                        NM_CONNECTION_ERROR_INVALID_SETTING,
                        _("missing link watcher"));
            _team_setting_prefix_error(self,
                                       NM_SETTING_TEAM_LINK_WATCHERS,
                                       NM_SETTING_TEAM_PORT_LINK_WATCHERS,
                                       error);
            return FALSE;
        }
    }

    return TRUE;
}

static gboolean
_team_setting_verify_config(const NMTeamSetting *self, GError **error)
{
    const char *js_str;

    /* we always materialize the JSON string. That is because we want to validate the
     * string length of the resulting JSON. */
    js_str = nm_team_setting_config_get(self);

    if (js_str) {
        if (strlen(js_str) > 1 * 1024 * 1024) {
            g_set_error(error,
                        NM_CONNECTION_ERROR,
                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
                        _("team config exceeds size limit"));
            _team_setting_prefix_error(self,
                                       NM_SETTING_TEAM_CONFIG,
                                       NM_SETTING_TEAM_PORT_CONFIG,
                                       error);
            return FALSE;
        }
        if (!g_utf8_validate(js_str, -1, NULL)) {
            g_set_error(error,
                        NM_CONNECTION_ERROR,
                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
                        _("team config is not valid UTF-8"));
            _team_setting_prefix_error(self,
                                       NM_SETTING_TEAM_CONFIG,
                                       NM_SETTING_TEAM_PORT_CONFIG,
                                       error);
            return FALSE;
        }
        if (self->d.js_str_invalid) {
            g_set_error(error,
                        NM_CONNECTION_ERROR,
                        NM_CONNECTION_ERROR_INVALID_PROPERTY,
                        _("invalid json"));
            _team_setting_prefix_error(self,
                                       NM_SETTING_TEAM_CONFIG,
                                       NM_SETTING_TEAM_PORT_CONFIG,
                                       error);
            return FALSE;
        }
    }

    return TRUE;
}

gboolean
nm_team_setting_verify(const NMTeamSetting *self, GError **error)
{
    if (self->d.strict_validated) {
        if (!_team_setting_verify_properties(self, error))
            return FALSE;
    }
    return _team_setting_verify_config(self, error);
}

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

int
nm_team_setting_cmp(const NMTeamSetting *self_a,
                    const NMTeamSetting *self_b,
                    gboolean             ignore_js_str)
{
    const TeamAttrData *attr_data;

    NM_CMP_SELF(self_a, self_b);

    NM_CMP_FIELD_UNSAFE(self_a, self_b, d.is_port);

    for (attr_data = &team_attr_datas[TEAM_ATTR_IDX_CONFIG + 1];
         attr_data < &team_attr_datas[G_N_ELEMENTS(team_attr_datas)];
         attr_data++) {
        if (!_team_attr_data_is_relevant(attr_data, self_a->d.is_port))
            continue;

        NM_CMP_RETURN(_team_attr_data_cmp(attr_data,
                                          self_a->d.is_port,
                                          _team_setting_get_field(self_a, attr_data),
                                          _team_setting_get_field(self_b, attr_data)));
    }

    if (!ignore_js_str) {
        NM_CMP_DIRECT_STRCMP0(nm_team_setting_config_get(self_a),
                              nm_team_setting_config_get(self_b));
    }

    return 0;
}

guint32
nm_team_setting_reset(NMTeamSetting *self, const NMTeamSetting *src)
{
    const TeamAttrData *attr_data;
    guint32             changed_flags;

    _team_setting_ASSERT(self);
    _team_setting_ASSERT(src);
    nm_assert(self->d.is_port == src->d.is_port);

    if (self == src)
        return 0;

    changed_flags = 0;

    for (attr_data = &team_attr_datas[TEAM_ATTR_IDX_CONFIG + 1];
         attr_data < &team_attr_datas[G_N_ELEMENTS(team_attr_datas)];
         attr_data++) {
        if (!_team_attr_data_is_relevant(attr_data, self->d.is_port))
            continue;
        if (_team_attr_data_equal(attr_data,
                                  self->d.is_port,
                                  _team_setting_get_field(self, attr_data),
                                  _team_setting_get_field(src, attr_data)))
            continue;
        _team_attr_data_copy(attr_data,
                             self->d.is_port,
                             _team_setting_get_field(self, attr_data),
                             _team_setting_get_field(src, attr_data));
        changed_flags |= nm_team_attribute_to_flags(attr_data->team_attr);
    }

    self->_data_priv.has_fields_mask = src->d.has_fields_mask;

    if (!nm_streq0(self->d._js_str, src->d._js_str)) {
        g_free((char *) self->_data_priv._js_str);
        self->_data_priv._js_str = g_strdup(src->d._js_str);
        changed_flags |= nm_team_attribute_to_flags(NM_TEAM_ATTRIBUTE_CONFIG);
    } else if (changed_flags != 0)
        changed_flags |= nm_team_attribute_to_flags(NM_TEAM_ATTRIBUTE_CONFIG);

    self->_data_priv._js_str_need_synthetize = src->d._js_str_need_synthetize;
    self->_data_priv.strict_validated        = src->d.strict_validated;
    self->_data_priv.js_str_invalid          = src->d.js_str_invalid;

    return changed_flags;
}

static void
_variants_list_team_unref_auto(GVariant *(*p_variants)[])
{
    int i;

    for (i = 0; i < _NM_TEAM_ATTRIBUTE_NUM; i++)
        nm_g_variant_unref((*p_variants)[i]);
}

gboolean
nm_team_setting_reset_from_dbus(NMTeamSetting                  *self,
                                GVariant                       *setting_dict,
                                GHashTable                     *keys,
                                guint32                        *out_changed,
                                guint /* NMSettingParseFlags */ parse_flags,
                                GError                        **error)
{
    nm_auto(_variants_list_team_unref_auto) GVariant *variants[_NM_TEAM_ATTRIBUTE_NUM] = {
        NULL,
    };
    gs_unref_ptrarray GPtrArray *v_link_watchers = NULL;
    const TeamAttrData          *attr_data;
    GVariantIter                 iter;
    const char                  *v_key;
    GVariant                    *v_val;
    const NMJsonVt              *vt;

    *out_changed = 0;

    g_variant_iter_init(&iter, setting_dict);
    while (g_variant_iter_next(&iter, "{&sv}", &v_key, &v_val)) {
        _nm_unused gs_unref_variant GVariant *v_val_free   = v_val;
        const GVariantType                   *variant_type = NULL;

        attr_data = _team_attr_data_find_for_property_name(self->d.is_port, v_key);
        if (!attr_data) {
            /* _nm_setting_new_from_dbus() already checks for unknown keys. Don't
             * do that here. */
            continue;
        }

        if (keys)
            g_hash_table_remove(keys, v_key);

        if (attr_data->value_type != NM_VALUE_TYPE_UNSPEC)
            variant_type = nm_value_type_get_variant_type(attr_data->value_type);
        else if (attr_data->team_attr == NM_TEAM_ATTRIBUTE_CONFIG)
            variant_type = G_VARIANT_TYPE_STRING;
        else if (attr_data->team_attr == NM_TEAM_ATTRIBUTE_LINK_WATCHERS)
            variant_type = G_VARIANT_TYPE("aa{sv}");
        else if (!self->d.is_port
                 && attr_data->team_attr == NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH)
            variant_type = G_VARIANT_TYPE_STRING_ARRAY;
        else
            nm_assert_not_reached();

        if (!g_variant_is_of_type(v_val, variant_type)) {
            if (NM_FLAGS_HAS(parse_flags, NM_SETTING_PARSE_FLAGS_STRICT)) {
                g_set_error(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("invalid D-Bus type \"%s\""),
                            g_variant_get_type_string(v_val));
                _team_setting_prefix_error_plain(self->d.is_port, attr_data->property_name, error);
                return FALSE;
            }
            continue;
        }

        /* _nm_setting_new_from_dbus() already checks for duplicate keys. Don't
         * do that here. */
        nm_g_variant_unref(variants[attr_data->team_attr]);
        variants[attr_data->team_attr] = g_steal_pointer(&v_val_free);
    }

    vt = nm_json_vt();

    if (variants[NM_TEAM_ATTRIBUTE_LINK_WATCHERS]) {
        if (variants[NM_TEAM_ATTRIBUTE_CONFIG] && vt
            && !NM_FLAGS_HAS(parse_flags, NM_SETTING_PARSE_FLAGS_STRICT)) {
            /* we don't require the content of the "link-watchers" and we also
             * don't perform strict validation. No need to parse it. */
        } else {
            gs_free_error GError *local = NULL;

            /* We might need the parsed v_link_watchers array below (because there is no JSON
             * "config" present or because we don't have json support).
             *
             * Or we might run with NM_SETTING_PARSE_FLAGS_STRICT. In that mode, we may not necessarily
             * require that the entire setting as a whole validates (if a JSON config is present and
             * we are not "strict_validated") , but we require that we can at least parse the link watchers
             * on their own. */
            v_link_watchers = _nm_utils_team_link_watchers_from_variant(
                variants[NM_TEAM_ATTRIBUTE_LINK_WATCHERS],
                NM_FLAGS_HAS(parse_flags, NM_SETTING_PARSE_FLAGS_STRICT),
                &local);
            if (local && NM_FLAGS_HAS(parse_flags, NM_SETTING_PARSE_FLAGS_STRICT)) {
                g_set_error(error,
                            NM_CONNECTION_ERROR,
                            NM_CONNECTION_ERROR_INVALID_PROPERTY,
                            _("invalid link-watchers: %s"),
                            local->message);
                _team_setting_prefix_error(self,
                                           NM_SETTING_TEAM_LINK_WATCHERS,
                                           NM_SETTING_TEAM_PORT_LINK_WATCHERS,
                                           error);
                return FALSE;
            }
        }
    }

    *out_changed |= nm_team_setting_config_set(
        self,
        variants[NM_TEAM_ATTRIBUTE_CONFIG]
            ? g_variant_get_string(variants[NM_TEAM_ATTRIBUTE_CONFIG], NULL)
            : NULL);

    if (vt && variants[NM_TEAM_ATTRIBUTE_CONFIG]) {
        /* for team settings, the JSON must be able to express all possible options. That means,
         * if the GVariant contains both the JSON "config" and other options, then the other options
         * are silently ignored. */
    } else {
        guint32 extra_changed = 0u;

        for (attr_data = &team_attr_datas[TEAM_ATTR_IDX_CONFIG + 1];
             attr_data < &team_attr_datas[G_N_ELEMENTS(team_attr_datas)];
             attr_data++) {
            NMValueTypUnion val;
            guint32         changed_flags = 0u;

            if (!_team_attr_data_is_relevant(attr_data, self->d.is_port))
                continue;
            if (!variants[attr_data->team_attr])
                continue;

            if (attr_data->value_type != NM_VALUE_TYPE_UNSPEC) {
                nm_value_type_get_from_variant(attr_data->value_type,
                                               &val,
                                               variants[attr_data->team_attr],
                                               FALSE);
                changed_flags = _team_setting_value_set(self,
                                                        attr_data,
                                                        &val,
                                                        SET_FIELD_MODE_SET,
                                                        RESET_JSON_NO);
            } else if (attr_data->team_attr == NM_TEAM_ATTRIBUTE_LINK_WATCHERS) {
                changed_flags = _team_setting_value_link_watchers_set_list(
                    self,
                    v_link_watchers ? (const NMTeamLinkWatcher *const *) v_link_watchers->pdata
                                    : NULL,
                    v_link_watchers ? v_link_watchers->len : 0u,
                    SET_FIELD_MODE_SET,
                    RESET_JSON_NO);
            } else if (!self->d.is_port
                       && attr_data->team_attr == NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH) {
                gs_free const char **strv = NULL;
                gsize                len;

                strv          = g_variant_get_strv(variants[attr_data->team_attr], &len);
                changed_flags = _team_setting_value_master_runner_tx_hash_set_list(
                    self,
                    strv,
                    NM_MIN(len, (gsize) G_MAXUINT),
                    SET_FIELD_MODE_SET,
                    RESET_JSON_NO);
            } else
                nm_assert_not_reached();

            extra_changed |= changed_flags;
        }

        if (!variants[NM_TEAM_ATTRIBUTE_CONFIG]) {
            /* clear the JSON string so it can be regenerated. But only if we didn't set
             * it above. */
            self->_data_priv.strict_validated        = TRUE;
            self->_data_priv._js_str_need_synthetize = TRUE;
        }

        *out_changed |= extra_changed;
    }

    return TRUE;
}

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

gboolean
nm_team_setting_maybe_changed(NMSetting               *source,
                              const GParamSpec *const *obj_properties,
                              guint32                  changed_flags)
{
    NMTeamAttribute team_attr;
    int             count_flags;
    guint32         ch;

    if (changed_flags == 0u)
        return FALSE;

    count_flags = 0;
    for (ch = changed_flags; ch != 0u; ch >>= 1) {
        if (NM_FLAGS_HAS(ch, 0x1u))
            count_flags++;
    }

    if (count_flags > 1)
        g_object_freeze_notify(G_OBJECT(source));

    ch = changed_flags;
    for (team_attr = 0; team_attr < _NM_TEAM_ATTRIBUTE_NUM; team_attr++) {
        if (!NM_FLAGS_ANY(ch, nm_team_attribute_to_flags(team_attr)))
            continue;
        g_object_notify_by_pspec(G_OBJECT(source), (GParamSpec *) obj_properties[team_attr]);
        ch &= ~nm_team_attribute_to_flags(team_attr);
        if (ch == 0)
            break;
    }

    if (count_flags > 1)
        g_object_thaw_notify(G_OBJECT(source));

    return TRUE;
}

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

NMTeamSetting *
_nm_setting_get_team_setting(struct _NMSetting *setting)
{
    if (NM_IS_SETTING_TEAM(setting))
        return _nm_setting_team_get_team_setting(NM_SETTING_TEAM(setting));
    return _nm_setting_team_port_get_team_setting(NM_SETTING_TEAM_PORT(setting));
}

GVariant *
_nm_team_settings_property_to_dbus(_NM_SETT_INFO_PROP_TO_DBUS_FCN_ARGS _nm_nil)
{
    NMTeamSetting      *self = _nm_setting_get_team_setting(setting);
    const TeamAttrData *attr_data =
        _team_attr_data_get(self->d.is_port, property_info->param_spec->param_id);

    if (attr_data->team_attr == NM_TEAM_ATTRIBUTE_CONFIG) {
        const char *config;

        if (self->d.strict_validated && !_nm_utils_is_manager_process) {
            /* if we are in strict validating mode on the client side, the JSON is generated
             * artificially. In this case, don't send the config via D-Bus to the server.
             *
             * This also will cause NetworkManager to strictly validate the settings.
             * If a JSON "config" is present, strict validation won't be performed. */
            return NULL;
        }

        config = nm_team_setting_config_get(self);
        return config ? g_variant_new_string(config) : NULL;
    }

    if (!_team_setting_has_field(self, attr_data))
        return NULL;

    if (attr_data->value_type != NM_VALUE_TYPE_UNSPEC) {
        return nm_value_type_to_variant(attr_data->value_type,
                                        _team_setting_get_field(self, attr_data));
    }
    if (attr_data->team_attr == NM_TEAM_ATTRIBUTE_LINK_WATCHERS)
        return _nm_utils_team_link_watchers_to_variant(self->d.link_watchers);
    if (!self->d.is_port && attr_data->team_attr == NM_TEAM_ATTRIBUTE_MASTER_RUNNER_TX_HASH) {
        return g_variant_new_strv(self->d.master.runner_tx_hash
                                      ? (const char *const *) self->d.master.runner_tx_hash->pdata
                                      : NULL,
                                  self->d.master.runner_tx_hash ? self->d.master.runner_tx_hash->len
                                                                : 0u);
    }

    nm_assert_not_reached();
    return NULL;
}

void
_nm_team_settings_property_from_dbus_link_watchers(
    _NM_SETT_INFO_PROP_FROM_DBUS_GPROP_FCN_ARGS _nm_nil)
{
    g_value_take_boxed(to, _nm_utils_team_link_watchers_from_variant(from, FALSE, NULL));
}

const NMSettInfoPropertType nm_sett_info_propert_type_team_b =
    NM_SETT_INFO_PROPERT_TYPE_DBUS_INIT(G_VARIANT_TYPE_BOOLEAN,
                                        .compare_fcn   = _nm_setting_property_compare_fcn_default,
                                        .to_dbus_fcn   = _nm_team_settings_property_to_dbus,
                                        .from_dbus_fcn = _nm_setting_property_from_dbus_fcn_gprop,
                                        .from_dbus_is_full = TRUE);

const NMSettInfoPropertType nm_sett_info_propert_type_team_i =
    NM_SETT_INFO_PROPERT_TYPE_DBUS_INIT(G_VARIANT_TYPE_INT32,
                                        .compare_fcn   = _nm_setting_property_compare_fcn_default,
                                        .to_dbus_fcn   = _nm_team_settings_property_to_dbus,
                                        .from_dbus_fcn = _nm_setting_property_from_dbus_fcn_gprop,
                                        .from_dbus_is_full = TRUE);

const NMSettInfoPropertType nm_sett_info_propert_type_team_s =
    NM_SETT_INFO_PROPERT_TYPE_DBUS_INIT(G_VARIANT_TYPE_STRING,
                                        .compare_fcn   = _nm_setting_property_compare_fcn_default,
                                        .to_dbus_fcn   = _nm_team_settings_property_to_dbus,
                                        .from_dbus_fcn = _nm_setting_property_from_dbus_fcn_gprop,
                                        .from_dbus_is_full = TRUE);

const NMSettInfoPropertType nm_sett_info_propert_type_team_as =
    NM_SETT_INFO_PROPERT_TYPE_DBUS_INIT(NM_G_VARIANT_TYPE("as"),
                                        .compare_fcn   = _nm_setting_property_compare_fcn_default,
                                        .to_dbus_fcn   = _nm_team_settings_property_to_dbus,
                                        .from_dbus_fcn = _nm_setting_property_from_dbus_fcn_gprop,
                                        .from_dbus_is_full = TRUE);

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

NMTeamSetting *
nm_team_setting_new(gboolean is_port, const char *js_str)
{
    NMTeamSetting *self;
    gsize          l;

    G_STATIC_ASSERT_EXPR(sizeof(*self) == sizeof(self->_data_priv));
    G_STATIC_ASSERT_EXPR(
        sizeof(*self)
        == NM_MAX(nm_offsetofend(NMTeamSetting, d.master), nm_offsetofend(NMTeamSetting, d.port)));

    l = is_port ? nm_offsetofend(NMTeamSetting, d.port) : nm_offsetofend(NMTeamSetting, d.master);

    self = g_malloc0(l);

    self->_data_priv.is_port                 = is_port;
    self->_data_priv.strict_validated        = TRUE;
    self->_data_priv._js_str_need_synthetize = FALSE;
    self->_data_priv.link_watchers =
        g_ptr_array_new_with_free_func((GDestroyNotify) nm_team_link_watcher_unref);

    _team_setting_ASSERT(self);

    nm_team_setting_config_set(self, js_str);

    _team_setting_ASSERT(self);

    return self;
}

void
nm_team_setting_free(NMTeamSetting *self)
{
    if (!self)
        return;

    _team_setting_ASSERT(self);

    if (!self->d.is_port) {
        nm_clear_pointer(((GPtrArray **) &self->_data_priv.master.runner_tx_hash),
                         g_ptr_array_unref);
        g_free((char *) self->_data_priv.master.runner);
        g_free((char *) self->_data_priv.master.runner_hwaddr_policy);
        g_free((char *) self->_data_priv.master.runner_tx_balancer);
        g_free((char *) self->_data_priv.master.runner_agg_select_policy);
    }
    g_ptr_array_unref((GPtrArray *) self->_data_priv.link_watchers);
    g_free((char *) self->_data_priv._js_str);
    g_free(self);
}
