// SPDX-License-Identifier: GPL-2.0-only
/*
 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
 * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
 * Copyright (C) 2018 - 2025 Intel Corporation
 */

/*
 * TODO:
 * - Add TSF sync and fix IBSS beacon transmission by adding
 *   competition for "air time" at TBTT
 * - RX filtering based on filter configuration (data->rx_filter)
 */

#include <linux/list.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <net/dst.h>
#include <net/xfrm.h>
#include <net/mac80211.h>
#include <net/ieee80211_radiotap.h>
#include <linux/if_arp.h>
#include <linux/rtnetlink.h>
#include <linux/etherdevice.h>
#include <linux/platform_device.h>
#include <linux/debugfs.h>
#include <linux/module.h>
#include <linux/ktime.h>
#include <net/genetlink.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
#include <linux/rhashtable.h>
#include <linux/nospec.h>
#include <linux/virtio.h>
#include <linux/virtio_ids.h>
#include <linux/virtio_config.h>
#include "mac80211_hwsim.h"

#define WARN_QUEUE 100
#define MAX_QUEUE 200

MODULE_AUTHOR("Jouni Malinen");
MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
MODULE_LICENSE("GPL");

static int radios = 2;
module_param(radios, int, 0444);
MODULE_PARM_DESC(radios, "Number of simulated radios");

static int channels = 1;
module_param(channels, int, 0444);
MODULE_PARM_DESC(channels, "Number of concurrent channels");

static bool paged_rx = false;
module_param(paged_rx, bool, 0644);
MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");

static bool rctbl = false;
module_param(rctbl, bool, 0444);
MODULE_PARM_DESC(rctbl, "Handle rate control table");

static bool support_p2p_device = true;
module_param(support_p2p_device, bool, 0444);
MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");

static bool mlo;
module_param(mlo, bool, 0444);
MODULE_PARM_DESC(mlo, "Support MLO");

static bool multi_radio;
module_param(multi_radio, bool, 0444);
MODULE_PARM_DESC(multi_radio, "Support Multiple Radios per wiphy");

/**
 * enum hwsim_regtest - the type of regulatory tests we offer
 *
 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
 *      this is the default value.
 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
 *      hint, only one driver regulatory hint will be sent as such the
 *      secondary radios are expected to follow.
 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
 *      request with all radios reporting the same regulatory domain.
 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
 *      different regulatory domains requests. Expected behaviour is for
 *      an intersection to occur but each device will still use their
 *      respective regulatory requested domains. Subsequent radios will
 *      use the resulting intersection.
 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
 *      this by using a custom beacon-capable regulatory domain for the first
 *      radio. All other device world roam.
 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
 *      domain requests. All radios will adhere to this custom world regulatory
 *      domain.
 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
 *      domain requests. The first radio will adhere to the first custom world
 *      regulatory domain, the second one to the second custom world regulatory
 *      domain. All other devices will world roam.
 * @HWSIM_REGTEST_STRICT_FOLLOW: Used for testing strict regulatory domain
 *      settings, only the first radio will send a regulatory domain request
 *      and use strict settings. The rest of the radios are expected to follow.
 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
 *      settings. All radios will adhere to this.
 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
 *      domain settings, combined with secondary driver regulatory domain
 *      settings. The first radio will get a strict regulatory domain setting
 *      using the first driver regulatory request and the second radio will use
 *      non-strict settings using the second driver regulatory request. All
 *      other devices should follow the intersection created between the
 *      first two.
 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
 *      at least 6 radios for a complete test. We will test in this order:
 *      1 - driver custom world regulatory domain
 *      2 - second custom world regulatory domain
 *      3 - first driver regulatory domain request
 *      4 - second driver regulatory domain request
 *      5 - strict regulatory domain settings using the third driver regulatory
 *          domain request
 *      6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
 *                 regulatory requests.
 *
 * These are the different values you can use for the regtest
 * module parameter. This is useful to help test world roaming
 * and the driver regulatory_hint() call and combinations of these.
 * If you want to do specific alpha2 regulatory domain tests simply
 * use the userspace regulatory request as that will be respected as
 * well without the need of this module parameter. This is designed
 * only for testing the driver regulatory request, world roaming
 * and all possible combinations.
 */
enum hwsim_regtest {
        HWSIM_REGTEST_DISABLED = 0,
        HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
        HWSIM_REGTEST_DRIVER_REG_ALL = 2,
        HWSIM_REGTEST_DIFF_COUNTRY = 3,
        HWSIM_REGTEST_WORLD_ROAM = 4,
        HWSIM_REGTEST_CUSTOM_WORLD = 5,
        HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
        HWSIM_REGTEST_STRICT_FOLLOW = 7,
        HWSIM_REGTEST_STRICT_ALL = 8,
        HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
        HWSIM_REGTEST_ALL = 10,
};

/* Set to one of the HWSIM_REGTEST_* values above */
static int regtest = HWSIM_REGTEST_DISABLED;
module_param(regtest, int, 0444);
MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");

static const char *hwsim_alpha2s[] = {
        "FI",
        "AL",
        "US",
        "DE",
        "JP",
        "AL",
};

static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
        .n_reg_rules = 5,
        .alpha2 =  "99",
        .reg_rules = {
                REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
                REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
                REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
                REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
                REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
        }
};

static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
        .n_reg_rules = 3,
        .alpha2 =  "99",
        .reg_rules = {
                REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
                REG_RULE(5725-10, 5850+10, 40, 0, 30,
                         NL80211_RRF_NO_IR),
                REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
        }
};

static const struct ieee80211_regdomain hwsim_world_regdom_custom_03 = {
        .n_reg_rules = 6,
        .alpha2 =  "99",
        .reg_rules = {
                REG_RULE(2412 - 10, 2462 + 10, 40, 0, 20, 0),
                REG_RULE(2484 - 10, 2484 + 10, 40, 0, 20, 0),
                REG_RULE(5150 - 10, 5240 + 10, 40, 0, 30, 0),
                REG_RULE(5745 - 10, 5825 + 10, 40, 0, 30, 0),
                REG_RULE(5855 - 10, 5925 + 10, 40, 0, 33, 0),
                REG_RULE(5955 - 10, 7125 + 10, 320, 0, 33, 0),
        }
};

static const struct ieee80211_regdomain hwsim_world_regdom_custom_04 = {
        .n_reg_rules = 6,
        .alpha2 =  "99",
        .reg_rules = {
                REG_RULE(2412 - 10, 2462 + 10, 40, 0, 20, 0),
                REG_RULE(2484 - 10, 2484 + 10, 40, 0, 20, 0),
                REG_RULE(5150 - 10, 5240 + 10, 80, 0, 30, NL80211_RRF_AUTO_BW),
                REG_RULE(5260 - 10, 5320 + 10, 80, 0, 30,
                         NL80211_RRF_DFS_CONCURRENT | NL80211_RRF_DFS |
                         NL80211_RRF_AUTO_BW),
                REG_RULE(5500 - 10, 5720 + 10, 160, 0, 30,
                         NL80211_RRF_DFS_CONCURRENT | NL80211_RRF_DFS),
                REG_RULE(5745 - 10, 5825 + 10, 80, 0, 30, 0),
                REG_RULE(5855 - 10, 5925 + 10, 80, 0, 33, 0),
        }
};

static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
        &hwsim_world_regdom_custom_01,
        &hwsim_world_regdom_custom_02,
        &hwsim_world_regdom_custom_03,
        &hwsim_world_regdom_custom_04,
};

struct hwsim_vif_priv {
        u32 magic;
        u32 skip_beacons[IEEE80211_MLD_MAX_NUM_LINKS];
        u8 bssid[ETH_ALEN];
        bool assoc;
        bool bcn_en;
        u16 aid;
};

#define HWSIM_VIF_MAGIC 0x69537748

static inline void hwsim_check_magic(struct ieee80211_vif *vif)
{
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
        WARN(vp->magic != HWSIM_VIF_MAGIC,
             "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
             vif, vp->magic, vif->addr, vif->type, vif->p2p);
}

static inline void hwsim_set_magic(struct ieee80211_vif *vif)
{
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
        vp->magic = HWSIM_VIF_MAGIC;
}

static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
{
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
        vp->magic = 0;
}

struct hwsim_sta_priv {
        u32 magic;
        unsigned int last_link;
        u16 active_links_rx;
};

#define HWSIM_STA_MAGIC 0x6d537749

static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
{
        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
        WARN_ON(sp->magic != HWSIM_STA_MAGIC);
}

static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
{
        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
        sp->magic = HWSIM_STA_MAGIC;
}

static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
{
        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
        sp->magic = 0;
}

struct hwsim_chanctx_priv {
        u32 magic;
};

#define HWSIM_CHANCTX_MAGIC 0x6d53774a

static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
{
        struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
        WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
}

static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
{
        struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
        cp->magic = HWSIM_CHANCTX_MAGIC;
}

static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
{
        struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
        cp->magic = 0;
}

static unsigned int hwsim_net_id;

static DEFINE_IDA(hwsim_netgroup_ida);

struct hwsim_net {
        int netgroup;
        u32 wmediumd;
};

static inline int hwsim_net_get_netgroup(struct net *net)
{
        struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);

        return hwsim_net->netgroup;
}

static inline int hwsim_net_set_netgroup(struct net *net)
{
        struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);

        hwsim_net->netgroup = ida_alloc(&hwsim_netgroup_ida, GFP_KERNEL);
        return hwsim_net->netgroup >= 0 ? 0 : -ENOMEM;
}

static inline u32 hwsim_net_get_wmediumd(struct net *net)
{
        struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);

        return hwsim_net->wmediumd;
}

static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
{
        struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);

        hwsim_net->wmediumd = portid;
}

static struct class *hwsim_class;

static struct net_device *hwsim_mon; /* global monitor netdev */

#define CHAN2G(_freq)  { \
        .band = NL80211_BAND_2GHZ, \
        .center_freq = (_freq), \
        .hw_value = (_freq), \
}

#define CHAN5G(_freq) { \
        .band = NL80211_BAND_5GHZ, \
        .center_freq = (_freq), \
        .hw_value = (_freq), \
}

#define CHAN6G(_freq) { \
        .band = NL80211_BAND_6GHZ, \
        .center_freq = (_freq), \
        .hw_value = (_freq), \
}

static const struct ieee80211_channel hwsim_channels_2ghz[] = {
        CHAN2G(2412), /* Channel 1 */
        CHAN2G(2417), /* Channel 2 */
        CHAN2G(2422), /* Channel 3 */
        CHAN2G(2427), /* Channel 4 */
        CHAN2G(2432), /* Channel 5 */
        CHAN2G(2437), /* Channel 6 */
        CHAN2G(2442), /* Channel 7 */
        CHAN2G(2447), /* Channel 8 */
        CHAN2G(2452), /* Channel 9 */
        CHAN2G(2457), /* Channel 10 */
        CHAN2G(2462), /* Channel 11 */
        CHAN2G(2467), /* Channel 12 */
        CHAN2G(2472), /* Channel 13 */
        CHAN2G(2484), /* Channel 14 */
};

static const struct ieee80211_channel hwsim_channels_5ghz[] = {
        CHAN5G(5180), /* Channel 36 */
        CHAN5G(5200), /* Channel 40 */
        CHAN5G(5220), /* Channel 44 */
        CHAN5G(5240), /* Channel 48 */

        CHAN5G(5260), /* Channel 52 */
        CHAN5G(5280), /* Channel 56 */
        CHAN5G(5300), /* Channel 60 */
        CHAN5G(5320), /* Channel 64 */

        CHAN5G(5500), /* Channel 100 */
        CHAN5G(5520), /* Channel 104 */
        CHAN5G(5540), /* Channel 108 */
        CHAN5G(5560), /* Channel 112 */
        CHAN5G(5580), /* Channel 116 */
        CHAN5G(5600), /* Channel 120 */
        CHAN5G(5620), /* Channel 124 */
        CHAN5G(5640), /* Channel 128 */
        CHAN5G(5660), /* Channel 132 */
        CHAN5G(5680), /* Channel 136 */
        CHAN5G(5700), /* Channel 140 */

        CHAN5G(5745), /* Channel 149 */
        CHAN5G(5765), /* Channel 153 */
        CHAN5G(5785), /* Channel 157 */
        CHAN5G(5805), /* Channel 161 */
        CHAN5G(5825), /* Channel 165 */
        CHAN5G(5845), /* Channel 169 */

        CHAN5G(5855), /* Channel 171 */
        CHAN5G(5860), /* Channel 172 */
        CHAN5G(5865), /* Channel 173 */
        CHAN5G(5870), /* Channel 174 */

        CHAN5G(5875), /* Channel 175 */
        CHAN5G(5880), /* Channel 176 */
        CHAN5G(5885), /* Channel 177 */
        CHAN5G(5890), /* Channel 178 */
        CHAN5G(5895), /* Channel 179 */
        CHAN5G(5900), /* Channel 180 */
        CHAN5G(5905), /* Channel 181 */

        CHAN5G(5910), /* Channel 182 */
        CHAN5G(5915), /* Channel 183 */
        CHAN5G(5920), /* Channel 184 */
        CHAN5G(5925), /* Channel 185 */
};

static const struct ieee80211_channel hwsim_channels_6ghz[] = {
        CHAN6G(5955), /* Channel 1 */
        CHAN6G(5975), /* Channel 5 */
        CHAN6G(5995), /* Channel 9 */
        CHAN6G(6015), /* Channel 13 */
        CHAN6G(6035), /* Channel 17 */
        CHAN6G(6055), /* Channel 21 */
        CHAN6G(6075), /* Channel 25 */
        CHAN6G(6095), /* Channel 29 */
        CHAN6G(6115), /* Channel 33 */
        CHAN6G(6135), /* Channel 37 */
        CHAN6G(6155), /* Channel 41 */
        CHAN6G(6175), /* Channel 45 */
        CHAN6G(6195), /* Channel 49 */
        CHAN6G(6215), /* Channel 53 */
        CHAN6G(6235), /* Channel 57 */
        CHAN6G(6255), /* Channel 61 */
        CHAN6G(6275), /* Channel 65 */
        CHAN6G(6295), /* Channel 69 */
        CHAN6G(6315), /* Channel 73 */
        CHAN6G(6335), /* Channel 77 */
        CHAN6G(6355), /* Channel 81 */
        CHAN6G(6375), /* Channel 85 */
        CHAN6G(6395), /* Channel 89 */
        CHAN6G(6415), /* Channel 93 */
        CHAN6G(6435), /* Channel 97 */
        CHAN6G(6455), /* Channel 181 */
        CHAN6G(6475), /* Channel 105 */
        CHAN6G(6495), /* Channel 109 */
        CHAN6G(6515), /* Channel 113 */
        CHAN6G(6535), /* Channel 117 */
        CHAN6G(6555), /* Channel 121 */
        CHAN6G(6575), /* Channel 125 */
        CHAN6G(6595), /* Channel 129 */
        CHAN6G(6615), /* Channel 133 */
        CHAN6G(6635), /* Channel 137 */
        CHAN6G(6655), /* Channel 141 */
        CHAN6G(6675), /* Channel 145 */
        CHAN6G(6695), /* Channel 149 */
        CHAN6G(6715), /* Channel 153 */
        CHAN6G(6735), /* Channel 157 */
        CHAN6G(6755), /* Channel 161 */
        CHAN6G(6775), /* Channel 165 */
        CHAN6G(6795), /* Channel 169 */
        CHAN6G(6815), /* Channel 173 */
        CHAN6G(6835), /* Channel 177 */
        CHAN6G(6855), /* Channel 181 */
        CHAN6G(6875), /* Channel 185 */
        CHAN6G(6895), /* Channel 189 */
        CHAN6G(6915), /* Channel 193 */
        CHAN6G(6935), /* Channel 197 */
        CHAN6G(6955), /* Channel 201 */
        CHAN6G(6975), /* Channel 205 */
        CHAN6G(6995), /* Channel 209 */
        CHAN6G(7015), /* Channel 213 */
        CHAN6G(7035), /* Channel 217 */
        CHAN6G(7055), /* Channel 221 */
        CHAN6G(7075), /* Channel 225 */
        CHAN6G(7095), /* Channel 229 */
        CHAN6G(7115), /* Channel 233 */
};

#define NUM_S1G_CHANS_US 51
static struct ieee80211_channel hwsim_channels_s1g[NUM_S1G_CHANS_US];

static const struct ieee80211_sta_s1g_cap hwsim_s1g_cap = {
        .s1g = true,
        .cap = { S1G_CAP0_SGI_1MHZ | S1G_CAP0_SGI_2MHZ,
                 0,
                 0,
                 S1G_CAP3_MAX_MPDU_LEN,
                 0,
                 S1G_CAP5_AMPDU,
                 0,
                 S1G_CAP7_DUP_1MHZ,
                 S1G_CAP8_TWT_RESPOND | S1G_CAP8_TWT_REQUEST,
                 0},
        .nss_mcs = { 0xfc | 1, /* MCS 7 for 1 SS */
        /* RX Highest Supported Long GI Data Rate 0:7 */
                     0,
        /* RX Highest Supported Long GI Data Rate 0:7 */
        /* TX S1G MCS Map 0:6 */
                     0xfa,
        /* TX S1G MCS Map :7 */
        /* TX Highest Supported Long GI Data Rate 0:6 */
                     0x80,
        /* TX Highest Supported Long GI Data Rate 7:8 */
        /* Rx Single spatial stream and S1G-MCS Map for 1MHz */
        /* Tx Single spatial stream and S1G-MCS Map for 1MHz */
                     0 },
};

static void hwsim_init_s1g_channels(struct ieee80211_channel *chans)
{
        int ch, freq;

        for (ch = 0; ch < NUM_S1G_CHANS_US; ch++) {
                freq = 902000 + (ch + 1) * 500;
                chans[ch].band = NL80211_BAND_S1GHZ;
                chans[ch].center_freq = KHZ_TO_MHZ(freq);
                chans[ch].freq_offset = freq % 1000;
                chans[ch].hw_value = ch + 1;
        }
}

static const struct ieee80211_rate hwsim_rates[] = {
        { .bitrate = 10 },
        { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
        { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
        { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
        { .bitrate = 60 },
        { .bitrate = 90 },
        { .bitrate = 120 },
        { .bitrate = 180 },
        { .bitrate = 240 },
        { .bitrate = 360 },
        { .bitrate = 480 },
        { .bitrate = 540 }
};

#define DEFAULT_RX_RSSI -50

static const u32 hwsim_ciphers[] = {
        WLAN_CIPHER_SUITE_WEP40,
        WLAN_CIPHER_SUITE_WEP104,
        WLAN_CIPHER_SUITE_TKIP,
        WLAN_CIPHER_SUITE_CCMP,
        WLAN_CIPHER_SUITE_CCMP_256,
        WLAN_CIPHER_SUITE_GCMP,
        WLAN_CIPHER_SUITE_GCMP_256,
        WLAN_CIPHER_SUITE_AES_CMAC,
        WLAN_CIPHER_SUITE_BIP_CMAC_256,
        WLAN_CIPHER_SUITE_BIP_GMAC_128,
        WLAN_CIPHER_SUITE_BIP_GMAC_256,
};

#define OUI_QCA 0x001374
#define QCA_NL80211_SUBCMD_TEST 1
enum qca_nl80211_vendor_subcmds {
        QCA_WLAN_VENDOR_ATTR_TEST = 8,
        QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
};

static const struct nla_policy
hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
        [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
};

static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
                                          struct wireless_dev *wdev,
                                          const void *data, int data_len)
{
        struct sk_buff *skb;
        struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
        int err;
        u32 val;

        err = nla_parse_deprecated(tb, QCA_WLAN_VENDOR_ATTR_MAX, data,
                                   data_len, hwsim_vendor_test_policy, NULL);
        if (err)
                return err;
        if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
                return -EINVAL;
        val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
        wiphy_dbg(wiphy, "%s: test=%u\n", __func__, val);

        /* Send a vendor event as a test. Note that this would not normally be
         * done within a command handler, but rather, based on some other
         * trigger. For simplicity, this command is used to trigger the event
         * here.
         *
         * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
         */
        skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
        if (skb) {
                /* skb_put() or nla_put() will fill up data within
                 * NL80211_ATTR_VENDOR_DATA.
                 */

                /* Add vendor data */
                nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);

                /* Send the event - this will call nla_nest_end() */
                cfg80211_vendor_event(skb, GFP_KERNEL);
        }

        /* Send a response to the command */
        skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
        if (!skb)
                return -ENOMEM;

        /* skb_put() or nla_put() will fill up data within
         * NL80211_ATTR_VENDOR_DATA
         */
        nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);

        return cfg80211_vendor_cmd_reply(skb);
}

static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
        {
                .info = { .vendor_id = OUI_QCA,
                          .subcmd = QCA_NL80211_SUBCMD_TEST },
                .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
                .doit = mac80211_hwsim_vendor_cmd_test,
                .policy = hwsim_vendor_test_policy,
                .maxattr = QCA_WLAN_VENDOR_ATTR_MAX,
        }
};

/* Advertise support vendor specific events */
static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
        { .vendor_id = OUI_QCA, .subcmd = 1 },
};

static DEFINE_SPINLOCK(hwsim_radio_lock);
static LIST_HEAD(hwsim_radios);
static struct rhashtable hwsim_radios_rht;
static int hwsim_radio_idx;
static int hwsim_radios_generation = 1;
static u8 hwsim_nan_cluster_id[ETH_ALEN];

static struct platform_driver mac80211_hwsim_driver = {
        .driver = {
                .name = "mac80211_hwsim",
        },
};

struct mac80211_hwsim_link_data {
        u32 link_id;
        u64 beacon_int  /* beacon interval in us */;
        struct hrtimer beacon_timer;
};

struct mac80211_hwsim_data {
        struct list_head list;
        struct rhash_head rht;
        struct ieee80211_hw *hw;
        struct device *dev;
        struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
        struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
        struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
        struct ieee80211_channel channels_6ghz[ARRAY_SIZE(hwsim_channels_6ghz)];
        struct ieee80211_channel channels_s1g[ARRAY_SIZE(hwsim_channels_s1g)];
        struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
        struct ieee80211_iface_combination if_combination;
        struct ieee80211_iface_limit if_limits[4];
        int n_if_limits;

        struct ieee80211_iface_combination if_combination_radio;
        struct wiphy_radio_freq_range radio_range[NUM_NL80211_BANDS];
        struct wiphy_radio radio[NUM_NL80211_BANDS];

        u32 ciphers[ARRAY_SIZE(hwsim_ciphers)];

        struct mac_address addresses[3];
        int channels, idx;
        bool use_chanctx;
        bool destroy_on_close;
        u32 portid;
        char alpha2[2];
        const struct ieee80211_regdomain *regd;

        struct ieee80211_channel *tmp_chan;
        struct ieee80211_channel *roc_chan;
        u32 roc_duration;
        struct delayed_work roc_start;
        struct delayed_work roc_done;
        struct delayed_work hw_scan;
        struct cfg80211_scan_request *hw_scan_request;
        struct ieee80211_vif *hw_scan_vif;
        int scan_chan_idx;
        u8 scan_addr[ETH_ALEN];
        struct {
                struct ieee80211_channel *channel;
                unsigned long next_start, start, end;
        } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
                      ARRAY_SIZE(hwsim_channels_5ghz) +
                      ARRAY_SIZE(hwsim_channels_6ghz)];

        struct ieee80211_channel *channel;
        enum nl80211_chan_width bw;
        unsigned int rx_filter;
        bool started, idle, scanning;
        struct mutex mutex;
        enum ps_mode {
                PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
        } ps;
        bool ps_poll_pending;
        struct dentry *debugfs;

        atomic_t pending_cookie;
        struct sk_buff_head pending;    /* packets pending */
        /*
         * Only radios in the same group can communicate together (the
         * channel has to match too). Each bit represents a group. A
         * radio can be in more than one group.
         */
        u64 group;

        /* group shared by radios created in the same netns */
        int netgroup;
        /* wmediumd portid responsible for netgroup of this radio */
        u32 wmediumd;

        /* difference between this hw's clock and the real clock, in usecs */
        s64 tsf_offset;
        s64 bcn_delta;
        /* absolute beacon transmission time. Used to cover up "tx" delay. */
        u64 abs_bcn_ts;

        /* Stats */
        u64 tx_pkts;
        u64 rx_pkts;
        u64 tx_bytes;
        u64 rx_bytes;
        u64 tx_dropped;
        u64 tx_failed;

        /* RSSI in rx status of the receiver */
        int rx_rssi;

        /* only used when pmsr capability is supplied */
        struct cfg80211_pmsr_capabilities pmsr_capa;
        struct cfg80211_pmsr_request *pmsr_request;
        struct wireless_dev *pmsr_request_wdev;

        struct mac80211_hwsim_link_data link_data[IEEE80211_MLD_MAX_NUM_LINKS];

        struct ieee80211_vif *nan_device_vif;
        u8 nan_bands;

        enum nl80211_band nan_curr_dw_band;
        struct hrtimer nan_timer;
        bool notify_dw;
        struct ieee80211_vif *nan_vif;
};

static const struct rhashtable_params hwsim_rht_params = {
        .nelem_hint = 2,
        .automatic_shrinking = true,
        .key_len = ETH_ALEN,
        .key_offset = offsetof(struct mac80211_hwsim_data, addresses[1]),
        .head_offset = offsetof(struct mac80211_hwsim_data, rht),
};

struct hwsim_radiotap_hdr {
        struct ieee80211_radiotap_header_fixed hdr;
        __le64 rt_tsft;
        u8 rt_flags;
        u8 rt_rate;
        __le16 rt_channel;
        __le16 rt_chbitmask;
} __packed;

struct hwsim_radiotap_ack_hdr {
        struct ieee80211_radiotap_header_fixed hdr;
        u8 rt_flags;
        u8 pad;
        __le16 rt_channel;
        __le16 rt_chbitmask;
} __packed;

static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
{
        return rhashtable_lookup_fast(&hwsim_radios_rht, addr, hwsim_rht_params);
}

/* MAC80211_HWSIM netlink family */
static struct genl_family hwsim_genl_family;

enum hwsim_multicast_groups {
        HWSIM_MCGRP_CONFIG,
};

static const struct genl_multicast_group hwsim_mcgrps[] = {
        [HWSIM_MCGRP_CONFIG] = { .name = "config", },
};

/* MAC80211_HWSIM netlink policy */

static const struct nla_policy
hwsim_rate_info_policy[HWSIM_RATE_INFO_ATTR_MAX + 1] = {
        [HWSIM_RATE_INFO_ATTR_FLAGS] = { .type = NLA_U8 },
        [HWSIM_RATE_INFO_ATTR_MCS] = { .type = NLA_U8 },
        [HWSIM_RATE_INFO_ATTR_LEGACY] = { .type = NLA_U16 },
        [HWSIM_RATE_INFO_ATTR_NSS] = { .type = NLA_U8 },
        [HWSIM_RATE_INFO_ATTR_BW] = { .type = NLA_U8 },
        [HWSIM_RATE_INFO_ATTR_HE_GI] = { .type = NLA_U8 },
        [HWSIM_RATE_INFO_ATTR_HE_DCM] = { .type = NLA_U8 },
        [HWSIM_RATE_INFO_ATTR_HE_RU_ALLOC] = { .type = NLA_U8 },
        [HWSIM_RATE_INFO_ATTR_N_BOUNDED_CH] = { .type = NLA_U8 },
        [HWSIM_RATE_INFO_ATTR_EHT_GI] = { .type = NLA_U8 },
        [HWSIM_RATE_INFO_ATTR_EHT_RU_ALLOC] = { .type = NLA_U8 },
};

static const struct nla_policy
hwsim_ftm_result_policy[NL80211_PMSR_FTM_RESP_ATTR_MAX + 1] = {
        [NL80211_PMSR_FTM_RESP_ATTR_FAIL_REASON] = { .type = NLA_U32 },
        [NL80211_PMSR_FTM_RESP_ATTR_BURST_INDEX] = { .type = NLA_U16 },
        [NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_ATTEMPTS] = { .type = NLA_U32 },
        [NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_SUCCESSES] = { .type = NLA_U32 },
        [NL80211_PMSR_FTM_RESP_ATTR_BUSY_RETRY_TIME] = { .type = NLA_U8 },
        [NL80211_PMSR_FTM_RESP_ATTR_NUM_BURSTS_EXP] = { .type = NLA_U8 },
        [NL80211_PMSR_FTM_RESP_ATTR_BURST_DURATION] = { .type = NLA_U8 },
        [NL80211_PMSR_FTM_RESP_ATTR_FTMS_PER_BURST] = { .type = NLA_U8 },
        [NL80211_PMSR_FTM_RESP_ATTR_RSSI_AVG] = { .type = NLA_U32 },
        [NL80211_PMSR_FTM_RESP_ATTR_RSSI_SPREAD] = { .type = NLA_U32 },
        [NL80211_PMSR_FTM_RESP_ATTR_TX_RATE] = NLA_POLICY_NESTED(hwsim_rate_info_policy),
        [NL80211_PMSR_FTM_RESP_ATTR_RX_RATE] = NLA_POLICY_NESTED(hwsim_rate_info_policy),
        [NL80211_PMSR_FTM_RESP_ATTR_RTT_AVG] = { .type = NLA_U64 },
        [NL80211_PMSR_FTM_RESP_ATTR_RTT_VARIANCE] = { .type = NLA_U64 },
        [NL80211_PMSR_FTM_RESP_ATTR_RTT_SPREAD] = { .type = NLA_U64 },
        [NL80211_PMSR_FTM_RESP_ATTR_DIST_AVG] = { .type = NLA_U64 },
        [NL80211_PMSR_FTM_RESP_ATTR_DIST_VARIANCE] = { .type = NLA_U64 },
        [NL80211_PMSR_FTM_RESP_ATTR_DIST_SPREAD] = { .type = NLA_U64 },
        [NL80211_PMSR_FTM_RESP_ATTR_LCI] = { .type = NLA_STRING },
        [NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC] = { .type = NLA_STRING },
};

static const struct nla_policy
hwsim_pmsr_resp_type_policy[NL80211_PMSR_TYPE_MAX + 1] = {
        [NL80211_PMSR_TYPE_FTM] = NLA_POLICY_NESTED(hwsim_ftm_result_policy),
};

static const struct nla_policy
hwsim_pmsr_resp_policy[NL80211_PMSR_RESP_ATTR_MAX + 1] = {
        [NL80211_PMSR_RESP_ATTR_STATUS] = { .type = NLA_U32 },
        [NL80211_PMSR_RESP_ATTR_HOST_TIME] = { .type = NLA_U64 },
        [NL80211_PMSR_RESP_ATTR_AP_TSF] = { .type = NLA_U64 },
        [NL80211_PMSR_RESP_ATTR_FINAL] = { .type = NLA_FLAG },
        [NL80211_PMSR_RESP_ATTR_DATA] = NLA_POLICY_NESTED(hwsim_pmsr_resp_type_policy),
};

static const struct nla_policy
hwsim_pmsr_peer_result_policy[NL80211_PMSR_PEER_ATTR_MAX + 1] = {
        [NL80211_PMSR_PEER_ATTR_ADDR] = NLA_POLICY_ETH_ADDR_COMPAT,
        [NL80211_PMSR_PEER_ATTR_CHAN] = { .type = NLA_REJECT },
        [NL80211_PMSR_PEER_ATTR_REQ] = { .type = NLA_REJECT },
        [NL80211_PMSR_PEER_ATTR_RESP] = NLA_POLICY_NESTED(hwsim_pmsr_resp_policy),
};

static const struct nla_policy
hwsim_pmsr_peers_result_policy[NL80211_PMSR_ATTR_MAX + 1] = {
        [NL80211_PMSR_ATTR_MAX_PEERS] = { .type = NLA_REJECT },
        [NL80211_PMSR_ATTR_REPORT_AP_TSF] = { .type = NLA_REJECT },
        [NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR] = { .type = NLA_REJECT },
        [NL80211_PMSR_ATTR_TYPE_CAPA] = { .type = NLA_REJECT },
        [NL80211_PMSR_ATTR_PEERS] = NLA_POLICY_NESTED_ARRAY(hwsim_pmsr_peer_result_policy),
};

static const struct nla_policy
hwsim_ftm_capa_policy[NL80211_PMSR_FTM_CAPA_ATTR_MAX + 1] = {
        [NL80211_PMSR_FTM_CAPA_ATTR_ASAP] = { .type = NLA_FLAG },
        [NL80211_PMSR_FTM_CAPA_ATTR_NON_ASAP] = { .type = NLA_FLAG },
        [NL80211_PMSR_FTM_CAPA_ATTR_REQ_LCI] = { .type = NLA_FLAG },
        [NL80211_PMSR_FTM_CAPA_ATTR_REQ_CIVICLOC] = { .type = NLA_FLAG },
        [NL80211_PMSR_FTM_CAPA_ATTR_PREAMBLES] = { .type = NLA_U32 },
        [NL80211_PMSR_FTM_CAPA_ATTR_BANDWIDTHS] = { .type = NLA_U32 },
        [NL80211_PMSR_FTM_CAPA_ATTR_MAX_BURSTS_EXPONENT] = NLA_POLICY_MAX(NLA_U8, 15),
        [NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST] = NLA_POLICY_MAX(NLA_U8, 31),
        [NL80211_PMSR_FTM_CAPA_ATTR_TRIGGER_BASED] = { .type = NLA_FLAG },
        [NL80211_PMSR_FTM_CAPA_ATTR_NON_TRIGGER_BASED] = { .type = NLA_FLAG },
};

static const struct nla_policy
hwsim_pmsr_capa_type_policy[NL80211_PMSR_TYPE_MAX + 1] = {
        [NL80211_PMSR_TYPE_FTM] = NLA_POLICY_NESTED(hwsim_ftm_capa_policy),
};

static const struct nla_policy
hwsim_pmsr_capa_policy[NL80211_PMSR_ATTR_MAX + 1] = {
        [NL80211_PMSR_ATTR_MAX_PEERS] = { .type = NLA_U32 },
        [NL80211_PMSR_ATTR_REPORT_AP_TSF] = { .type = NLA_FLAG },
        [NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR] = { .type = NLA_FLAG },
        [NL80211_PMSR_ATTR_TYPE_CAPA] = NLA_POLICY_NESTED(hwsim_pmsr_capa_type_policy),
        [NL80211_PMSR_ATTR_PEERS] = { .type = NLA_REJECT }, // only for request.
};

static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
        [HWSIM_ATTR_ADDR_RECEIVER] = NLA_POLICY_ETH_ADDR_COMPAT,
        [HWSIM_ATTR_ADDR_TRANSMITTER] = NLA_POLICY_ETH_ADDR_COMPAT,
        [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
                               .len = IEEE80211_MAX_DATA_LEN },
        [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
        [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
        [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
        [HWSIM_ATTR_TX_INFO] = { .type = NLA_BINARY,
                                 .len = IEEE80211_TX_MAX_RATES *
                                        sizeof(struct hwsim_tx_rate)},
        [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
        [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
        [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
        [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
        [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
        [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
        [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
        [HWSIM_ATTR_USE_CHANCTX] = { .type = NLA_FLAG },
        [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
        [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
        [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
        [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
        [HWSIM_ATTR_TX_INFO_FLAGS] = { .type = NLA_BINARY },
        [HWSIM_ATTR_PERM_ADDR] = NLA_POLICY_ETH_ADDR_COMPAT,
        [HWSIM_ATTR_IFTYPE_SUPPORT] = { .type = NLA_U32 },
        [HWSIM_ATTR_CIPHER_SUPPORT] = { .type = NLA_BINARY },
        [HWSIM_ATTR_MLO_SUPPORT] = { .type = NLA_FLAG },
        [HWSIM_ATTR_PMSR_SUPPORT] = NLA_POLICY_NESTED(hwsim_pmsr_capa_policy),
        [HWSIM_ATTR_PMSR_RESULT] = NLA_POLICY_NESTED(hwsim_pmsr_peers_result_policy),
        [HWSIM_ATTR_MULTI_RADIO] = { .type = NLA_FLAG },
        [HWSIM_ATTR_SUPPORT_NAN_DEVICE] = { .type = NLA_FLAG },
};

#if IS_REACHABLE(CONFIG_VIRTIO)

/* MAC80211_HWSIM virtio queues */
static struct virtqueue *hwsim_vqs[HWSIM_NUM_VQS];
static bool hwsim_virtio_enabled;
static DEFINE_SPINLOCK(hwsim_virtio_lock);

static void hwsim_virtio_rx_work(struct work_struct *work);
static DECLARE_WORK(hwsim_virtio_rx, hwsim_virtio_rx_work);

static int hwsim_tx_virtio(struct mac80211_hwsim_data *data,
                           struct sk_buff *skb)
{
        struct scatterlist sg[1];
        unsigned long flags;
        int err;

        spin_lock_irqsave(&hwsim_virtio_lock, flags);
        if (!hwsim_virtio_enabled) {
                err = -ENODEV;
                goto out_free;
        }

        sg_init_one(sg, skb->head, skb_end_offset(skb));
        err = virtqueue_add_outbuf(hwsim_vqs[HWSIM_VQ_TX], sg, 1, skb,
                                   GFP_ATOMIC);
        if (err)
                goto out_free;
        virtqueue_kick(hwsim_vqs[HWSIM_VQ_TX]);
        spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
        return 0;

out_free:
        spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
        nlmsg_free(skb);
        return err;
}
#else
/* cause a linker error if this ends up being needed */
extern int hwsim_tx_virtio(struct mac80211_hwsim_data *data,
                           struct sk_buff *skb);
#define hwsim_virtio_enabled false
#endif

static int hwsim_get_chanwidth(enum nl80211_chan_width bw)
{
        switch (bw) {
        case NL80211_CHAN_WIDTH_20_NOHT:
        case NL80211_CHAN_WIDTH_20:
                return 20;
        case NL80211_CHAN_WIDTH_40:
                return 40;
        case NL80211_CHAN_WIDTH_80:
                return 80;
        case NL80211_CHAN_WIDTH_80P80:
        case NL80211_CHAN_WIDTH_160:
                return 160;
        case NL80211_CHAN_WIDTH_320:
                return 320;
        case NL80211_CHAN_WIDTH_5:
                return 5;
        case NL80211_CHAN_WIDTH_10:
                return 10;
        case NL80211_CHAN_WIDTH_1:
                return 1;
        case NL80211_CHAN_WIDTH_2:
                return 2;
        case NL80211_CHAN_WIDTH_4:
                return 4;
        case NL80211_CHAN_WIDTH_8:
                return 8;
        case NL80211_CHAN_WIDTH_16:
                return 16;
        }

        return INT_MAX;
}

static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
                                    struct sk_buff *skb,
                                    struct ieee80211_channel *chan);

/* sysfs attributes */
static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
{
        struct mac80211_hwsim_data *data = dat;
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
        struct sk_buff *skb;
        struct ieee80211_pspoll *pspoll;

        if (!vp->assoc)
                return;

        wiphy_dbg(data->hw->wiphy,
                  "%s: send PS-Poll to %pM for aid %d\n",
                  __func__, vp->bssid, vp->aid);

        skb = dev_alloc_skb(sizeof(*pspoll));
        if (!skb)
                return;
        pspoll = skb_put(skb, sizeof(*pspoll));
        pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
                                            IEEE80211_STYPE_PSPOLL |
                                            IEEE80211_FCTL_PM);
        pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
        memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
        memcpy(pspoll->ta, mac, ETH_ALEN);

        rcu_read_lock();
        mac80211_hwsim_tx_frame(data->hw, skb,
                                rcu_dereference(vif->bss_conf.chanctx_conf)->def.chan);
        rcu_read_unlock();
}

static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
                                struct ieee80211_vif *vif, int ps)
{
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
        struct sk_buff *skb;
        struct ieee80211_hdr *hdr;
        struct ieee80211_tx_info *cb;

        if (!vp->assoc)
                return;

        wiphy_dbg(data->hw->wiphy,
                  "%s: send data::nullfunc to %pM ps=%d\n",
                  __func__, vp->bssid, ps);

        skb = dev_alloc_skb(sizeof(*hdr));
        if (!skb)
                return;
        hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
        hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
                                         IEEE80211_STYPE_NULLFUNC |
                                         IEEE80211_FCTL_TODS |
                                         (ps ? IEEE80211_FCTL_PM : 0));
        hdr->duration_id = cpu_to_le16(0);
        memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
        memcpy(hdr->addr2, mac, ETH_ALEN);
        memcpy(hdr->addr3, vp->bssid, ETH_ALEN);

        cb = IEEE80211_SKB_CB(skb);
        cb->control.rates[0].count = 1;
        cb->control.rates[1].idx = -1;

        rcu_read_lock();
        mac80211_hwsim_tx_frame(data->hw, skb,
                                rcu_dereference(vif->bss_conf.chanctx_conf)->def.chan);
        rcu_read_unlock();
}


static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
                                   struct ieee80211_vif *vif)
{
        struct mac80211_hwsim_data *data = dat;
        hwsim_send_nullfunc(data, mac, vif, 1);
}

static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
                                      struct ieee80211_vif *vif)
{
        struct mac80211_hwsim_data *data = dat;
        hwsim_send_nullfunc(data, mac, vif, 0);
}

static int hwsim_fops_ps_read(void *dat, u64 *val)
{
        struct mac80211_hwsim_data *data = dat;
        *val = data->ps;
        return 0;
}

static int hwsim_fops_ps_write(void *dat, u64 val)
{
        struct mac80211_hwsim_data *data = dat;
        enum ps_mode old_ps;

        if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
            val != PS_MANUAL_POLL)
                return -EINVAL;

        if (val == PS_MANUAL_POLL) {
                if (data->ps != PS_ENABLED)
                        return -EINVAL;
                local_bh_disable();
                ieee80211_iterate_active_interfaces_atomic(
                        data->hw, IEEE80211_IFACE_ITER_NORMAL,
                        hwsim_send_ps_poll, data);
                local_bh_enable();
                return 0;
        }
        old_ps = data->ps;
        data->ps = val;

        local_bh_disable();
        if (old_ps == PS_DISABLED && val != PS_DISABLED) {
                ieee80211_iterate_active_interfaces_atomic(
                        data->hw, IEEE80211_IFACE_ITER_NORMAL,
                        hwsim_send_nullfunc_ps, data);
        } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
                ieee80211_iterate_active_interfaces_atomic(
                        data->hw, IEEE80211_IFACE_ITER_NORMAL,
                        hwsim_send_nullfunc_no_ps, data);
        }
        local_bh_enable();

        return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
                         "%llu\n");

static int hwsim_write_simulate_radar(void *dat, u64 val)
{
        struct mac80211_hwsim_data *data = dat;

        ieee80211_radar_detected(data->hw, NULL);

        return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(hwsim_simulate_radar, NULL,
                         hwsim_write_simulate_radar, "%llu\n");

static int hwsim_fops_group_read(void *dat, u64 *val)
{
        struct mac80211_hwsim_data *data = dat;
        *val = data->group;
        return 0;
}

static int hwsim_fops_group_write(void *dat, u64 val)
{
        struct mac80211_hwsim_data *data = dat;
        data->group = val;
        return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_group,
                         hwsim_fops_group_read, hwsim_fops_group_write,
                         "%llx\n");

static int hwsim_fops_rx_rssi_read(void *dat, u64 *val)
{
        struct mac80211_hwsim_data *data = dat;
        *val = data->rx_rssi;
        return 0;
}

static int hwsim_fops_rx_rssi_write(void *dat, u64 val)
{
        struct mac80211_hwsim_data *data = dat;
        int rssi = (int)val;

        if (rssi >= 0 || rssi < -100)
                return -EINVAL;

        data->rx_rssi = rssi;
        return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_rx_rssi,
                         hwsim_fops_rx_rssi_read, hwsim_fops_rx_rssi_write,
                         "%lld\n");

static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
                                        struct net_device *dev)
{
        /* TODO: allow packet injection */
        dev_kfree_skb(skb);
        return NETDEV_TX_OK;
}

static inline u64 mac80211_hwsim_get_tsf_raw(void)
{
        return ktime_to_us(ktime_get_real());
}

static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
{
        u64 now = mac80211_hwsim_get_tsf_raw();
        return cpu_to_le64(now + data->tsf_offset);
}

static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
                                  struct ieee80211_vif *vif)
{
        struct mac80211_hwsim_data *data = hw->priv;
        return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
}

static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
                struct ieee80211_vif *vif, u64 tsf)
{
        struct mac80211_hwsim_data *data = hw->priv;
        u64 now = mac80211_hwsim_get_tsf(hw, vif);
        /* MLD not supported here */
        u32 bcn_int = data->link_data[0].beacon_int;
        u64 delta = abs(tsf - now);
        struct ieee80211_bss_conf *conf;

        conf = link_conf_dereference_protected(vif, data->link_data[0].link_id);
        if (conf && !conf->enable_beacon)
                return;

        /* adjust after beaconing with new timestamp at old TBTT */
        if (tsf > now) {
                data->tsf_offset += delta;
                data->bcn_delta = do_div(delta, bcn_int);
        } else {
                data->tsf_offset -= delta;
                data->bcn_delta = -(s64)do_div(delta, bcn_int);
        }
}

static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
                                      struct sk_buff *tx_skb,
                                      struct ieee80211_channel *chan)
{
        struct mac80211_hwsim_data *data = hw->priv;
        struct sk_buff *skb;
        struct hwsim_radiotap_hdr *hdr;
        u16 flags, bitrate;
        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
        struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);

        if (!txrate)
                bitrate = 0;
        else
                bitrate = txrate->bitrate;

        if (!netif_running(hwsim_mon))
                return;

        skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
        if (skb == NULL)
                return;

        hdr = skb_push(skb, sizeof(*hdr));
        hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
        hdr->hdr.it_pad = 0;
        hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
        hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
                                          (1 << IEEE80211_RADIOTAP_RATE) |
                                          (1 << IEEE80211_RADIOTAP_TSFT) |
                                          (1 << IEEE80211_RADIOTAP_CHANNEL));
        hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
        hdr->rt_flags = 0;
        hdr->rt_rate = bitrate / 5;
        hdr->rt_channel = cpu_to_le16(chan->center_freq);
        flags = IEEE80211_CHAN_2GHZ;
        if (txrate && txrate->flags & IEEE80211_RATE_ERP_G)
                flags |= IEEE80211_CHAN_OFDM;
        else
                flags |= IEEE80211_CHAN_CCK;
        hdr->rt_chbitmask = cpu_to_le16(flags);

        skb->dev = hwsim_mon;
        skb_reset_mac_header(skb);
        skb->ip_summed = CHECKSUM_UNNECESSARY;
        skb->pkt_type = PACKET_OTHERHOST;
        skb->protocol = htons(ETH_P_802_2);
        memset(skb->cb, 0, sizeof(skb->cb));
        netif_rx(skb);
}


static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
                                       const u8 *addr)
{
        struct sk_buff *skb;
        struct hwsim_radiotap_ack_hdr *hdr;
        u16 flags;
        struct ieee80211_hdr *hdr11;

        if (!netif_running(hwsim_mon))
                return;

        skb = dev_alloc_skb(100);
        if (skb == NULL)
                return;

        hdr = skb_put(skb, sizeof(*hdr));
        hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
        hdr->hdr.it_pad = 0;
        hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
        hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
                                          (1 << IEEE80211_RADIOTAP_CHANNEL));
        hdr->rt_flags = 0;
        hdr->pad = 0;
        hdr->rt_channel = cpu_to_le16(chan->center_freq);
        flags = IEEE80211_CHAN_2GHZ;
        hdr->rt_chbitmask = cpu_to_le16(flags);

        hdr11 = skb_put(skb, 10);
        hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
                                           IEEE80211_STYPE_ACK);
        hdr11->duration_id = cpu_to_le16(0);
        memcpy(hdr11->addr1, addr, ETH_ALEN);

        skb->dev = hwsim_mon;
        skb_reset_mac_header(skb);
        skb->ip_summed = CHECKSUM_UNNECESSARY;
        skb->pkt_type = PACKET_OTHERHOST;
        skb->protocol = htons(ETH_P_802_2);
        memset(skb->cb, 0, sizeof(skb->cb));
        netif_rx(skb);
}

struct mac80211_hwsim_addr_match_data {
        u8 addr[ETH_ALEN];
        bool ret;
};

static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
                                     struct ieee80211_vif *vif)
{
        int i;
        struct mac80211_hwsim_addr_match_data *md = data;

        if (memcmp(mac, md->addr, ETH_ALEN) == 0) {
                md->ret = true;
                return;
        }

        /* Match the link address */
        for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
                struct ieee80211_bss_conf *conf;

                conf = rcu_dereference(vif->link_conf[i]);
                if (!conf)
                        continue;

                if (memcmp(conf->addr, md->addr, ETH_ALEN) == 0) {
                        md->ret = true;
                        return;
                }
        }
}

static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
                                      const u8 *addr)
{
        struct mac80211_hwsim_addr_match_data md = {
                .ret = false,
        };

        if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
                return true;

        memcpy(md.addr, addr, ETH_ALEN);

        ieee80211_iterate_active_interfaces_atomic(data->hw,
                                                   IEEE80211_IFACE_ITER_NORMAL,
                                                   mac80211_hwsim_addr_iter,
                                                   &md);

        return md.ret;
}

static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
                           struct sk_buff *skb)
{
        switch (data->ps) {
        case PS_DISABLED:
                return true;
        case PS_ENABLED:
                return false;
        case PS_AUTO_POLL:
                /* TODO: accept (some) Beacons by default and other frames only
                 * if pending PS-Poll has been sent */
                return true;
        case PS_MANUAL_POLL:
                /* Allow unicast frames to own address if there is a pending
                 * PS-Poll */
                if (data->ps_poll_pending &&
                    mac80211_hwsim_addr_match(data, skb->data + 4)) {
                        data->ps_poll_pending = false;
                        return true;
                }
                return false;
        }

        return true;
}

static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
                                  struct sk_buff *skb, int portid)
{
        struct net *net;
        bool found = false;
        int res = -ENOENT;

        rcu_read_lock();
        for_each_net_rcu(net) {
                if (data->netgroup == hwsim_net_get_netgroup(net)) {
                        res = genlmsg_unicast(net, skb, portid);
                        found = true;
                        break;
                }
        }
        rcu_read_unlock();

        if (!found)
                nlmsg_free(skb);

        return res;
}

static void mac80211_hwsim_config_mac_nl(struct ieee80211_hw *hw,
                                         const u8 *addr, bool add)
{
        struct mac80211_hwsim_data *data = hw->priv;
        u32 _portid = READ_ONCE(data->wmediumd);
        struct sk_buff *skb;
        void *msg_head;

        WARN_ON(!is_valid_ether_addr(addr));

        if (!_portid && !hwsim_virtio_enabled)
                return;

        skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
        if (!skb)
                return;

        msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
                               add ? HWSIM_CMD_ADD_MAC_ADDR :
                                     HWSIM_CMD_DEL_MAC_ADDR);
        if (!msg_head) {
                pr_debug("mac80211_hwsim: problem with msg_head\n");
                goto nla_put_failure;
        }

        if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
                    ETH_ALEN, data->addresses[1].addr))
                goto nla_put_failure;

        if (nla_put(skb, HWSIM_ATTR_ADDR_RECEIVER, ETH_ALEN, addr))
                goto nla_put_failure;

        genlmsg_end(skb, msg_head);

        if (hwsim_virtio_enabled)
                hwsim_tx_virtio(data, skb);
        else
                hwsim_unicast_netgroup(data, skb, _portid);
        return;
nla_put_failure:
        nlmsg_free(skb);
}

static inline u16 trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate *rate)
{
        u16 result = 0;

        if (rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
                result |= MAC80211_HWSIM_TX_RC_USE_RTS_CTS;
        if (rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
                result |= MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT;
        if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
                result |= MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE;
        if (rate->flags & IEEE80211_TX_RC_MCS)
                result |= MAC80211_HWSIM_TX_RC_MCS;
        if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)
                result |= MAC80211_HWSIM_TX_RC_GREEN_FIELD;
        if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
                result |= MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH;
        if (rate->flags & IEEE80211_TX_RC_DUP_DATA)
                result |= MAC80211_HWSIM_TX_RC_DUP_DATA;
        if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
                result |= MAC80211_HWSIM_TX_RC_SHORT_GI;
        if (rate->flags & IEEE80211_TX_RC_VHT_MCS)
                result |= MAC80211_HWSIM_TX_RC_VHT_MCS;
        if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
                result |= MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH;
        if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
                result |= MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH;

        return result;
}

static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
                                       struct sk_buff *my_skb,
                                       int dst_portid,
                                       struct ieee80211_channel *channel)
{
        struct sk_buff *skb;
        struct mac80211_hwsim_data *data = hw->priv;
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
        void *msg_head;
        unsigned int hwsim_flags = 0;
        int i;
        struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
        struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES];
        uintptr_t cookie;

        if (data->ps != PS_DISABLED)
                hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
        /* If the queue contains MAX_QUEUE skb's drop some */
        if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
                /* Dropping until WARN_QUEUE level */
                while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
                        ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
                        data->tx_dropped++;
                }
        }

        skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
        if (skb == NULL)
                goto nla_put_failure;

        msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
                               HWSIM_CMD_FRAME);
        if (msg_head == NULL) {
                pr_debug("mac80211_hwsim: problem with msg_head\n");
                goto nla_put_failure;
        }

        if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
                    ETH_ALEN, data->addresses[1].addr))
                goto nla_put_failure;

        /* We get the skb->data */
        if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
                goto nla_put_failure;

        /* We get the flags for this transmission, and we translate them to
           wmediumd flags  */

        if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
                hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;

        if (info->flags & IEEE80211_TX_CTL_NO_ACK)
                hwsim_flags |= HWSIM_TX_CTL_NO_ACK;

        if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
                goto nla_put_failure;

        if (nla_put_u32(skb, HWSIM_ATTR_FREQ, channel->center_freq))
                goto nla_put_failure;

        /* We get the tx control (rate and retries) info*/

        for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
                tx_attempts[i].idx = info->status.rates[i].idx;
                tx_attempts_flags[i].idx = info->status.rates[i].idx;
                tx_attempts[i].count = info->status.rates[i].count;
                tx_attempts_flags[i].flags =
                                trans_tx_rate_flags_ieee2hwsim(
                                                &info->status.rates[i]);
        }

        if (nla_put(skb, HWSIM_ATTR_TX_INFO,
                    sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
                    tx_attempts))
                goto nla_put_failure;

        if (nla_put(skb, HWSIM_ATTR_TX_INFO_FLAGS,
                    sizeof(struct hwsim_tx_rate_flag) * IEEE80211_TX_MAX_RATES,
                    tx_attempts_flags))
                goto nla_put_failure;

        /* We create a cookie to identify this skb */
        cookie = atomic_inc_return(&data->pending_cookie);
        info->rate_driver_data[0] = (void *)cookie;
        if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
                goto nla_put_failure;

        genlmsg_end(skb, msg_head);

        if (hwsim_virtio_enabled) {
                if (hwsim_tx_virtio(data, skb))
                        goto err_free_txskb;
        } else {
                if (hwsim_unicast_netgroup(data, skb, dst_portid))
                        goto err_free_txskb;
        }

        /* Enqueue the packet */
        skb_queue_tail(&data->pending, my_skb);
        data->tx_pkts++;
        data->tx_bytes += my_skb->len;
        return;

nla_put_failure:
        nlmsg_free(skb);
err_free_txskb:
        pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
        ieee80211_free_txskb(hw, my_skb);
        data->tx_failed++;
}

static bool hwsim_chans_compat(struct ieee80211_channel *c1,
                               struct ieee80211_channel *c2)
{
        if (!c1 || !c2)
                return false;

        return c1->center_freq == c2->center_freq;
}

struct tx_iter_data {
        struct ieee80211_channel *channel;
        bool receive;
};

static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
                                   struct ieee80211_vif *vif)
{
        struct tx_iter_data *data = _data;
        int i;

        /* For NAN Device simulation purposes, assume that NAN is always
         * on channel 6 or channel 149.
         */
        if (vif->type == NL80211_IFTYPE_NAN) {
                data->receive = (data->channel &&
                                 (data->channel->center_freq == 2437 ||
                                  data->channel->center_freq == 5745));
                return;
        }

        for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
                struct ieee80211_bss_conf *conf;
                struct ieee80211_chanctx_conf *chanctx;

                conf = rcu_dereference(vif->link_conf[i]);
                if (!conf)
                        continue;

                chanctx = rcu_dereference(conf->chanctx_conf);
                if (!chanctx)
                        continue;

                if (!hwsim_chans_compat(data->channel, chanctx->def.chan))
                        continue;

                data->receive = true;
                return;
        }
}

static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
{
        /*
         * To enable this code, #define the HWSIM_RADIOTAP_OUI,
         * e.g. like this:
         * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
         * (but you should use a valid OUI, not that)
         *
         * If anyone wants to 'donate' a radiotap OUI/subns code
         * please send a patch removing this #ifdef and changing
         * the values accordingly.
         */
#ifdef HWSIM_RADIOTAP_OUI
        struct ieee80211_radiotap_vendor_tlv *rtap;
        static const char vendor_data[8] = "ABCDEFGH";

        // Make sure no padding is needed
        BUILD_BUG_ON(sizeof(vendor_data) % 4);
        /* this is last radiotap info before the mac header, so
         * skb_reset_mac_header for mac8022 to know the end of
         * the radiotap TLV/beginning of the 802.11 header
         */
        skb_reset_mac_header(skb);

        /*
         * Note that this code requires the headroom in the SKB
         * that was allocated earlier.
         */
        rtap = skb_push(skb, sizeof(*rtap) + sizeof(vendor_data));

        rtap->len = cpu_to_le16(sizeof(*rtap) -
                                sizeof(struct ieee80211_radiotap_tlv) +
                                sizeof(vendor_data));
        rtap->type = cpu_to_le16(IEEE80211_RADIOTAP_VENDOR_NAMESPACE);

        rtap->content.oui[0] = HWSIM_RADIOTAP_OUI[0];
        rtap->content.oui[1] = HWSIM_RADIOTAP_OUI[1];
        rtap->content.oui[2] = HWSIM_RADIOTAP_OUI[2];
        rtap->content.oui_subtype = 127;
        /* clear reserved field */
        rtap->content.reserved = 0;
        rtap->content.vendor_type = 0;
        memcpy(rtap->content.data, vendor_data, sizeof(vendor_data));

        IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_TLV_AT_END;
#endif
}

static void mac80211_hwsim_rx(struct mac80211_hwsim_data *data,
                              struct ieee80211_rx_status *rx_status,
                              struct sk_buff *skb)
{
        struct ieee80211_hdr *hdr = (void *)skb->data;

        if (!ieee80211_has_morefrags(hdr->frame_control) &&
            !is_multicast_ether_addr(hdr->addr1) &&
            (ieee80211_is_mgmt(hdr->frame_control) ||
             ieee80211_is_data(hdr->frame_control))) {
                struct ieee80211_sta *sta;
                unsigned int link_id;

                rcu_read_lock();
                sta = ieee80211_find_sta_by_link_addrs(data->hw, hdr->addr2,
                                                       hdr->addr1, &link_id);
                if (sta) {
                        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;

                        if (ieee80211_has_pm(hdr->frame_control))
                                sp->active_links_rx &= ~BIT(link_id);
                        else
                                sp->active_links_rx |= BIT(link_id);

                        rx_status->link_valid = true;
                        rx_status->link_id = link_id;
                }
                rcu_read_unlock();
        }

        memcpy(IEEE80211_SKB_RXCB(skb), rx_status, sizeof(*rx_status));

        mac80211_hwsim_add_vendor_rtap(skb);

        data->rx_pkts++;
        data->rx_bytes += skb->len;
        ieee80211_rx_irqsafe(data->hw, skb);
}

static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
                                          struct sk_buff *skb,
                                          struct ieee80211_channel *chan)
{
        struct mac80211_hwsim_data *data = hw->priv, *data2;
        bool ack = false;
        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
        struct ieee80211_rx_status rx_status;
        u64 now;

        memset(&rx_status, 0, sizeof(rx_status));
        rx_status.flag |= RX_FLAG_MACTIME_START;
        rx_status.freq = chan->center_freq;
        rx_status.freq_offset = chan->freq_offset ? 1 : 0;
        rx_status.band = chan->band;
        if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
                rx_status.rate_idx =
                        ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
                rx_status.nss =
                        ieee80211_rate_get_vht_nss(&info->control.rates[0]);
                rx_status.encoding = RX_ENC_VHT;
        } else {
                rx_status.rate_idx = info->control.rates[0].idx;
                if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
                        rx_status.encoding = RX_ENC_HT;
        }
        if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
                rx_status.bw = RATE_INFO_BW_40;
        else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
                rx_status.bw = RATE_INFO_BW_80;
        else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
                rx_status.bw = RATE_INFO_BW_160;
        else
                rx_status.bw = RATE_INFO_BW_20;
        if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
                rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
        /* TODO: simulate optional packet loss */
        rx_status.signal = data->rx_rssi;
        if (info->control.vif)
                rx_status.signal += info->control.vif->bss_conf.txpower;

        if (data->ps != PS_DISABLED)
                hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);

        /* release the skb's source info */
        skb_orphan(skb);
        skb_dst_drop(skb);
        skb->mark = 0;
        skb_ext_reset(skb);
        nf_reset_ct(skb);

        /*
         * Get absolute mactime here so all HWs RX at the "same time", and
         * absolute TX time for beacon mactime so the timestamp matches.
         * Giving beacons a different mactime than non-beacons looks messy, but
         * it helps the Toffset be exact and a ~10us mactime discrepancy
         * probably doesn't really matter.
         */
        if (ieee80211_is_beacon(hdr->frame_control) ||
            ieee80211_is_probe_resp(hdr->frame_control)) {
                rx_status.boottime_ns = ktime_get_boottime_ns();
                now = data->abs_bcn_ts;
        } else {
                now = mac80211_hwsim_get_tsf_raw();
        }

        /* Copy skb to all enabled radios that are on the current frequency */
        spin_lock(&hwsim_radio_lock);
        list_for_each_entry(data2, &hwsim_radios, list) {
                struct sk_buff *nskb;
                struct tx_iter_data tx_iter_data = {
                        .receive = false,
                        .channel = chan,
                };

                if (data == data2)
                        continue;

                if (!data2->started || (data2->idle && !data2->tmp_chan) ||
                    !hwsim_ps_rx_ok(data2, skb))
                        continue;

                if (!(data->group & data2->group))
                        continue;

                if (data->netgroup != data2->netgroup)
                        continue;

                if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
                    !hwsim_chans_compat(chan, data2->channel)) {
                        ieee80211_iterate_active_interfaces_atomic(
                                data2->hw, IEEE80211_IFACE_ITER_NORMAL,
                                mac80211_hwsim_tx_iter, &tx_iter_data);
                        if (!tx_iter_data.receive)
                                continue;
                }

                /*
                 * reserve some space for our vendor and the normal
                 * radiotap header, since we're copying anyway
                 */
                if (skb->len < PAGE_SIZE && paged_rx) {
                        struct page *page = alloc_page(GFP_ATOMIC);

                        if (!page)
                                continue;

                        nskb = dev_alloc_skb(128);
                        if (!nskb) {
                                __free_page(page);
                                continue;
                        }

                        memcpy(page_address(page), skb->data, skb->len);
                        skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
                } else {
                        nskb = skb_copy(skb, GFP_ATOMIC);
                        if (!nskb)
                                continue;
                }

                if (mac80211_hwsim_addr_match(data2, hdr->addr1))
                        ack = true;

                rx_status.mactime = now + data2->tsf_offset;

                mac80211_hwsim_rx(data2, &rx_status, nskb);
        }
        spin_unlock(&hwsim_radio_lock);

        return ack;
}

static struct ieee80211_bss_conf *
mac80211_hwsim_select_tx_link(struct mac80211_hwsim_data *data,
                              struct ieee80211_vif *vif,
                              struct ieee80211_sta *sta,
                              struct ieee80211_hdr *hdr,
                              struct ieee80211_link_sta **link_sta)
{
        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
        int i;

        if (!ieee80211_vif_is_mld(vif))
                return &vif->bss_conf;

        WARN_ON(is_multicast_ether_addr(hdr->addr1));

        if (WARN_ON_ONCE(!sta || !sta->valid_links))
                return &vif->bss_conf;

        for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
                struct ieee80211_bss_conf *bss_conf;
                unsigned int link_id;

                /* round-robin the available link IDs */
                link_id = (sp->last_link + i + 1) % ARRAY_SIZE(vif->link_conf);

                if (!(vif->active_links & BIT(link_id)))
                        continue;

                if (!(sp->active_links_rx & BIT(link_id)))
                        continue;

                *link_sta = rcu_dereference(sta->link[link_id]);
                if (!*link_sta)
                        continue;

                bss_conf = rcu_dereference(vif->link_conf[link_id]);
                if (WARN_ON_ONCE(!bss_conf))
                        continue;

                /* can happen while switching links */
                if (!rcu_access_pointer(bss_conf->chanctx_conf))
                        continue;

                sp->last_link = link_id;
                return bss_conf;
        }

        return NULL;
}

static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
                              struct ieee80211_tx_control *control,
                              struct sk_buff *skb)
{
        struct mac80211_hwsim_data *data = hw->priv;
        struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
        struct ieee80211_hdr *hdr = (void *)skb->data;
        struct ieee80211_chanctx_conf *chanctx_conf;
        struct ieee80211_channel *channel;
        struct ieee80211_vif *vif = txi->control.vif;
        bool ack;
        enum nl80211_chan_width confbw = NL80211_CHAN_WIDTH_20_NOHT;
        u32 _portid, i;

        if (WARN_ON(skb->len < 10)) {
                /* Should not happen; just a sanity check for addr1 use */
                ieee80211_free_txskb(hw, skb);
                return;
        }

        if (vif && vif->type == NL80211_IFTYPE_NAN && !data->tmp_chan) {
                /* For NAN Device simulation purposes, assume that NAN is always
                 * on channel 6 or channel 149, unless a ROC is in progress (for
                 * USD use cases).
                 */
                if (data->nan_curr_dw_band == NL80211_BAND_2GHZ)
                        channel = ieee80211_get_channel(hw->wiphy, 2437);
                else if (data->nan_curr_dw_band == NL80211_BAND_5GHZ)
                        channel = ieee80211_get_channel(hw->wiphy, 5745);
                else
                        channel = NULL;

                if (WARN_ON(!channel)) {
                        ieee80211_free_txskb(hw, skb);
                        return;
                }
        } else if (!data->use_chanctx) {
                channel = data->channel;
                confbw = data->bw;
        } else if (txi->hw_queue == 4) {
                channel = data->tmp_chan;
        } else {
                u8 link = u32_get_bits(IEEE80211_SKB_CB(skb)->control.flags,
                                       IEEE80211_TX_CTRL_MLO_LINK);
                struct ieee80211_link_sta *link_sta = NULL;
                struct ieee80211_sta *sta = control->sta;
                struct ieee80211_bss_conf *bss_conf;

                /* This can happen in case of monitor injection */
                if (!vif) {
                        ieee80211_free_txskb(hw, skb);
                        return;
                }

                if (link != IEEE80211_LINK_UNSPECIFIED) {
                        bss_conf = rcu_dereference(vif->link_conf[link]);
                        if (sta)
                                link_sta = rcu_dereference(sta->link[link]);
                } else {
                        bss_conf = mac80211_hwsim_select_tx_link(data, vif, sta,
                                                                 hdr, &link_sta);
                }

                if (unlikely(!bss_conf)) {
                        /* if it's an MLO STA, it might have deactivated all
                         * links temporarily - but we don't handle real PS in
                         * this code yet, so just drop the frame in that case
                         */
                        WARN(link != IEEE80211_LINK_UNSPECIFIED || !sta || !sta->mlo,
                             "link:%d, sta:%pM, sta->mlo:%d\n",
                             link, sta ? sta->addr : NULL, sta ? sta->mlo : -1);
                        ieee80211_free_txskb(hw, skb);
                        return;
                }

                /* Do address translations only between shared links. It is
                 * possible that while an non-AP MLD station and an AP MLD
                 * station have shared links, the frame is intended to be sent
                 * on a link which is not shared (for example when sending a
                 * probe response).
                 */
                if (sta && sta->mlo && link_sta) {
                        /* address translation to link addresses on TX */
                        ether_addr_copy(hdr->addr1, link_sta->addr);
                        ether_addr_copy(hdr->addr2, bss_conf->addr);
                        /* translate A3 only if it's the BSSID */
                        if (!ieee80211_has_tods(hdr->frame_control) &&
                            !ieee80211_has_fromds(hdr->frame_control)) {
                                if (ether_addr_equal(hdr->addr3, sta->addr))
                                        ether_addr_copy(hdr->addr3, link_sta->addr);
                                else if (ether_addr_equal(hdr->addr3, vif->addr))
                                        ether_addr_copy(hdr->addr3, bss_conf->addr);
                        }
                        /* no need to look at A4, if present it's SA */
                }

                chanctx_conf = rcu_dereference(bss_conf->chanctx_conf);
                if (chanctx_conf) {
                        channel = chanctx_conf->def.chan;
                        confbw = chanctx_conf->def.width;
                } else {
                        channel = NULL;
                }
        }

        if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
                ieee80211_free_txskb(hw, skb);
                return;
        }

        if (data->idle && !data->tmp_chan) {
                wiphy_dbg(hw->wiphy, "Trying to TX when idle - reject\n");
                ieee80211_free_txskb(hw, skb);
                return;
        }

        if (vif)
                hwsim_check_magic(vif);
        if (control->sta)
                hwsim_check_sta_magic(control->sta);

        if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
                ieee80211_get_tx_rates(vif, control->sta, skb,
                                       txi->control.rates,
                                       ARRAY_SIZE(txi->control.rates));

        for (i = 0; i < ARRAY_SIZE(txi->control.rates); i++) {
                u16 rflags = txi->control.rates[i].flags;
                /* initialize to data->bw for 5/10 MHz handling */
                enum nl80211_chan_width bw = data->bw;

                if (txi->control.rates[i].idx == -1)
                        break;

                if (rflags & IEEE80211_TX_RC_40_MHZ_WIDTH)
                        bw = NL80211_CHAN_WIDTH_40;
                else if (rflags & IEEE80211_TX_RC_80_MHZ_WIDTH)
                        bw = NL80211_CHAN_WIDTH_80;
                else if (rflags & IEEE80211_TX_RC_160_MHZ_WIDTH)
                        bw = NL80211_CHAN_WIDTH_160;

                if (WARN_ON(hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw)))
                        return;
        }

        if (skb->len >= 24 + 8 &&
            ieee80211_is_probe_resp(hdr->frame_control)) {
                /* fake header transmission time */
                struct ieee80211_mgmt *mgmt;
                struct ieee80211_rate *txrate;
                /* TODO: get MCS */
                int bitrate = 100;
                u64 ts;

                mgmt = (struct ieee80211_mgmt *)skb->data;
                txrate = ieee80211_get_tx_rate(hw, txi);
                if (txrate)
                        bitrate = txrate->bitrate;
                ts = mac80211_hwsim_get_tsf_raw();
                mgmt->u.probe_resp.timestamp =
                        cpu_to_le64(ts + data->tsf_offset +
                                    24 * 8 * 10 / bitrate);
        }

        mac80211_hwsim_monitor_rx(hw, skb, channel);

        /* wmediumd mode check */
        _portid = READ_ONCE(data->wmediumd);

        if (_portid || hwsim_virtio_enabled)
                return mac80211_hwsim_tx_frame_nl(hw, skb, _portid, channel);

        /* NO wmediumd detected, perfect medium simulation */
        data->tx_pkts++;
        data->tx_bytes += skb->len;
        ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);

        if (ack && skb->len >= 16)
                mac80211_hwsim_monitor_ack(channel, hdr->addr2);

        ieee80211_tx_info_clear_status(txi);

        /* frame was transmitted at most favorable rate at first attempt */
        txi->control.rates[0].count = 1;
        txi->control.rates[1].idx = -1;

        if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
                txi->flags |= IEEE80211_TX_STAT_ACK;
        ieee80211_tx_status_irqsafe(hw, skb);
}


static int mac80211_hwsim_start(struct ieee80211_hw *hw)
{
        struct mac80211_hwsim_data *data = hw->priv;
        wiphy_dbg(hw->wiphy, "%s\n", __func__);
        data->started = true;
        return 0;
}


static void mac80211_hwsim_stop(struct ieee80211_hw *hw, bool suspend)
{
        struct mac80211_hwsim_data *data = hw->priv;
        int i;

        data->started = false;

        for (i = 0; i < ARRAY_SIZE(data->link_data); i++)
                hrtimer_cancel(&data->link_data[i].beacon_timer);

        while (!skb_queue_empty(&data->pending))
                ieee80211_free_txskb(hw, skb_dequeue(&data->pending));

        wiphy_dbg(hw->wiphy, "%s\n", __func__);
}


static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
                                        struct ieee80211_vif *vif)
{
        wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
                  __func__, ieee80211_vif_type_p2p(vif),
                  vif->addr);
        hwsim_set_magic(vif);

        if (vif->type != NL80211_IFTYPE_MONITOR)
                mac80211_hwsim_config_mac_nl(hw, vif->addr, true);

        vif->cab_queue = 0;
        vif->hw_queue[IEEE80211_AC_VO] = 0;
        vif->hw_queue[IEEE80211_AC_VI] = 1;
        vif->hw_queue[IEEE80211_AC_BE] = 2;
        vif->hw_queue[IEEE80211_AC_BK] = 3;

        return 0;
}

#ifdef CONFIG_MAC80211_DEBUGFS
static void
mac80211_hwsim_link_add_debugfs(struct ieee80211_hw *hw,
                                struct ieee80211_vif *vif,
                                struct ieee80211_bss_conf *link_conf,
                                struct dentry *dir)
{
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;

        debugfs_create_u32("skip_beacons", 0600, dir,
                           &vp->skip_beacons[link_conf->link_id]);
}
#endif

static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
                                           struct ieee80211_vif *vif,
                                           enum nl80211_iftype newtype,
                                           bool newp2p)
{
        newtype = ieee80211_iftype_p2p(newtype, newp2p);
        wiphy_dbg(hw->wiphy,
                  "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
                  __func__, ieee80211_vif_type_p2p(vif),
                    newtype, vif->addr);
        hwsim_check_magic(vif);

        /*
         * interface may change from non-AP to AP in
         * which case this needs to be set up again
         */
        vif->cab_queue = 0;

        return 0;
}

static void mac80211_hwsim_remove_interface(
        struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
        wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
                  __func__, ieee80211_vif_type_p2p(vif),
                  vif->addr);
        hwsim_check_magic(vif);
        hwsim_clear_magic(vif);
        if (vif->type != NL80211_IFTYPE_MONITOR)
                mac80211_hwsim_config_mac_nl(hw, vif->addr, false);
}

static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
                                    struct sk_buff *skb,
                                    struct ieee80211_channel *chan)
{
        struct mac80211_hwsim_data *data = hw->priv;
        u32 _portid = READ_ONCE(data->wmediumd);

        if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
                struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
                ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
                                       txi->control.rates,
                                       ARRAY_SIZE(txi->control.rates));
        }

        mac80211_hwsim_monitor_rx(hw, skb, chan);

        if (_portid || hwsim_virtio_enabled)
                return mac80211_hwsim_tx_frame_nl(hw, skb, _portid, chan);

        data->tx_pkts++;
        data->tx_bytes += skb->len;
        mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
        dev_kfree_skb(skb);
}

static void __mac80211_hwsim_beacon_tx(struct ieee80211_bss_conf *link_conf,
                                       struct mac80211_hwsim_data *data,
                                       struct ieee80211_hw *hw,
                                       struct ieee80211_vif *vif,
                                       struct sk_buff *skb)
{
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
        struct ieee80211_tx_info *info;
        struct ieee80211_rate *txrate;
        struct ieee80211_mgmt *mgmt;
        /* TODO: get MCS */
        int bitrate = 100;

        if (vp->skip_beacons[link_conf->link_id]) {
                vp->skip_beacons[link_conf->link_id]--;
                dev_kfree_skb(skb);
                return;
        }

        info = IEEE80211_SKB_CB(skb);
        if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
                ieee80211_get_tx_rates(vif, NULL, skb,
                                       info->control.rates,
                                       ARRAY_SIZE(info->control.rates));

        txrate = ieee80211_get_tx_rate(hw, info);
        if (txrate)
                bitrate = txrate->bitrate;

        mgmt = (struct ieee80211_mgmt *) skb->data;
        /* fake header transmission time */
        data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
        if (ieee80211_is_s1g_beacon(mgmt->frame_control)) {
                struct ieee80211_ext *ext = (void *) mgmt;

                ext->u.s1g_beacon.timestamp = cpu_to_le32(data->abs_bcn_ts +
                                                          data->tsf_offset +
                                                          10 * 8 * 10 /
                                                          bitrate);
        } else {
                mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
                                                       data->tsf_offset +
                                                       24 * 8 * 10 /
                                                       bitrate);
        }

        mac80211_hwsim_tx_frame(hw, skb,
                        rcu_dereference(link_conf->chanctx_conf)->def.chan);
}

static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
                                     struct ieee80211_vif *vif)
{
        struct mac80211_hwsim_link_data *link_data = arg;
        u32 link_id = link_data->link_id;
        struct ieee80211_bss_conf *link_conf, *tx_bss_conf;
        struct mac80211_hwsim_data *data =
                container_of(link_data, struct mac80211_hwsim_data,
                             link_data[link_id]);
        struct ieee80211_hw *hw = data->hw;
        struct sk_buff *skb;

        hwsim_check_magic(vif);

        link_conf = rcu_dereference(vif->link_conf[link_id]);
        if (!link_conf)
                return;

        if (vif->type != NL80211_IFTYPE_AP &&
            vif->type != NL80211_IFTYPE_MESH_POINT &&
            vif->type != NL80211_IFTYPE_ADHOC &&
            vif->type != NL80211_IFTYPE_OCB)
                return;

        tx_bss_conf = rcu_access_pointer(link_conf->tx_bss_conf);
        if (tx_bss_conf && tx_bss_conf != link_conf)
                return;

        if (link_conf->ema_ap) {
                struct ieee80211_ema_beacons *ema;
                u8 i = 0;

                ema = ieee80211_beacon_get_template_ema_list(hw, vif, link_id);
                if (!ema || !ema->cnt)
                        return;

                for (i = 0; i < ema->cnt; i++) {
                        __mac80211_hwsim_beacon_tx(link_conf, data, hw, vif,
                                                   ema->bcn[i].skb);
                        ema->bcn[i].skb = NULL; /* Already freed */
                }
                ieee80211_beacon_free_ema_list(ema);
        } else {
                skb = ieee80211_beacon_get(hw, vif, link_id);
                if (!skb)
                        return;

                __mac80211_hwsim_beacon_tx(link_conf, data, hw, vif, skb);
        }

        while ((skb = ieee80211_get_buffered_bc(hw, vif)) != NULL) {
                mac80211_hwsim_tx_frame(hw, skb,
                        rcu_dereference(link_conf->chanctx_conf)->def.chan);
        }

        if (link_conf->csa_active && ieee80211_beacon_cntdwn_is_complete(vif, link_id))
                ieee80211_csa_finish(vif, link_id);

        if (link_conf->color_change_active &&
            ieee80211_beacon_cntdwn_is_complete(vif, link_id))
                ieee80211_color_change_finish(vif, link_id);
}

static enum hrtimer_restart
mac80211_hwsim_beacon(struct hrtimer *timer)
{
        struct mac80211_hwsim_link_data *link_data =
                container_of(timer, struct mac80211_hwsim_link_data, beacon_timer);
        struct mac80211_hwsim_data *data =
                container_of(link_data, struct mac80211_hwsim_data,
                             link_data[link_data->link_id]);
        struct ieee80211_hw *hw = data->hw;
        u64 bcn_int = link_data->beacon_int;

        if (!data->started)
                return HRTIMER_NORESTART;

        ieee80211_iterate_active_interfaces_atomic(
                hw, IEEE80211_IFACE_ITER_NORMAL,
                mac80211_hwsim_beacon_tx, link_data);

        /* beacon at new TBTT + beacon interval */
        if (data->bcn_delta) {
                bcn_int -= data->bcn_delta;
                data->bcn_delta = 0;
        }
        hrtimer_forward_now(&link_data->beacon_timer,
                            ns_to_ktime(bcn_int * NSEC_PER_USEC));
        return HRTIMER_RESTART;
}

static const char * const hwsim_chanwidths[] = {
        [NL80211_CHAN_WIDTH_5] = "ht5",
        [NL80211_CHAN_WIDTH_10] = "ht10",
        [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
        [NL80211_CHAN_WIDTH_20] = "ht20",
        [NL80211_CHAN_WIDTH_40] = "ht40",
        [NL80211_CHAN_WIDTH_80] = "vht80",
        [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
        [NL80211_CHAN_WIDTH_160] = "vht160",
        [NL80211_CHAN_WIDTH_1] = "1MHz",
        [NL80211_CHAN_WIDTH_2] = "2MHz",
        [NL80211_CHAN_WIDTH_4] = "4MHz",
        [NL80211_CHAN_WIDTH_8] = "8MHz",
        [NL80211_CHAN_WIDTH_16] = "16MHz",
        [NL80211_CHAN_WIDTH_320] = "eht320",
};

static int mac80211_hwsim_config(struct ieee80211_hw *hw, int radio_idx,
                                 u32 changed)
{
        struct mac80211_hwsim_data *data = hw->priv;
        struct ieee80211_conf *conf = &hw->conf;
        static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
                [IEEE80211_SMPS_AUTOMATIC] = "auto",
                [IEEE80211_SMPS_OFF] = "off",
                [IEEE80211_SMPS_STATIC] = "static",
                [IEEE80211_SMPS_DYNAMIC] = "dynamic",
        };
        int idx;

        if (conf->chandef.chan)
                wiphy_dbg(hw->wiphy,
                          "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
                          __func__,
                          conf->chandef.chan->center_freq,
                          conf->chandef.center_freq1,
                          conf->chandef.center_freq2,
                          hwsim_chanwidths[conf->chandef.width],
                          !!(conf->flags & IEEE80211_CONF_IDLE),
                          !!(conf->flags & IEEE80211_CONF_PS),
                          smps_modes[conf->smps_mode]);
        else
                wiphy_dbg(hw->wiphy,
                          "%s (freq=0 idle=%d ps=%d smps=%s)\n",
                          __func__,
                          !!(conf->flags & IEEE80211_CONF_IDLE),
                          !!(conf->flags & IEEE80211_CONF_PS),
                          smps_modes[conf->smps_mode]);

        data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);

        WARN_ON(conf->chandef.chan && data->use_chanctx);

        mutex_lock(&data->mutex);
        if (data->scanning && conf->chandef.chan) {
                for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
                        if (data->survey_data[idx].channel == data->channel) {
                                data->survey_data[idx].start =
                                        data->survey_data[idx].next_start;
                                data->survey_data[idx].end = jiffies;
                                break;
                        }
                }

                data->channel = conf->chandef.chan;
                data->bw = conf->chandef.width;

                for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
                        if (data->survey_data[idx].channel &&
                            data->survey_data[idx].channel != data->channel)
                                continue;
                        data->survey_data[idx].channel = data->channel;
                        data->survey_data[idx].next_start = jiffies;
                        break;
                }
        } else {
                data->channel = conf->chandef.chan;
                data->bw = conf->chandef.width;
        }
        mutex_unlock(&data->mutex);

        for (idx = 0; idx < ARRAY_SIZE(data->link_data); idx++) {
                struct mac80211_hwsim_link_data *link_data =
                        &data->link_data[idx];

                if (!data->started || !link_data->beacon_int) {
                        hrtimer_cancel(&link_data->beacon_timer);
                } else if (!hrtimer_active(&link_data->beacon_timer)) {
                        u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
                        u32 bcn_int = link_data->beacon_int;
                        u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);

                        hrtimer_start(&link_data->beacon_timer,
                                      ns_to_ktime(until_tbtt * NSEC_PER_USEC),
                                      HRTIMER_MODE_REL_SOFT);
                }
        }

        return 0;
}


static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
                                            unsigned int changed_flags,
                                            unsigned int *total_flags,u64 multicast)
{
        struct mac80211_hwsim_data *data = hw->priv;

        wiphy_dbg(hw->wiphy, "%s\n", __func__);

        data->rx_filter = 0;
        if (*total_flags & FIF_ALLMULTI)
                data->rx_filter |= FIF_ALLMULTI;
        if (*total_flags & FIF_MCAST_ACTION)
                data->rx_filter |= FIF_MCAST_ACTION;

        *total_flags = data->rx_filter;
}

static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
                                       struct ieee80211_vif *vif)
{
        unsigned int *count = data;
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;

        if (vp->bcn_en)
                (*count)++;
}

static void mac80211_hwsim_vif_info_changed(struct ieee80211_hw *hw,
                                            struct ieee80211_vif *vif,
                                            u64 changed)
{
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;

        hwsim_check_magic(vif);

        wiphy_dbg(hw->wiphy, "%s(changed=0x%llx vif->addr=%pM)\n",
                  __func__, changed, vif->addr);

        if (changed & BSS_CHANGED_ASSOC) {
                wiphy_dbg(hw->wiphy, "  ASSOC: assoc=%d aid=%d\n",
                          vif->cfg.assoc, vif->cfg.aid);
                vp->assoc = vif->cfg.assoc;
                vp->aid = vif->cfg.aid;
        }

        if (vif->type == NL80211_IFTYPE_STATION &&
            changed & (BSS_CHANGED_MLD_VALID_LINKS | BSS_CHANGED_MLD_TTLM)) {
                u16 usable_links = ieee80211_vif_usable_links(vif);

                if (vif->active_links != usable_links)
                        ieee80211_set_active_links_async(vif, usable_links);
        }
}

static void mac80211_hwsim_link_info_changed(struct ieee80211_hw *hw,
                                             struct ieee80211_vif *vif,
                                             struct ieee80211_bss_conf *info,
                                             u64 changed)
{
        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
        struct mac80211_hwsim_data *data = hw->priv;
        unsigned int link_id = info->link_id;
        struct mac80211_hwsim_link_data *link_data = &data->link_data[link_id];

        hwsim_check_magic(vif);

        wiphy_dbg(hw->wiphy, "%s(changed=0x%llx vif->addr=%pM, link id %u)\n",
                  __func__, (unsigned long long)changed, vif->addr, link_id);

        if (changed & BSS_CHANGED_BSSID) {
                wiphy_dbg(hw->wiphy, "%s: BSSID changed: %pM\n",
                          __func__, info->bssid);
                memcpy(vp->bssid, info->bssid, ETH_ALEN);
        }

        if (changed & BSS_CHANGED_BEACON_ENABLED) {
                wiphy_dbg(hw->wiphy, "  BCN EN: %d (BI=%u)\n",
                          info->enable_beacon, info->beacon_int);
                vp->bcn_en = info->enable_beacon;
                if (data->started &&
                    !hrtimer_active(&link_data->beacon_timer) &&
                    info->enable_beacon) {
                        u64 tsf, until_tbtt;
                        u32 bcn_int;
                        link_data->beacon_int = info->beacon_int * 1024;
                        tsf = mac80211_hwsim_get_tsf(hw, vif);
                        bcn_int = link_data->beacon_int;
                        until_tbtt = bcn_int - do_div(tsf, bcn_int);

                        hrtimer_start(&link_data->beacon_timer,
                                      ns_to_ktime(until_tbtt * NSEC_PER_USEC),
                                      HRTIMER_MODE_REL_SOFT);
                } else if (!info->enable_beacon) {
                        unsigned int count = 0;
                        ieee80211_iterate_active_interfaces_atomic(
                                data->hw, IEEE80211_IFACE_ITER_NORMAL,
                                mac80211_hwsim_bcn_en_iter, &count);
                        wiphy_dbg(hw->wiphy, "  beaconing vifs remaining: %u",
                                  count);
                        if (count == 0) {
                                hrtimer_cancel(&link_data->beacon_timer);
                                link_data->beacon_int = 0;
                        }
                }
        }

        if (changed & BSS_CHANGED_ERP_CTS_PROT) {
                wiphy_dbg(hw->wiphy, "  ERP_CTS_PROT: %d\n",
                          info->use_cts_prot);
        }

        if (changed & BSS_CHANGED_ERP_PREAMBLE) {
                wiphy_dbg(hw->wiphy, "  ERP_PREAMBLE: %d\n",
                          info->use_short_preamble);
        }

        if (changed & BSS_CHANGED_ERP_SLOT) {
                wiphy_dbg(hw->wiphy, "  ERP_SLOT: %d\n", info->use_short_slot);
        }

        if (changed & BSS_CHANGED_HT) {
                wiphy_dbg(hw->wiphy, "  HT: op_mode=0x%x\n",
                          info->ht_operation_mode);
        }

        if (changed & BSS_CHANGED_BASIC_RATES) {
                wiphy_dbg(hw->wiphy, "  BASIC_RATES: 0x%llx\n",
                          (unsigned long long) info->basic_rates);
        }

        if (changed & BSS_CHANGED_TXPOWER)
                wiphy_dbg(hw->wiphy, "  TX Power: %d dBm\n", info->txpower);
}

static void
mac80211_hwsim_sta_rc_update(struct ieee80211_hw *hw,
                             struct ieee80211_vif *vif,
                             struct ieee80211_link_sta *link_sta,
                             u32 changed)
{
        struct mac80211_hwsim_data *data = hw->priv;
        struct ieee80211_sta *sta = link_sta->sta;
        u32 bw = U32_MAX;
        int link_id;

        rcu_read_lock();
        for (link_id = 0;
             link_id < ARRAY_SIZE(vif->link_conf);
             link_id++) {
                enum nl80211_chan_width confbw = NL80211_CHAN_WIDTH_20_NOHT;
                struct ieee80211_bss_conf *vif_conf;

                link_sta = rcu_dereference(sta->link[link_id]);

                if (!link_sta)
                        continue;

                switch (link_sta->bandwidth) {
#define C(_bw) case IEEE80211_STA_RX_BW_##_bw: bw = _bw; break
                C(20);
                C(40);
                C(80);
                C(160);
                C(320);
#undef C
                }

                if (!data->use_chanctx) {
                        confbw = data->bw;
                } else {
                        struct ieee80211_chanctx_conf *chanctx_conf;

                        vif_conf = rcu_dereference(vif->link_conf[link_id]);
                        if (WARN_ON(!vif_conf))
                                continue;

                        chanctx_conf = rcu_dereference(vif_conf->chanctx_conf);

                        if (!WARN_ON(!chanctx_conf))
                                confbw = chanctx_conf->def.width;
                }

                WARN(bw > hwsim_get_chanwidth(confbw),
                     "intf %pM [link=%d]: bad STA %pM bandwidth %d MHz (%d) > channel config %d MHz (%d)\n",
                     vif->addr, link_id, sta->addr, bw, sta->deflink.bandwidth,
                     hwsim_get_chanwidth(data->bw), data->bw);


        }
        rcu_read_unlock();


}

static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
                                  struct ieee80211_vif *vif,
                                  struct ieee80211_sta *sta)
{
        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;

        hwsim_check_magic(vif);
        hwsim_set_sta_magic(sta);
        mac80211_hwsim_sta_rc_update(hw, vif, &sta->deflink, 0);

        if (sta->valid_links) {
                WARN(hweight16(sta->valid_links) > 1,
                     "expect to add STA with single link, have 0x%x\n",
                     sta->valid_links);
                sp->active_links_rx = sta->valid_links;
        }

        return 0;
}

static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
                                     struct ieee80211_vif *vif,
                                     struct ieee80211_sta *sta)
{
        hwsim_check_magic(vif);
        hwsim_clear_sta_magic(sta);

        return 0;
}

static int mac80211_hwsim_sta_state(struct ieee80211_hw *hw,
                                    struct ieee80211_vif *vif,
                                    struct ieee80211_sta *sta,
                                    enum ieee80211_sta_state old_state,
                                    enum ieee80211_sta_state new_state)
{
        if (new_state == IEEE80211_STA_NOTEXIST)
                return mac80211_hwsim_sta_remove(hw, vif, sta);

        if (old_state == IEEE80211_STA_NOTEXIST)
                return mac80211_hwsim_sta_add(hw, vif, sta);

        /*
         * in an MLO connection, when client is authorized
         * (AP station marked as such), enable all links
         */
        if (ieee80211_vif_is_mld(vif) &&
            vif->type == NL80211_IFTYPE_STATION &&
            new_state == IEEE80211_STA_AUTHORIZED && !sta->tdls)
                ieee80211_set_active_links_async(vif,
                                                 ieee80211_vif_usable_links(vif));

        return 0;
}

static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
                                      struct ieee80211_vif *vif,
                                      enum sta_notify_cmd cmd,
                                      struct ieee80211_sta *sta)
{
        hwsim_check_magic(vif);

        switch (cmd) {
        case STA_NOTIFY_SLEEP:
        case STA_NOTIFY_AWAKE:
                /* TODO: make good use of these flags */
                break;
        default:
                WARN(1, "Invalid sta notify: %d\n", cmd);
                break;
        }
}

static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
                                  struct ieee80211_sta *sta,
                                  bool set)
{
        hwsim_check_sta_magic(sta);
        return 0;
}

static int mac80211_hwsim_conf_tx(struct ieee80211_hw *hw,
                                  struct ieee80211_vif *vif,
                                  unsigned int link_id, u16 queue,
                                  const struct ieee80211_tx_queue_params *params)
{
        wiphy_dbg(hw->wiphy,
                  "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
                  __func__, queue,
                  params->txop, params->cw_min,
                  params->cw_max, params->aifs);
        return 0;
}

static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
                                     struct survey_info *survey)
{
        struct mac80211_hwsim_data *hwsim = hw->priv;

        if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
                return -ENOENT;

        mutex_lock(&hwsim->mutex);
        survey->channel = hwsim->survey_data[idx].channel;
        if (!survey->channel) {
                mutex_unlock(&hwsim->mutex);
                return -ENOENT;
        }

        /*
         * Magically conjured dummy values --- this is only ok for simulated hardware.
         *
         * A real driver which cannot determine real values noise MUST NOT
         * report any, especially not a magically conjured ones :-)
         */
        survey->filled = SURVEY_INFO_NOISE_DBM |
                         SURVEY_INFO_TIME |
                         SURVEY_INFO_TIME_BUSY;
        survey->noise = -92;
        survey->time =
                jiffies_to_msecs(hwsim->survey_data[idx].end -
                                 hwsim->survey_data[idx].start);
        /* report 12.5% of channel time is used */
        survey->time_busy = survey->time/8;
        mutex_unlock(&hwsim->mutex);

        return 0;
}

static enum ieee80211_neg_ttlm_res
mac80211_hwsim_can_neg_ttlm(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
                            struct ieee80211_neg_ttlm *neg_ttlm)
{
        u32 i;

        /* For testing purposes, accept if all TIDs are mapped to the same links
         * set, otherwise reject.
         */
        for (i = 0; i < IEEE80211_TTLM_NUM_TIDS; i++) {
                if (neg_ttlm->downlink[i] != neg_ttlm->uplink[i] ||
                    neg_ttlm->downlink[i] != neg_ttlm->downlink[0])
                        return NEG_TTLM_RES_REJECT;
        }

        return NEG_TTLM_RES_ACCEPT;
}

#ifdef CONFIG_NL80211_TESTMODE
/*
 * This section contains example code for using netlink
 * attributes with the testmode command in nl80211.
 */

/* These enums need to be kept in sync with userspace */
enum hwsim_testmode_attr {
        __HWSIM_TM_ATTR_INVALID = 0,
        HWSIM_TM_ATTR_CMD       = 1,
        HWSIM_TM_ATTR_PS        = 2,

        /* keep last */
        __HWSIM_TM_ATTR_AFTER_LAST,
        HWSIM_TM_ATTR_MAX       = __HWSIM_TM_ATTR_AFTER_LAST - 1
};

enum hwsim_testmode_cmd {
        HWSIM_TM_CMD_SET_PS             = 0,
        HWSIM_TM_CMD_GET_PS             = 1,
        HWSIM_TM_CMD_STOP_QUEUES        = 2,
        HWSIM_TM_CMD_WAKE_QUEUES        = 3,
};

static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
        [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
        [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
};

static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
                                       struct ieee80211_vif *vif,
                                       void *data, int len)
{
        struct mac80211_hwsim_data *hwsim = hw->priv;
        struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
        struct sk_buff *skb;
        int err, ps;

        err = nla_parse_deprecated(tb, HWSIM_TM_ATTR_MAX, data, len,
                                   hwsim_testmode_policy, NULL);
        if (err)
                return err;

        if (!tb[HWSIM_TM_ATTR_CMD])
                return -EINVAL;

        switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
        case HWSIM_TM_CMD_SET_PS:
                if (!tb[HWSIM_TM_ATTR_PS])
                        return -EINVAL;
                ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
                return hwsim_fops_ps_write(hwsim, ps);
        case HWSIM_TM_CMD_GET_PS:
                skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
                                                nla_total_size(sizeof(u32)));
                if (!skb)
                        return -ENOMEM;
                if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
                        goto nla_put_failure;
                return cfg80211_testmode_reply(skb);
        case HWSIM_TM_CMD_STOP_QUEUES:
                ieee80211_stop_queues(hw);
                return 0;
        case HWSIM_TM_CMD_WAKE_QUEUES:
                ieee80211_wake_queues(hw);
                return 0;
        default:
                return -EOPNOTSUPP;
        }

 nla_put_failure:
        kfree_skb(skb);
        return -ENOBUFS;
}
#endif

static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
                                       struct ieee80211_vif *vif,
                                       struct ieee80211_ampdu_params *params)
{
        struct ieee80211_sta *sta = params->sta;
        enum ieee80211_ampdu_mlme_action action = params->action;
        u16 tid = params->tid;

        switch (action) {
        case IEEE80211_AMPDU_TX_START:
                return IEEE80211_AMPDU_TX_START_IMMEDIATE;
        case IEEE80211_AMPDU_TX_STOP_CONT:
        case IEEE80211_AMPDU_TX_STOP_FLUSH:
        case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
                ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
                break;
        case IEEE80211_AMPDU_TX_OPERATIONAL:
                break;
        case IEEE80211_AMPDU_RX_START:
        case IEEE80211_AMPDU_RX_STOP:
                break;
        default:
                return -EOPNOTSUPP;
        }

        return 0;
}

static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
                                 struct ieee80211_vif *vif,
                                 u32 queues, bool drop)
{
        /* Not implemented, queues only on kernel side */
}

static void hw_scan_work(struct work_struct *work)
{
        struct mac80211_hwsim_data *hwsim =
                container_of(work, struct mac80211_hwsim_data, hw_scan.work);
        struct cfg80211_scan_request *req = hwsim->hw_scan_request;
        int dwell, i;

        mutex_lock(&hwsim->mutex);
        if (hwsim->scan_chan_idx >= req->n_channels) {
                struct cfg80211_scan_info info = {
                        .aborted = false,
                };

                wiphy_dbg(hwsim->hw->wiphy, "hw scan complete\n");
                ieee80211_scan_completed(hwsim->hw, &info);
                hwsim->hw_scan_request = NULL;
                hwsim->hw_scan_vif = NULL;
                hwsim->tmp_chan = NULL;
                mutex_unlock(&hwsim->mutex);
                mac80211_hwsim_config_mac_nl(hwsim->hw, hwsim->scan_addr,
                                             false);
                return;
        }

        wiphy_dbg(hwsim->hw->wiphy, "hw scan %d MHz\n",
                  req->channels[hwsim->scan_chan_idx]->center_freq);

        hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
        if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
                                      IEEE80211_CHAN_RADAR) ||
            !req->n_ssids) {
                dwell = 120;
        } else {
                dwell = 30;
                /* send probes */
                for (i = 0; i < req->n_ssids; i++) {
                        struct sk_buff *probe;
                        struct ieee80211_mgmt *mgmt;

                        probe = ieee80211_probereq_get(hwsim->hw,
                                                       hwsim->scan_addr,
                                                       req->ssids[i].ssid,
                                                       req->ssids[i].ssid_len,
                                                       req->ie_len);
                        if (!probe)
                                continue;

                        mgmt = (struct ieee80211_mgmt *) probe->data;
                        memcpy(mgmt->da, req->bssid, ETH_ALEN);
                        memcpy(mgmt->bssid, req->bssid, ETH_ALEN);

                        if (req->ie_len)
                                skb_put_data(probe, req->ie, req->ie_len);

                        rcu_read_lock();
                        if (!ieee80211_tx_prepare_skb(hwsim->hw,
                                                      hwsim->hw_scan_vif,
                                                      probe,
                                                      hwsim->tmp_chan->band,
                                                      NULL)) {
                                rcu_read_unlock();
                                continue;
                        }

                        local_bh_disable();
                        mac80211_hwsim_tx_frame(hwsim->hw, probe,
                                                hwsim->tmp_chan);
                        rcu_read_unlock();
                        local_bh_enable();
                }
        }
        ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
                                     msecs_to_jiffies(dwell));
        hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
        hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
        hwsim->survey_data[hwsim->scan_chan_idx].end =
                jiffies + msecs_to_jiffies(dwell);
        hwsim->scan_chan_idx++;
        mutex_unlock(&hwsim->mutex);
}

static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
                                  struct ieee80211_vif *vif,
                                  struct ieee80211_scan_request *hw_req)
{
        struct mac80211_hwsim_data *hwsim = hw->priv;
        struct cfg80211_scan_request *req = &hw_req->req;

        mutex_lock(&hwsim->mutex);
        if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
                mutex_unlock(&hwsim->mutex);
                return -EBUSY;
        }
        hwsim->hw_scan_request = req;
        hwsim->hw_scan_vif = vif;
        hwsim->scan_chan_idx = 0;
        if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
                get_random_mask_addr(hwsim->scan_addr,
                                     hw_req->req.mac_addr,
                                     hw_req->req.mac_addr_mask);
        else
                memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
        memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
        mutex_unlock(&hwsim->mutex);

        mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, true);
        wiphy_dbg(hw->wiphy, "hwsim hw_scan request\n");

        ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);

        return 0;
}

static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
                                          struct ieee80211_vif *vif)
{
        struct mac80211_hwsim_data *hwsim = hw->priv;
        struct cfg80211_scan_info info = {
                .aborted = true,
        };

        wiphy_dbg(hw->wiphy, "hwsim cancel_hw_scan\n");

        cancel_delayed_work_sync(&hwsim->hw_scan);

        mutex_lock(&hwsim->mutex);
        ieee80211_scan_completed(hwsim->hw, &info);
        hwsim->tmp_chan = NULL;
        hwsim->hw_scan_request = NULL;
        hwsim->hw_scan_vif = NULL;
        mutex_unlock(&hwsim->mutex);
}

static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
                                   struct ieee80211_vif *vif,
                                   const u8 *mac_addr)
{
        struct mac80211_hwsim_data *hwsim = hw->priv;

        mutex_lock(&hwsim->mutex);

        if (hwsim->scanning) {
                pr_debug("two hwsim sw_scans detected!\n");
                goto out;
        }

        pr_debug("hwsim sw_scan request, prepping stuff\n");

        memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
        mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, true);
        hwsim->scanning = true;
        memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));

out:
        mutex_unlock(&hwsim->mutex);
}

static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
                                            struct ieee80211_vif *vif)
{
        struct mac80211_hwsim_data *hwsim = hw->priv;

        mutex_lock(&hwsim->mutex);

        pr_debug("hwsim sw_scan_complete\n");
        hwsim->scanning = false;
        mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, false);
        eth_zero_addr(hwsim->scan_addr);

        mutex_unlock(&hwsim->mutex);
}

static void hw_roc_start(struct work_struct *work)
{
        struct mac80211_hwsim_data *hwsim =
                container_of(work, struct mac80211_hwsim_data, roc_start.work);

        mutex_lock(&hwsim->mutex);

        wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC begins\n");
        hwsim->tmp_chan = hwsim->roc_chan;
        ieee80211_ready_on_channel(hwsim->hw);

        ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
                                     msecs_to_jiffies(hwsim->roc_duration));

        mutex_unlock(&hwsim->mutex);
}

static void hw_roc_done(struct work_struct *work)
{
        struct mac80211_hwsim_data *hwsim =
                container_of(work, struct mac80211_hwsim_data, roc_done.work);

        mutex_lock(&hwsim->mutex);
        ieee80211_remain_on_channel_expired(hwsim->hw);
        hwsim->tmp_chan = NULL;
        mutex_unlock(&hwsim->mutex);

        wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC expired\n");
}

static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
                              struct ieee80211_vif *vif,
                              struct ieee80211_channel *chan,
                              int duration,
                              enum ieee80211_roc_type type)
{
        struct mac80211_hwsim_data *hwsim = hw->priv;

        mutex_lock(&hwsim->mutex);
        if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
                mutex_unlock(&hwsim->mutex);
                return -EBUSY;
        }

        hwsim->roc_chan = chan;
        hwsim->roc_duration = duration;
        mutex_unlock(&hwsim->mutex);

        wiphy_dbg(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
                  chan->center_freq, duration);
        ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);

        return 0;
}

static int mac80211_hwsim_croc(struct ieee80211_hw *hw,
                               struct ieee80211_vif *vif)
{
        struct mac80211_hwsim_data *hwsim = hw->priv;

        cancel_delayed_work_sync(&hwsim->roc_start);
        cancel_delayed_work_sync(&hwsim->roc_done);

        mutex_lock(&hwsim->mutex);
        hwsim->tmp_chan = NULL;
        mutex_unlock(&hwsim->mutex);

        wiphy_dbg(hw->wiphy, "hwsim ROC canceled\n");

        return 0;
}

static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
                                      struct ieee80211_chanctx_conf *ctx)
{
        hwsim_set_chanctx_magic(ctx);
        wiphy_dbg(hw->wiphy,
                  "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
                  ctx->def.chan->center_freq, ctx->def.width,
                  ctx->def.center_freq1, ctx->def.center_freq2);
        return 0;
}

static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
                                          struct ieee80211_chanctx_conf *ctx)
{
        wiphy_dbg(hw->wiphy,
                  "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
                  ctx->def.chan->center_freq, ctx->def.width,
                  ctx->def.center_freq1, ctx->def.center_freq2);
        hwsim_check_chanctx_magic(ctx);
        hwsim_clear_chanctx_magic(ctx);
}

static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
                                          struct ieee80211_chanctx_conf *ctx,
                                          u32 changed)
{
        hwsim_check_chanctx_magic(ctx);
        wiphy_dbg(hw->wiphy,
                  "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
                  ctx->def.chan->center_freq, ctx->def.width,
                  ctx->def.center_freq1, ctx->def.center_freq2);
}

static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
                                             struct ieee80211_vif *vif,
                                             struct ieee80211_bss_conf *link_conf,
                                             struct ieee80211_chanctx_conf *ctx)
{
        hwsim_check_magic(vif);
        hwsim_check_chanctx_magic(ctx);

        /* if we activate a link while already associated wake it up */
        if (vif->type == NL80211_IFTYPE_STATION && vif->cfg.assoc) {
                struct sk_buff *skb;

                skb = ieee80211_nullfunc_get(hw, vif, link_conf->link_id, true);
                if (skb) {
                        local_bh_disable();
                        mac80211_hwsim_tx_frame(hw, skb, ctx->def.chan);
                        local_bh_enable();
                }
        }

        return 0;
}

static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
                                                struct ieee80211_vif *vif,
                                                struct ieee80211_bss_conf *link_conf,
                                                struct ieee80211_chanctx_conf *ctx)
{
        hwsim_check_magic(vif);
        hwsim_check_chanctx_magic(ctx);

        /* if we deactivate a link while associated suspend it first */
        if (vif->type == NL80211_IFTYPE_STATION && vif->cfg.assoc) {
                struct sk_buff *skb;

                skb = ieee80211_nullfunc_get(hw, vif, link_conf->link_id, true);
                if (skb) {
                        struct ieee80211_hdr *hdr = (void *)skb->data;

                        hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);

                        local_bh_disable();
                        mac80211_hwsim_tx_frame(hw, skb, ctx->def.chan);
                        local_bh_enable();
                }
        }
}

static int mac80211_hwsim_switch_vif_chanctx(struct ieee80211_hw *hw,
                                             struct ieee80211_vif_chanctx_switch *vifs,
                                             int n_vifs,
                                             enum ieee80211_chanctx_switch_mode mode)
{
        int i;

        if (n_vifs <= 0)
                return -EINVAL;

        wiphy_dbg(hw->wiphy,
                  "switch vif channel context mode: %u\n", mode);

        for (i = 0; i < n_vifs; i++) {
                hwsim_check_chanctx_magic(vifs[i].old_ctx);
                wiphy_dbg(hw->wiphy,
                          "switch vif channel context: %d MHz/width: %d/cfreqs:%d/%d MHz -> %d MHz/width: %d/cfreqs:%d/%d MHz\n",
                          vifs[i].old_ctx->def.chan->center_freq,
                          vifs[i].old_ctx->def.width,
                          vifs[i].old_ctx->def.center_freq1,
                          vifs[i].old_ctx->def.center_freq2,
                          vifs[i].new_ctx->def.chan->center_freq,
                          vifs[i].new_ctx->def.width,
                          vifs[i].new_ctx->def.center_freq1,
                          vifs[i].new_ctx->def.center_freq2);

                switch (mode) {
                case CHANCTX_SWMODE_REASSIGN_VIF:
                        hwsim_check_chanctx_magic(vifs[i].new_ctx);
                        break;
                case CHANCTX_SWMODE_SWAP_CONTEXTS:
                        hwsim_set_chanctx_magic(vifs[i].new_ctx);
                        hwsim_clear_chanctx_magic(vifs[i].old_ctx);
                        break;
                default:
                        WARN(1, "Invalid mode %d\n", mode);
                }
        }
        return 0;
}

static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
        "tx_pkts_nic",
        "tx_bytes_nic",
        "rx_pkts_nic",
        "rx_bytes_nic",
        "d_tx_dropped",
        "d_tx_failed",
        "d_ps_mode",
        "d_group",
};

#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)

static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
                                          struct ieee80211_vif *vif,
                                          u32 sset, u8 *data)
{
        if (sset == ETH_SS_STATS)
                memcpy(data, mac80211_hwsim_gstrings_stats,
                       sizeof(mac80211_hwsim_gstrings_stats));
}

static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
                                            struct ieee80211_vif *vif, int sset)
{
        if (sset == ETH_SS_STATS)
                return MAC80211_HWSIM_SSTATS_LEN;
        return 0;
}

static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
                                        struct ieee80211_vif *vif,
                                        struct ethtool_stats *stats, u64 *data)
{
        struct mac80211_hwsim_data *ar = hw->priv;
        int i = 0;

        data[i++] = ar->tx_pkts;
        data[i++] = ar->tx_bytes;
        data[i++] = ar->rx_pkts;
        data[i++] = ar->rx_bytes;
        data[i++] = ar->tx_dropped;
        data[i++] = ar->tx_failed;
        data[i++] = ar->ps;
        data[i++] = ar->group;

        WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
}

static int mac80211_hwsim_tx_last_beacon(struct ieee80211_hw *hw)
{
        return 1;
}

static int mac80211_hwsim_set_rts_threshold(struct ieee80211_hw *hw,
                                            int radio_idx, u32 value)
{
        return -EOPNOTSUPP;
}

static int mac80211_hwsim_change_vif_links(struct ieee80211_hw *hw,
                                           struct ieee80211_vif *vif,
                                           u16 old_links, u16 new_links,
                                           struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS])
{
        unsigned long rem = old_links & ~new_links;
        unsigned long add = new_links & ~old_links;
        int i;

        if (!old_links)
                rem |= BIT(0);
        if (!new_links)
                add |= BIT(0);

        for_each_set_bit(i, &rem, IEEE80211_MLD_MAX_NUM_LINKS)
                mac80211_hwsim_config_mac_nl(hw, old[i]->addr, false);

        for_each_set_bit(i, &add, IEEE80211_MLD_MAX_NUM_LINKS) {
                struct ieee80211_bss_conf *link_conf;

                link_conf = link_conf_dereference_protected(vif, i);
                if (WARN_ON(!link_conf))
                        continue;

                mac80211_hwsim_config_mac_nl(hw, link_conf->addr, true);
        }

        return 0;
}

static int mac80211_hwsim_change_sta_links(struct ieee80211_hw *hw,
                                           struct ieee80211_vif *vif,
                                           struct ieee80211_sta *sta,
                                           u16 old_links, u16 new_links)
{
        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;

        hwsim_check_sta_magic(sta);

        if (vif->type == NL80211_IFTYPE_STATION)
                sp->active_links_rx = new_links;

        return 0;
}

static int mac80211_hwsim_send_pmsr_ftm_request_peer(struct sk_buff *msg,
                                                     struct cfg80211_pmsr_ftm_request_peer *request)
{
        struct nlattr *ftm;

        if (!request->requested)
                return -EINVAL;

        ftm = nla_nest_start(msg, NL80211_PMSR_TYPE_FTM);
        if (!ftm)
                return -ENOBUFS;

        if (nla_put_u32(msg, NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE, request->preamble))
                return -ENOBUFS;

        if (nla_put_u16(msg, NL80211_PMSR_FTM_REQ_ATTR_BURST_PERIOD, request->burst_period))
                return -ENOBUFS;

        if (request->asap && nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_ASAP))
                return -ENOBUFS;

        if (request->request_lci && nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_REQUEST_LCI))
                return -ENOBUFS;

        if (request->request_civicloc &&
            nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC))
                return -ENOBUFS;

        if (request->trigger_based && nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED))
                return -ENOBUFS;

        if (request->non_trigger_based &&
            nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED))
                return -ENOBUFS;

        if (request->lmr_feedback && nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK))
                return -ENOBUFS;

        if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP, request->num_bursts_exp))
                return -ENOBUFS;

        if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION, request->burst_duration))
                return -ENOBUFS;

        if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST, request->ftms_per_burst))
                return -ENOBUFS;

        if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_NUM_FTMR_RETRIES, request->ftmr_retries))
                return -ENOBUFS;

        if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION, request->burst_duration))
                return -ENOBUFS;

        if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_BSS_COLOR, request->bss_color))
                return -ENOBUFS;

        nla_nest_end(msg, ftm);

        return 0;
}

static int mac80211_hwsim_send_pmsr_request_peer(struct sk_buff *msg,
                                                 struct cfg80211_pmsr_request_peer *request)
{
        struct nlattr *peer, *chandef, *req, *data;
        int err;

        peer = nla_nest_start(msg, NL80211_PMSR_ATTR_PEERS);
        if (!peer)
                return -ENOBUFS;

        if (nla_put(msg, NL80211_PMSR_PEER_ATTR_ADDR, ETH_ALEN,
                    request->addr))
                return -ENOBUFS;

        chandef = nla_nest_start(msg, NL80211_PMSR_PEER_ATTR_CHAN);
        if (!chandef)
                return -ENOBUFS;

        err = nl80211_send_chandef(msg, &request->chandef);
        if (err)
                return err;

        nla_nest_end(msg, chandef);

        req = nla_nest_start(msg, NL80211_PMSR_PEER_ATTR_REQ);
        if (!req)
                return -ENOBUFS;

        if (request->report_ap_tsf && nla_put_flag(msg, NL80211_PMSR_REQ_ATTR_GET_AP_TSF))
                return -ENOBUFS;

        data = nla_nest_start(msg, NL80211_PMSR_REQ_ATTR_DATA);
        if (!data)
                return -ENOBUFS;

        err = mac80211_hwsim_send_pmsr_ftm_request_peer(msg, &request->ftm);
        if (err)
                return err;

        nla_nest_end(msg, data);
        nla_nest_end(msg, req);
        nla_nest_end(msg, peer);

        return 0;
}

static int mac80211_hwsim_send_pmsr_request(struct sk_buff *msg,
                                            struct cfg80211_pmsr_request *request)
{
        struct nlattr *pmsr;
        int err;

        pmsr = nla_nest_start(msg, NL80211_ATTR_PEER_MEASUREMENTS);
        if (!pmsr)
                return -ENOBUFS;

        if (nla_put_u32(msg, NL80211_ATTR_TIMEOUT, request->timeout))
                return -ENOBUFS;

        if (!is_zero_ether_addr(request->mac_addr)) {
                if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, request->mac_addr))
                        return -ENOBUFS;
                if (nla_put(msg, NL80211_ATTR_MAC_MASK, ETH_ALEN, request->mac_addr_mask))
                        return -ENOBUFS;
        }

        for (int i = 0; i < request->n_peers; i++) {
                err = mac80211_hwsim_send_pmsr_request_peer(msg, &request->peers[i]);
                if (err)
                        return err;
        }

        nla_nest_end(msg, pmsr);

        return 0;
}

static int mac80211_hwsim_start_pmsr(struct ieee80211_hw *hw,
                                     struct ieee80211_vif *vif,
                                     struct cfg80211_pmsr_request *request)
{
        struct mac80211_hwsim_data *data;
        struct sk_buff *skb = NULL;
        struct nlattr *pmsr;
        void *msg_head;
        u32 _portid;
        int err = 0;

        data = hw->priv;
        _portid = READ_ONCE(data->wmediumd);
        if (!_portid && !hwsim_virtio_enabled)
                return -EOPNOTSUPP;

        mutex_lock(&data->mutex);

        if (data->pmsr_request) {
                err = -EBUSY;
                goto out_free;
        }

        skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);

        if (!skb) {
                err = -ENOMEM;
                goto out_free;
        }

        msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, HWSIM_CMD_START_PMSR);

        if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
                    ETH_ALEN, data->addresses[1].addr)) {
                err = -ENOMEM;
                goto out_free;
        }

        pmsr = nla_nest_start(skb, HWSIM_ATTR_PMSR_REQUEST);
        if (!pmsr) {
                err = -ENOMEM;
                goto out_free;
        }

        err = mac80211_hwsim_send_pmsr_request(skb, request);
        if (err)
                goto out_free;

        nla_nest_end(skb, pmsr);

        genlmsg_end(skb, msg_head);
        if (hwsim_virtio_enabled)
                hwsim_tx_virtio(data, skb);
        else
                hwsim_unicast_netgroup(data, skb, _portid);

        data->pmsr_request = request;
        data->pmsr_request_wdev = ieee80211_vif_to_wdev(vif);

out_free:
        if (err && skb)
                nlmsg_free(skb);

        mutex_unlock(&data->mutex);
        return err;
}

static void mac80211_hwsim_abort_pmsr(struct ieee80211_hw *hw,
                                      struct ieee80211_vif *vif,
                                      struct cfg80211_pmsr_request *request)
{
        struct mac80211_hwsim_data *data;
        struct sk_buff *skb = NULL;
        struct nlattr *pmsr;
        void *msg_head;
        u32 _portid;
        int err = 0;

        data = hw->priv;
        _portid = READ_ONCE(data->wmediumd);
        if (!_portid && !hwsim_virtio_enabled)
                return;

        mutex_lock(&data->mutex);

        if (data->pmsr_request != request) {
                err = -EINVAL;
                goto out;
        }

        skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
        if (!skb) {
                err = -ENOMEM;
                goto out;
        }

        msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, HWSIM_CMD_ABORT_PMSR);

        if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER, ETH_ALEN, data->addresses[1].addr))
                goto out;

        pmsr = nla_nest_start(skb, HWSIM_ATTR_PMSR_REQUEST);
        if (!pmsr) {
                err = -ENOMEM;
                goto out;
        }

        err = mac80211_hwsim_send_pmsr_request(skb, request);
        if (err)
                goto out;

        err = nla_nest_end(skb, pmsr);
        if (err)
                goto out;

        genlmsg_end(skb, msg_head);
        if (hwsim_virtio_enabled)
                hwsim_tx_virtio(data, skb);
        else
                hwsim_unicast_netgroup(data, skb, _portid);

out:
        if (err && skb)
                nlmsg_free(skb);

        mutex_unlock(&data->mutex);
}

static int mac80211_hwsim_parse_rate_info(struct nlattr *rateattr,
                                          struct rate_info *rate_info,
                                          struct genl_info *info)
{
        struct nlattr *tb[HWSIM_RATE_INFO_ATTR_MAX + 1];
        int ret;

        ret = nla_parse_nested(tb, HWSIM_RATE_INFO_ATTR_MAX,
                               rateattr, hwsim_rate_info_policy, info->extack);
        if (ret)
                return ret;

        if (tb[HWSIM_RATE_INFO_ATTR_FLAGS])
                rate_info->flags = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_FLAGS]);

        if (tb[HWSIM_RATE_INFO_ATTR_MCS])
                rate_info->mcs = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_MCS]);

        if (tb[HWSIM_RATE_INFO_ATTR_LEGACY])
                rate_info->legacy = nla_get_u16(tb[HWSIM_RATE_INFO_ATTR_LEGACY]);

        if (tb[HWSIM_RATE_INFO_ATTR_NSS])
                rate_info->nss = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_NSS]);

        if (tb[HWSIM_RATE_INFO_ATTR_BW])
                rate_info->bw = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_BW]);

        if (tb[HWSIM_RATE_INFO_ATTR_HE_GI])
                rate_info->he_gi = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_HE_GI]);

        if (tb[HWSIM_RATE_INFO_ATTR_HE_DCM])
                rate_info->he_dcm = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_HE_DCM]);

        if (tb[HWSIM_RATE_INFO_ATTR_HE_RU_ALLOC])
                rate_info->he_ru_alloc =
                        nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_HE_RU_ALLOC]);

        if (tb[HWSIM_RATE_INFO_ATTR_N_BOUNDED_CH])
                rate_info->n_bonded_ch = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_N_BOUNDED_CH]);

        if (tb[HWSIM_RATE_INFO_ATTR_EHT_GI])
                rate_info->eht_gi = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_EHT_GI]);

        if (tb[HWSIM_RATE_INFO_ATTR_EHT_RU_ALLOC])
                rate_info->eht_ru_alloc = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_EHT_RU_ALLOC]);

        return 0;
}

static int mac80211_hwsim_parse_ftm_result(struct nlattr *ftm,
                                           struct cfg80211_pmsr_ftm_result *result,
                                           struct genl_info *info)
{
        struct nlattr *tb[NL80211_PMSR_FTM_RESP_ATTR_MAX + 1];
        int ret;

        ret = nla_parse_nested(tb, NL80211_PMSR_FTM_RESP_ATTR_MAX,
                               ftm, hwsim_ftm_result_policy, info->extack);
        if (ret)
                return ret;

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_FAIL_REASON])
                result->failure_reason = nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_FAIL_REASON]);

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_BURST_INDEX])
                result->burst_index = nla_get_u16(tb[NL80211_PMSR_FTM_RESP_ATTR_BURST_INDEX]);

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_ATTEMPTS]) {
                result->num_ftmr_attempts_valid = 1;
                result->num_ftmr_attempts =
                        nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_ATTEMPTS]);
        }

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_SUCCESSES]) {
                result->num_ftmr_successes_valid = 1;
                result->num_ftmr_successes =
                        nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_SUCCESSES]);
        }

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_BUSY_RETRY_TIME])
                result->busy_retry_time =
                        nla_get_u8(tb[NL80211_PMSR_FTM_RESP_ATTR_BUSY_RETRY_TIME]);

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_BURSTS_EXP])
                result->num_bursts_exp = nla_get_u8(tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_BURSTS_EXP]);

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_BURST_DURATION])
                result->burst_duration = nla_get_u8(tb[NL80211_PMSR_FTM_RESP_ATTR_BURST_DURATION]);

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_FTMS_PER_BURST])
                result->ftms_per_burst = nla_get_u8(tb[NL80211_PMSR_FTM_RESP_ATTR_FTMS_PER_BURST]);

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_RSSI_AVG]) {
                result->rssi_avg_valid = 1;
                result->rssi_avg = nla_get_s32(tb[NL80211_PMSR_FTM_RESP_ATTR_RSSI_AVG]);
        }
        if (tb[NL80211_PMSR_FTM_RESP_ATTR_RSSI_SPREAD]) {
                result->rssi_spread_valid = 1;
                result->rssi_spread =
                        nla_get_s32(tb[NL80211_PMSR_FTM_RESP_ATTR_RSSI_SPREAD]);
        }

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_TX_RATE]) {
                result->tx_rate_valid = 1;
                ret = mac80211_hwsim_parse_rate_info(tb[NL80211_PMSR_FTM_RESP_ATTR_TX_RATE],
                                                     &result->tx_rate, info);
                if (ret)
                        return ret;
        }

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_RX_RATE]) {
                result->rx_rate_valid = 1;
                ret = mac80211_hwsim_parse_rate_info(tb[NL80211_PMSR_FTM_RESP_ATTR_RX_RATE],
                                                     &result->rx_rate, info);
                if (ret)
                        return ret;
        }

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_AVG]) {
                result->rtt_avg_valid = 1;
                result->rtt_avg =
                        nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_AVG]);
        }
        if (tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_VARIANCE]) {
                result->rtt_variance_valid = 1;
                result->rtt_variance =
                        nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_VARIANCE]);
        }
        if (tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_SPREAD]) {
                result->rtt_spread_valid = 1;
                result->rtt_spread =
                        nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_SPREAD]);
        }
        if (tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_AVG]) {
                result->dist_avg_valid = 1;
                result->dist_avg =
                        nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_AVG]);
        }
        if (tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_VARIANCE]) {
                result->dist_variance_valid = 1;
                result->dist_variance =
                        nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_VARIANCE]);
        }
        if (tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_SPREAD]) {
                result->dist_spread_valid = 1;
                result->dist_spread =
                        nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_SPREAD]);
        }

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_LCI]) {
                result->lci = nla_data(tb[NL80211_PMSR_FTM_RESP_ATTR_LCI]);
                result->lci_len = nla_len(tb[NL80211_PMSR_FTM_RESP_ATTR_LCI]);
        }

        if (tb[NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC]) {
                result->civicloc = nla_data(tb[NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC]);
                result->civicloc_len = nla_len(tb[NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC]);
        }

        return 0;
}

static int mac80211_hwsim_parse_pmsr_resp(struct nlattr *resp,
                                          struct cfg80211_pmsr_result *result,
                                          struct genl_info *info)
{
        struct nlattr *tb[NL80211_PMSR_RESP_ATTR_MAX + 1];
        struct nlattr *pmsr;
        int rem;
        int ret;

        ret = nla_parse_nested(tb, NL80211_PMSR_RESP_ATTR_MAX, resp, hwsim_pmsr_resp_policy,
                               info->extack);
        if (ret)
                return ret;

        if (tb[NL80211_PMSR_RESP_ATTR_STATUS])
                result->status = nla_get_u32(tb[NL80211_PMSR_RESP_ATTR_STATUS]);

        if (tb[NL80211_PMSR_RESP_ATTR_HOST_TIME])
                result->host_time = nla_get_u64(tb[NL80211_PMSR_RESP_ATTR_HOST_TIME]);

        if (tb[NL80211_PMSR_RESP_ATTR_AP_TSF]) {
                result->ap_tsf_valid = 1;
                result->ap_tsf = nla_get_u64(tb[NL80211_PMSR_RESP_ATTR_AP_TSF]);
        }

        result->final = !!tb[NL80211_PMSR_RESP_ATTR_FINAL];

        if (!tb[NL80211_PMSR_RESP_ATTR_DATA])
                return 0;

        nla_for_each_nested(pmsr, tb[NL80211_PMSR_RESP_ATTR_DATA], rem) {
                switch (nla_type(pmsr)) {
                case NL80211_PMSR_TYPE_FTM:
                        result->type = NL80211_PMSR_TYPE_FTM;
                        ret = mac80211_hwsim_parse_ftm_result(pmsr, &result->ftm, info);
                        if (ret)
                                return ret;
                        break;
                default:
                        NL_SET_ERR_MSG_ATTR(info->extack, pmsr, "Unknown pmsr resp type");
                        return -EINVAL;
                }
        }

        return 0;
}

static int mac80211_hwsim_parse_pmsr_result(struct nlattr *peer,
                                            struct cfg80211_pmsr_result *result,
                                            struct genl_info *info)
{
        struct nlattr *tb[NL80211_PMSR_PEER_ATTR_MAX + 1];
        int ret;

        if (!peer)
                return -EINVAL;

        ret = nla_parse_nested(tb, NL80211_PMSR_PEER_ATTR_MAX, peer,
                               hwsim_pmsr_peer_result_policy, info->extack);
        if (ret)
                return ret;

        if (tb[NL80211_PMSR_PEER_ATTR_ADDR])
                memcpy(result->addr, nla_data(tb[NL80211_PMSR_PEER_ATTR_ADDR]),
                       ETH_ALEN);

        if (tb[NL80211_PMSR_PEER_ATTR_RESP]) {
                ret = mac80211_hwsim_parse_pmsr_resp(tb[NL80211_PMSR_PEER_ATTR_RESP], result, info);
                if (ret)
                        return ret;
        }

        return 0;
};

static int hwsim_pmsr_report_nl(struct sk_buff *msg, struct genl_info *info)
{
        struct mac80211_hwsim_data *data;
        struct nlattr *peers, *peer;
        struct nlattr *reqattr;
        const u8 *src;
        int err;
        int rem;

        if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER])
                return -EINVAL;

        src = nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
        data = get_hwsim_data_ref_from_addr(src);
        if (!data)
                return -EINVAL;

        mutex_lock(&data->mutex);
        if (!data->pmsr_request) {
                err = -EINVAL;
                goto out;
        }

        reqattr = info->attrs[HWSIM_ATTR_PMSR_RESULT];
        if (!reqattr) {
                err = -EINVAL;
                goto out;
        }

        peers = nla_find_nested(reqattr, NL80211_PMSR_ATTR_PEERS);
        if (!peers) {
                err = -EINVAL;
                goto out;
        }

        nla_for_each_nested(peer, peers, rem) {
                struct cfg80211_pmsr_result result = {};

                err = mac80211_hwsim_parse_pmsr_result(peer, &result, info);
                if (err)
                        goto out;

                cfg80211_pmsr_report(data->pmsr_request_wdev,
                                     data->pmsr_request, &result, GFP_KERNEL);
        }

        cfg80211_pmsr_complete(data->pmsr_request_wdev, data->pmsr_request, GFP_KERNEL);

        err = 0;
out:
        data->pmsr_request = NULL;
        data->pmsr_request_wdev = NULL;

        mutex_unlock(&data->mutex);
        return err;
}

static enum hrtimer_restart
mac80211_hwsim_nan_dw_start(struct hrtimer *timer)
{
        struct mac80211_hwsim_data *data =
                container_of(timer, struct mac80211_hwsim_data,
                             nan_timer);
        struct ieee80211_hw *hw = data->hw;
        u64 orig_tsf = mac80211_hwsim_get_tsf(hw, NULL), tsf = orig_tsf;
        u32 dw_int = 512 * 1024;
        u64 until_dw;

        if (!data->nan_device_vif)
                return HRTIMER_NORESTART;

        if (data->nan_bands & BIT(NL80211_BAND_5GHZ)) {
                if (data->nan_curr_dw_band == NL80211_BAND_2GHZ) {
                        dw_int = 128 * 1024;
                        data->nan_curr_dw_band = NL80211_BAND_5GHZ;
                } else if (data->nan_curr_dw_band == NL80211_BAND_5GHZ) {
                        data->nan_curr_dw_band = NL80211_BAND_2GHZ;
                }
        }

        until_dw = dw_int - do_div(tsf, dw_int);

        /* The timer might fire just before the actual DW, in which case
         * update the timeout to the actual next DW
         */
        if (until_dw < dw_int / 2)
                until_dw += dw_int;

        /* The above do_div() call directly modifies the 'tsf' variable, thus,
         * use a copy so that the print below would show the original TSF.
         */
        wiphy_debug(hw->wiphy,
                    "%s: tsf=%llx, curr_dw_band=%u, next_dw=%llu\n",
                    __func__, orig_tsf, data->nan_curr_dw_band,
                    until_dw);

        hrtimer_forward_now(&data->nan_timer,
                            ns_to_ktime(until_dw * NSEC_PER_USEC));

        if (data->notify_dw) {
                struct ieee80211_channel *ch;
                struct wireless_dev *wdev =
                        ieee80211_vif_to_wdev(data->nan_device_vif);

                if (data->nan_curr_dw_band == NL80211_BAND_5GHZ)
                        ch = ieee80211_get_channel(hw->wiphy, 5745);
                else
                        ch = ieee80211_get_channel(hw->wiphy, 2437);

                cfg80211_next_nan_dw_notif(wdev, ch, GFP_ATOMIC);
        }

        return HRTIMER_RESTART;
}

static int mac80211_hwsim_start_nan(struct ieee80211_hw *hw,
                                    struct ieee80211_vif *vif,
                                    struct cfg80211_nan_conf *conf)
{
        struct mac80211_hwsim_data *data = hw->priv;
        u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
        u32 dw_int = 512 * 1000;
        u64 until_dw = dw_int - do_div(tsf, dw_int);
        struct wireless_dev *wdev = ieee80211_vif_to_wdev(vif);

        if (vif->type != NL80211_IFTYPE_NAN)
                return -EINVAL;

        if (data->nan_device_vif)
                return -EALREADY;

        /* set this before starting the timer, as preemption might occur */
        data->nan_device_vif = vif;
        data->nan_bands = conf->bands;
        data->nan_curr_dw_band = NL80211_BAND_2GHZ;

        wiphy_debug(hw->wiphy, "nan_started, next_dw=%llu\n",
                    until_dw);

        hrtimer_start(&data->nan_timer,
                      ns_to_ktime(until_dw * NSEC_PER_USEC),
                      HRTIMER_MODE_REL_SOFT);

        if (conf->cluster_id && !is_zero_ether_addr(conf->cluster_id) &&
            is_zero_ether_addr(hwsim_nan_cluster_id)) {
                memcpy(hwsim_nan_cluster_id, conf->cluster_id, ETH_ALEN);
        } else if (is_zero_ether_addr(hwsim_nan_cluster_id)) {
                hwsim_nan_cluster_id[0] = 0x50;
                hwsim_nan_cluster_id[1] = 0x6f;
                hwsim_nan_cluster_id[2] = 0x9a;
                hwsim_nan_cluster_id[3] = 0x01;
                hwsim_nan_cluster_id[4] = get_random_u8();
                hwsim_nan_cluster_id[5] = get_random_u8();
        }

        data->notify_dw = conf->enable_dw_notification;

        cfg80211_nan_cluster_joined(wdev, hwsim_nan_cluster_id, true,
                                    GFP_KERNEL);

        return 0;
}

static int mac80211_hwsim_stop_nan(struct ieee80211_hw *hw,
                                   struct ieee80211_vif *vif)
{
        struct mac80211_hwsim_data *data = hw->priv;
        struct mac80211_hwsim_data *data2;
        bool nan_cluster_running = false;

        if (vif->type != NL80211_IFTYPE_NAN || !data->nan_device_vif ||
            data->nan_device_vif != vif)
                return -EINVAL;

        hrtimer_cancel(&data->nan_timer);
        data->nan_device_vif = NULL;

        spin_lock_bh(&hwsim_radio_lock);
        list_for_each_entry(data2, &hwsim_radios, list) {
                if (data2->nan_device_vif) {
                        nan_cluster_running = true;
                        break;
                }
        }
        spin_unlock_bh(&hwsim_radio_lock);

        if (!nan_cluster_running)
                memset(hwsim_nan_cluster_id, 0, ETH_ALEN);

        return 0;
}

static int mac80211_hwsim_change_nan_config(struct ieee80211_hw *hw,
                                            struct ieee80211_vif *vif,
                                            struct cfg80211_nan_conf *conf,
                                            u32 changes)
{
        struct mac80211_hwsim_data *data = hw->priv;

        if (vif->type != NL80211_IFTYPE_NAN)
                return -EINVAL;

        if (!data->nan_device_vif)
                return -EINVAL;

        wiphy_debug(hw->wiphy, "nan_config_changed: changes=0x%x\n", changes);

        /* Handle only the changes we care about for simulation purposes */
        if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) {
                data->nan_bands = conf->bands;
                data->nan_curr_dw_band = NL80211_BAND_2GHZ;
        }

        if (changes & CFG80211_NAN_CONF_CHANGED_CONFIG)
                data->notify_dw = conf->enable_dw_notification;

        return 0;
}

#ifdef CONFIG_MAC80211_DEBUGFS
#define HWSIM_DEBUGFS_OPS                                       \
        .link_add_debugfs = mac80211_hwsim_link_add_debugfs,
#else
#define HWSIM_DEBUGFS_OPS
#endif

#define HWSIM_COMMON_OPS                                        \
        .tx = mac80211_hwsim_tx,                                \
        .wake_tx_queue = ieee80211_handle_wake_tx_queue,        \
        .start = mac80211_hwsim_start,                          \
        .stop = mac80211_hwsim_stop,                            \
        .add_interface = mac80211_hwsim_add_interface,          \
        .change_interface = mac80211_hwsim_change_interface,    \
        .remove_interface = mac80211_hwsim_remove_interface,    \
        .config = mac80211_hwsim_config,                        \
        .configure_filter = mac80211_hwsim_configure_filter,    \
        .vif_cfg_changed = mac80211_hwsim_vif_info_changed,     \
        .link_info_changed = mac80211_hwsim_link_info_changed,  \
        .tx_last_beacon = mac80211_hwsim_tx_last_beacon,        \
        .sta_notify = mac80211_hwsim_sta_notify,                \
        .link_sta_rc_update = mac80211_hwsim_sta_rc_update,     \
        .conf_tx = mac80211_hwsim_conf_tx,                      \
        .get_survey = mac80211_hwsim_get_survey,                \
        CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)      \
        .ampdu_action = mac80211_hwsim_ampdu_action,            \
        .flush = mac80211_hwsim_flush,                          \
        .get_et_sset_count = mac80211_hwsim_get_et_sset_count,  \
        .get_et_stats = mac80211_hwsim_get_et_stats,            \
        .get_et_strings = mac80211_hwsim_get_et_strings,        \
        .start_pmsr = mac80211_hwsim_start_pmsr,                \
        .abort_pmsr = mac80211_hwsim_abort_pmsr,                \
        .start_nan = mac80211_hwsim_start_nan,                  \
        .stop_nan = mac80211_hwsim_stop_nan,                    \
        .nan_change_conf = mac80211_hwsim_change_nan_config,    \
        HWSIM_DEBUGFS_OPS

#define HWSIM_NON_MLO_OPS                                       \
        .sta_add = mac80211_hwsim_sta_add,                      \
        .sta_remove = mac80211_hwsim_sta_remove,                \
        .set_tim = mac80211_hwsim_set_tim,                      \
        .get_tsf = mac80211_hwsim_get_tsf,                      \
        .set_tsf = mac80211_hwsim_set_tsf,

static const struct ieee80211_ops mac80211_hwsim_ops = {
        HWSIM_COMMON_OPS
        HWSIM_NON_MLO_OPS
        .sw_scan_start = mac80211_hwsim_sw_scan,
        .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
        .add_chanctx = ieee80211_emulate_add_chanctx,
        .remove_chanctx = ieee80211_emulate_remove_chanctx,
        .change_chanctx = ieee80211_emulate_change_chanctx,
        .switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
};

#define HWSIM_CHANCTX_OPS                                       \
        .hw_scan = mac80211_hwsim_hw_scan,                      \
        .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,        \
        .remain_on_channel = mac80211_hwsim_roc,                \
        .cancel_remain_on_channel = mac80211_hwsim_croc,        \
        .add_chanctx = mac80211_hwsim_add_chanctx,              \
        .remove_chanctx = mac80211_hwsim_remove_chanctx,        \
        .change_chanctx = mac80211_hwsim_change_chanctx,        \
        .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,\
        .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx, \
        .switch_vif_chanctx = mac80211_hwsim_switch_vif_chanctx,

static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
        HWSIM_COMMON_OPS
        HWSIM_NON_MLO_OPS
        HWSIM_CHANCTX_OPS
};

static const struct ieee80211_ops mac80211_hwsim_mlo_ops = {
        HWSIM_COMMON_OPS
        HWSIM_CHANCTX_OPS
        .set_rts_threshold = mac80211_hwsim_set_rts_threshold,
        .change_vif_links = mac80211_hwsim_change_vif_links,
        .change_sta_links = mac80211_hwsim_change_sta_links,
        .sta_state = mac80211_hwsim_sta_state,
        .can_neg_ttlm = mac80211_hwsim_can_neg_ttlm,
};

struct hwsim_new_radio_params {
        unsigned int channels;
        const char *reg_alpha2;
        const struct ieee80211_regdomain *regd;
        bool reg_strict;
        bool p2p_device;
        bool use_chanctx;
        bool multi_radio;
        bool destroy_on_close;
        const char *hwname;
        bool no_vif;
        const u8 *perm_addr;
        u32 iftypes;
        u32 *ciphers;
        u8 n_ciphers;
        bool mlo;
        const struct cfg80211_pmsr_capabilities *pmsr_capa;
        bool nan_device;
};

static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
                                   struct genl_info *info)
{
        if (info)
                genl_notify(&hwsim_genl_family, mcast_skb, info,
                            HWSIM_MCGRP_CONFIG, GFP_KERNEL);
        else
                genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
                                  HWSIM_MCGRP_CONFIG, GFP_KERNEL);
}

static int append_radio_msg(struct sk_buff *skb, int id,
                            struct hwsim_new_radio_params *param)
{
        int ret;

        ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
        if (ret < 0)
                return ret;

        if (param->channels) {
                ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
                if (ret < 0)
                        return ret;
        }

        if (param->reg_alpha2) {
                ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
                              param->reg_alpha2);
                if (ret < 0)
                        return ret;
        }

        if (param->regd) {
                int i;

                for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
                        if (hwsim_world_regdom_custom[i] != param->regd)
                                continue;

                        ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
                        if (ret < 0)
                                return ret;
                        break;
                }
        }

        if (param->reg_strict) {
                ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
                if (ret < 0)
                        return ret;
        }

        if (param->p2p_device) {
                ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
                if (ret < 0)
                        return ret;
        }

        if (param->use_chanctx) {
                ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
                if (ret < 0)
                        return ret;
        }

        if (param->multi_radio) {
                ret = nla_put_flag(skb, HWSIM_ATTR_MULTI_RADIO);
                if (ret < 0)
                        return ret;
        }

        if (param->hwname) {
                ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
                              strlen(param->hwname), param->hwname);
                if (ret < 0)
                        return ret;
        }

        if (param->nan_device) {
                ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_NAN_DEVICE);
                if (ret < 0)
                        return ret;
        }
        return 0;
}

static void hwsim_mcast_new_radio(int id, struct genl_info *info,
                                  struct hwsim_new_radio_params *param)
{
        struct sk_buff *mcast_skb;
        void *data;

        mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
        if (!mcast_skb)
                return;

        data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
                           HWSIM_CMD_NEW_RADIO);
        if (!data)
                goto out_err;

        if (append_radio_msg(mcast_skb, id, param) < 0)
                goto out_err;

        genlmsg_end(mcast_skb, data);

        hwsim_mcast_config_msg(mcast_skb, info);
        return;

out_err:
        nlmsg_free(mcast_skb);
}

static const struct ieee80211_sband_iftype_data sband_capa_2ghz[] = {
        {
                .types_mask = BIT(NL80211_IFTYPE_STATION) |
                              BIT(NL80211_IFTYPE_P2P_CLIENT),
                .he_cap = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
                                .mac_cap_info[2] =
                                        IEEE80211_HE_MAC_CAP2_BSR |
                                        IEEE80211_HE_MAC_CAP2_MU_CASCADING |
                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
                                .mac_cap_info[3] =
                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
                                .phy_cap_info[0] =
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G,
                                .phy_cap_info[1] =
                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
                                .phy_cap_info[2] =
                                        IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
                                        IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,

                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        .he_mcs_nss_supp = {
                                .rx_mcs_80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80 = cpu_to_le16(0xfffa),
                                .rx_mcs_160 = cpu_to_le16(0xffff),
                                .tx_mcs_160 = cpu_to_le16(0xffff),
                                .rx_mcs_80p80 = cpu_to_le16(0xffff),
                                .tx_mcs_80p80 = cpu_to_le16(0xffff),
                        },
                },
                .eht_cap = {
                        .has_eht = true,
                        .eht_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
                                        IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
                                        IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
                                .phy_cap_info[0] =
                                        IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
                                        IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
                                        IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE,
                                .phy_cap_info[3] =
                                        IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
                                .phy_cap_info[4] =
                                        IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
                                        IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
                                .phy_cap_info[5] =
                                        IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
                                        IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
                                        IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
                                .phy_cap_info[6] =
                                        IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
                                        IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
                                .phy_cap_info[7] =
                                        IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW,
                        },

                        /* For all MCS and bandwidth, set 8 NSS for both Tx and
                         * Rx
                         */
                        .eht_mcs_nss_supp = {
                                /*
                                 * Since B0, B1, B2 and B3 are not set in
                                 * the supported channel width set field in the
                                 * HE PHY capabilities information field the
                                 * device is a 20MHz only device on 2.4GHz band.
                                 */
                                .only_20mhz = {
                                        .rx_tx_mcs7_max_nss = 0x88,
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                        },
                        /* PPE threshold information is not supported */
                },
        },
        {
                .types_mask = BIT(NL80211_IFTYPE_AP) |
                              BIT(NL80211_IFTYPE_P2P_GO),
                .he_cap = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
                                .mac_cap_info[2] =
                                        IEEE80211_HE_MAC_CAP2_BSR |
                                        IEEE80211_HE_MAC_CAP2_MU_CASCADING |
                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
                                .mac_cap_info[3] =
                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
                                .phy_cap_info[0] =
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G,
                                .phy_cap_info[1] =
                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
                                .phy_cap_info[2] =
                                        IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
                                        IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,

                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        .he_mcs_nss_supp = {
                                .rx_mcs_80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80 = cpu_to_le16(0xfffa),
                                .rx_mcs_160 = cpu_to_le16(0xffff),
                                .tx_mcs_160 = cpu_to_le16(0xffff),
                                .rx_mcs_80p80 = cpu_to_le16(0xffff),
                                .tx_mcs_80p80 = cpu_to_le16(0xffff),
                        },
                },
                .eht_cap = {
                        .has_eht = true,
                        .eht_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
                                        IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
                                        IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
                                .phy_cap_info[0] =
                                        IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
                                        IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
                                        IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE,
                                .phy_cap_info[3] =
                                        IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
                                .phy_cap_info[4] =
                                        IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
                                        IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
                                .phy_cap_info[5] =
                                        IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
                                        IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
                                        IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
                                .phy_cap_info[6] =
                                        IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
                                        IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
                                .phy_cap_info[7] =
                                        IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW,
                        },

                        /* For all MCS and bandwidth, set 8 NSS for both Tx and
                         * Rx
                         */
                        .eht_mcs_nss_supp = {
                                /*
                                 * Since B0, B1, B2 and B3 are not set in
                                 * the supported channel width set field in the
                                 * HE PHY capabilities information field the
                                 * device is a 20MHz only device on 2.4GHz band.
                                 */
                                .only_20mhz = {
                                        .rx_tx_mcs7_max_nss = 0x88,
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                        },
                        /* PPE threshold information is not supported */
                },
        },
#ifdef CONFIG_MAC80211_MESH
        {
                .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
                .he_cap = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
                                .mac_cap_info[2] =
                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
                                .mac_cap_info[3] =
                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
                                .phy_cap_info[0] =
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G,
                                .phy_cap_info[1] =
                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
                                .phy_cap_info[2] = 0,

                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        .he_mcs_nss_supp = {
                                .rx_mcs_80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80 = cpu_to_le16(0xfffa),
                                .rx_mcs_160 = cpu_to_le16(0xffff),
                                .tx_mcs_160 = cpu_to_le16(0xffff),
                                .rx_mcs_80p80 = cpu_to_le16(0xffff),
                                .tx_mcs_80p80 = cpu_to_le16(0xffff),
                        },
                },
        },
#endif
};

static const struct ieee80211_sband_iftype_data sband_capa_5ghz[] = {
        {
                .types_mask = BIT(NL80211_IFTYPE_STATION) |
                              BIT(NL80211_IFTYPE_P2P_CLIENT),
                .he_cap = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
                                .mac_cap_info[2] =
                                        IEEE80211_HE_MAC_CAP2_BSR |
                                        IEEE80211_HE_MAC_CAP2_MU_CASCADING |
                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
                                .mac_cap_info[3] =
                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
                                .phy_cap_info[0] =
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
                                .phy_cap_info[1] =
                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
                                .phy_cap_info[2] =
                                        IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
                                        IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,

                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        .he_mcs_nss_supp = {
                                .rx_mcs_80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80 = cpu_to_le16(0xfffa),
                                .rx_mcs_160 = cpu_to_le16(0xfffa),
                                .tx_mcs_160 = cpu_to_le16(0xfffa),
                                .rx_mcs_80p80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80p80 = cpu_to_le16(0xfffa),
                        },
                },
                .eht_cap = {
                        .has_eht = true,
                        .eht_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
                                        IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
                                        IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
                                .phy_cap_info[0] =
                                        IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
                                        IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
                                        IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
                                        IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
                                .phy_cap_info[1] =
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK,
                                .phy_cap_info[2] =
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK,
                                .phy_cap_info[3] =
                                        IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
                                .phy_cap_info[4] =
                                        IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
                                        IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
                                .phy_cap_info[5] =
                                        IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
                                        IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
                                        IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
                                .phy_cap_info[6] =
                                        IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
                                        IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
                                .phy_cap_info[7] =
                                        IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ,
                        },

                        /* For all MCS and bandwidth, set 8 NSS for both Tx and
                         * Rx
                         */
                        .eht_mcs_nss_supp = {
                                /*
                                 * As B1 and B2 are set in the supported
                                 * channel width set field in the HE PHY
                                 * capabilities information field include all
                                 * the following MCS/NSS.
                                 */
                                .bw._80 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                                .bw._160 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                        },
                        /* PPE threshold information is not supported */
                },
        },
        {
                .types_mask = BIT(NL80211_IFTYPE_AP) |
                              BIT(NL80211_IFTYPE_P2P_GO),
                .he_cap = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
                                .mac_cap_info[2] =
                                        IEEE80211_HE_MAC_CAP2_BSR |
                                        IEEE80211_HE_MAC_CAP2_MU_CASCADING |
                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
                                .mac_cap_info[3] =
                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
                                .phy_cap_info[0] =
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
                                .phy_cap_info[1] =
                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
                                .phy_cap_info[2] =
                                        IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
                                        IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,

                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        .he_mcs_nss_supp = {
                                .rx_mcs_80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80 = cpu_to_le16(0xfffa),
                                .rx_mcs_160 = cpu_to_le16(0xfffa),
                                .tx_mcs_160 = cpu_to_le16(0xfffa),
                                .rx_mcs_80p80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80p80 = cpu_to_le16(0xfffa),
                        },
                },
                .eht_cap = {
                        .has_eht = true,
                        .eht_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
                                        IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
                                        IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
                                .phy_cap_info[0] =
                                        IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
                                        IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
                                        IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
                                        IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
                                .phy_cap_info[1] =
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK,
                                .phy_cap_info[2] =
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK,
                                .phy_cap_info[3] =
                                        IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
                                .phy_cap_info[4] =
                                        IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
                                        IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
                                .phy_cap_info[5] =
                                        IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
                                        IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
                                        IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
                                .phy_cap_info[6] =
                                        IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
                                        IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
                                .phy_cap_info[7] =
                                        IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ,
                        },

                        /* For all MCS and bandwidth, set 8 NSS for both Tx and
                         * Rx
                         */
                        .eht_mcs_nss_supp = {
                                /*
                                 * As B1 and B2 are set in the supported
                                 * channel width set field in the HE PHY
                                 * capabilities information field include all
                                 * the following MCS/NSS.
                                 */
                                .bw._80 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                                .bw._160 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                        },
                        /* PPE threshold information is not supported */
                },
        },
#ifdef CONFIG_MAC80211_MESH
        {
                /* TODO: should we support other types, e.g., IBSS?*/
                .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
                .he_cap = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
                                .mac_cap_info[2] =
                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
                                .mac_cap_info[3] =
                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
                                .phy_cap_info[0] =
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
                                .phy_cap_info[1] =
                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
                                .phy_cap_info[2] = 0,

                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        .he_mcs_nss_supp = {
                                .rx_mcs_80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80 = cpu_to_le16(0xfffa),
                                .rx_mcs_160 = cpu_to_le16(0xfffa),
                                .tx_mcs_160 = cpu_to_le16(0xfffa),
                                .rx_mcs_80p80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80p80 = cpu_to_le16(0xfffa),
                        },
                },
        },
#endif
};

static const struct ieee80211_sband_iftype_data sband_capa_6ghz[] = {
        {
                .types_mask = BIT(NL80211_IFTYPE_STATION) |
                              BIT(NL80211_IFTYPE_P2P_CLIENT),
                .he_6ghz_capa = {
                        .capa = cpu_to_le16(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START |
                                            IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP |
                                            IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN |
                                            IEEE80211_HE_6GHZ_CAP_SM_PS |
                                            IEEE80211_HE_6GHZ_CAP_RD_RESPONDER |
                                            IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
                                            IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS),
                },
                .he_cap = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
                                .mac_cap_info[2] =
                                        IEEE80211_HE_MAC_CAP2_BSR |
                                        IEEE80211_HE_MAC_CAP2_MU_CASCADING |
                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
                                .mac_cap_info[3] =
                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
                                .phy_cap_info[0] =
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
                                .phy_cap_info[1] =
                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
                                .phy_cap_info[2] =
                                        IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
                                        IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,

                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        .he_mcs_nss_supp = {
                                .rx_mcs_80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80 = cpu_to_le16(0xfffa),
                                .rx_mcs_160 = cpu_to_le16(0xfffa),
                                .tx_mcs_160 = cpu_to_le16(0xfffa),
                                .rx_mcs_80p80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80p80 = cpu_to_le16(0xfffa),
                        },
                },
                .eht_cap = {
                        .has_eht = true,
                        .eht_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
                                        IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
                                        IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
                                .phy_cap_info[0] =
                                        IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ |
                                        IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
                                        IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
                                        IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
                                        IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
                                .phy_cap_info[1] =
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK,
                                .phy_cap_info[2] =
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK,
                                .phy_cap_info[3] =
                                        IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
                                .phy_cap_info[4] =
                                        IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
                                        IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
                                .phy_cap_info[5] =
                                        IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
                                        IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
                                        IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
                                .phy_cap_info[6] =
                                        IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
                                        IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK |
                                        IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP,
                                .phy_cap_info[7] =
                                        IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ,
                        },

                        /* For all MCS and bandwidth, set 8 NSS for both Tx and
                         * Rx
                         */
                        .eht_mcs_nss_supp = {
                                /*
                                 * As B1 and B2 are set in the supported
                                 * channel width set field in the HE PHY
                                 * capabilities information field and 320MHz in
                                 * 6GHz is supported include all the following
                                 * MCS/NSS.
                                 */
                                .bw._80 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                                .bw._160 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                                .bw._320 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                        },
                        /* PPE threshold information is not supported */
                },
        },
        {
                .types_mask = BIT(NL80211_IFTYPE_AP) |
                              BIT(NL80211_IFTYPE_P2P_GO),
                .he_6ghz_capa = {
                        .capa = cpu_to_le16(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START |
                                            IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP |
                                            IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN |
                                            IEEE80211_HE_6GHZ_CAP_SM_PS |
                                            IEEE80211_HE_6GHZ_CAP_RD_RESPONDER |
                                            IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
                                            IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS),
                },
                .he_cap = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
                                .mac_cap_info[2] =
                                        IEEE80211_HE_MAC_CAP2_BSR |
                                        IEEE80211_HE_MAC_CAP2_MU_CASCADING |
                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
                                .mac_cap_info[3] =
                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
                                .phy_cap_info[0] =
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
                                .phy_cap_info[1] =
                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
                                .phy_cap_info[2] =
                                        IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
                                        IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
                                        IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,

                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        .he_mcs_nss_supp = {
                                .rx_mcs_80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80 = cpu_to_le16(0xfffa),
                                .rx_mcs_160 = cpu_to_le16(0xfffa),
                                .tx_mcs_160 = cpu_to_le16(0xfffa),
                                .rx_mcs_80p80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80p80 = cpu_to_le16(0xfffa),
                        },
                },
                .eht_cap = {
                        .has_eht = true,
                        .eht_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
                                        IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
                                        IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
                                .phy_cap_info[0] =
                                        IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ |
                                        IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
                                        IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
                                        IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
                                        IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
                                        IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
                                .phy_cap_info[1] =
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK,
                                .phy_cap_info[2] =
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK |
                                        IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK,
                                .phy_cap_info[3] =
                                        IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
                                        IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
                                .phy_cap_info[4] =
                                        IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
                                        IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
                                        IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
                                        IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
                                .phy_cap_info[5] =
                                        IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
                                        IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
                                        IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
                                        IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
                                        IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
                                .phy_cap_info[6] =
                                        IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
                                        IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK |
                                        IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP,
                                .phy_cap_info[7] =
                                        IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
                                        IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
                                        IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ,
                        },

                        /* For all MCS and bandwidth, set 8 NSS for both Tx and
                         * Rx
                         */
                        .eht_mcs_nss_supp = {
                                /*
                                 * As B1 and B2 are set in the supported
                                 * channel width set field in the HE PHY
                                 * capabilities information field and 320MHz in
                                 * 6GHz is supported include all the following
                                 * MCS/NSS.
                                 */
                                .bw._80 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                                .bw._160 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                                .bw._320 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                        },
                        /* PPE threshold information is not supported */
                },
        },
#ifdef CONFIG_MAC80211_MESH
        {
                /* TODO: should we support other types, e.g., IBSS?*/
                .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
                .he_6ghz_capa = {
                        .capa = cpu_to_le16(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START |
                                            IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP |
                                            IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN |
                                            IEEE80211_HE_6GHZ_CAP_SM_PS |
                                            IEEE80211_HE_6GHZ_CAP_RD_RESPONDER |
                                            IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
                                            IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS),
                },
                .he_cap = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
                                .mac_cap_info[2] =
                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
                                .mac_cap_info[3] =
                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
                                .phy_cap_info[0] =
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
                                .phy_cap_info[1] =
                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
                                .phy_cap_info[2] = 0,

                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        .he_mcs_nss_supp = {
                                .rx_mcs_80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80 = cpu_to_le16(0xfffa),
                                .rx_mcs_160 = cpu_to_le16(0xfffa),
                                .tx_mcs_160 = cpu_to_le16(0xfffa),
                                .rx_mcs_80p80 = cpu_to_le16(0xfffa),
                                .tx_mcs_80p80 = cpu_to_le16(0xfffa),
                        },
                },
                .eht_cap = {
                        .has_eht = true,
                        .eht_cap_elem = {
                                .mac_cap_info[0] = IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
                                                   IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
                                .phy_cap_info[0] = IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ,
                                /* Leave all the other PHY capability bytes
                                 * unset, as DCM, beam forming, RU and PPE
                                 * threshold information are not supported
                                 */
                        },
                        /* For all MCS and bandwidth, set 8 NSS for both Tx and
                         * Rx
                         */
                        .eht_mcs_nss_supp = {
                                /* As B1 and B2 are set in the supported
                                 * channel width set field in the HE PHY
                                 * capabilities information field and 320MHz in
                                 * 6GHz is supported include all the following
                                 * MCS/NSS.
                                 */
                                .bw._80 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                                .bw._160 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                                .bw._320 = {
                                        .rx_tx_mcs9_max_nss = 0x88,
                                        .rx_tx_mcs11_max_nss = 0x88,
                                        .rx_tx_mcs13_max_nss = 0x88,
                                },
                        },
                        /* PPE threshold information is not supported */
                },
        },
#endif
};

static void mac80211_hwsim_sband_capab(struct ieee80211_supported_band *sband)
{
        switch (sband->band) {
        case NL80211_BAND_2GHZ:
                ieee80211_set_sband_iftype_data(sband, sband_capa_2ghz);
                break;
        case NL80211_BAND_5GHZ:
                ieee80211_set_sband_iftype_data(sband, sband_capa_5ghz);
                break;
        case NL80211_BAND_6GHZ:
                ieee80211_set_sband_iftype_data(sband, sband_capa_6ghz);
                break;
        default:
                break;
        }
}

#ifdef CONFIG_MAC80211_MESH
#define HWSIM_MESH_BIT BIT(NL80211_IFTYPE_MESH_POINT)
#else
#define HWSIM_MESH_BIT 0
#endif

#define HWSIM_DEFAULT_IF_LIMIT \
        (BIT(NL80211_IFTYPE_STATION) | \
         BIT(NL80211_IFTYPE_P2P_CLIENT) | \
         BIT(NL80211_IFTYPE_AP) | \
         BIT(NL80211_IFTYPE_P2P_GO) | \
         HWSIM_MESH_BIT)

#define HWSIM_IFTYPE_SUPPORT_MASK \
        (BIT(NL80211_IFTYPE_STATION) | \
         BIT(NL80211_IFTYPE_AP) | \
         BIT(NL80211_IFTYPE_P2P_CLIENT) | \
         BIT(NL80211_IFTYPE_P2P_GO) | \
         BIT(NL80211_IFTYPE_ADHOC) | \
         BIT(NL80211_IFTYPE_MESH_POINT) | \
         BIT(NL80211_IFTYPE_OCB))

static const u8 iftypes_ext_capa_ap[] = {
         [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
         [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
         [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
               WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
         [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
         [9] = WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT,
};

#define MAC80211_HWSIM_MLD_CAPA_OPS                             \
        FIELD_PREP_CONST(IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \
                         IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME) | \
        FIELD_PREP_CONST(IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS, \
                         IEEE80211_MLD_MAX_NUM_LINKS - 1)

static const struct wiphy_iftype_ext_capab mac80211_hwsim_iftypes_ext_capa[] = {
        {
                .iftype = NL80211_IFTYPE_AP,
                .extended_capabilities = iftypes_ext_capa_ap,
                .extended_capabilities_mask = iftypes_ext_capa_ap,
                .extended_capabilities_len = sizeof(iftypes_ext_capa_ap),
                .eml_capabilities = IEEE80211_EML_CAP_EMLSR_SUPP |
                                    IEEE80211_EML_CAP_EMLMR_SUPPORT,
                .mld_capa_and_ops = MAC80211_HWSIM_MLD_CAPA_OPS,
        },
};

static int mac80211_hwsim_new_radio(struct genl_info *info,
                                    struct hwsim_new_radio_params *param)
{
        int err;
        u8 addr[ETH_ALEN];
        struct mac80211_hwsim_data *data;
        struct ieee80211_hw *hw;
        enum nl80211_band band;
        const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
        struct net *net;
        int idx, i;
        int n_limits = 0;
        int n_bands = 0;

        if (WARN_ON(param->channels > 1 && !param->use_chanctx))
                return -EINVAL;

        spin_lock_bh(&hwsim_radio_lock);
        idx = hwsim_radio_idx++;
        spin_unlock_bh(&hwsim_radio_lock);

        if (param->mlo)
                ops = &mac80211_hwsim_mlo_ops;
        else if (param->use_chanctx)
                ops = &mac80211_hwsim_mchan_ops;
        hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
        if (!hw) {
                pr_debug("mac80211_hwsim: ieee80211_alloc_hw failed\n");
                err = -ENOMEM;
                goto failed;
        }

        /* ieee80211_alloc_hw_nm may have used a default name */
        param->hwname = wiphy_name(hw->wiphy);

        if (info)
                net = genl_info_net(info);
        else
                net = &init_net;
        wiphy_net_set(hw->wiphy, net);

        data = hw->priv;
        data->hw = hw;

        data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
        if (IS_ERR(data->dev)) {
                printk(KERN_DEBUG
                       "mac80211_hwsim: device_create failed (%ld)\n",
                       PTR_ERR(data->dev));
                err = -ENOMEM;
                goto failed_drvdata;
        }
        data->dev->driver = &mac80211_hwsim_driver.driver;
        err = device_bind_driver(data->dev);
        if (err != 0) {
                pr_debug("mac80211_hwsim: device_bind_driver failed (%d)\n",
                       err);
                goto failed_bind;
        }

        skb_queue_head_init(&data->pending);

        SET_IEEE80211_DEV(hw, data->dev);
        if (!param->perm_addr) {
                eth_zero_addr(addr);
                addr[0] = 0x02;
                addr[3] = idx >> 8;
                addr[4] = idx;
                memcpy(data->addresses[0].addr, addr, ETH_ALEN);
                /* Why need here second address ? */
                memcpy(data->addresses[1].addr, addr, ETH_ALEN);
                data->addresses[1].addr[0] |= 0x40;
                memcpy(data->addresses[2].addr, addr, ETH_ALEN);
                data->addresses[2].addr[0] |= 0x50;

                hw->wiphy->n_addresses = 3;
                hw->wiphy->addresses = data->addresses;
                /* possible address clash is checked at hash table insertion */
        } else {
                memcpy(data->addresses[0].addr, param->perm_addr, ETH_ALEN);
                /* compatibility with automatically generated mac addr */
                memcpy(data->addresses[1].addr, param->perm_addr, ETH_ALEN);
                memcpy(data->addresses[2].addr, param->perm_addr, ETH_ALEN);
                hw->wiphy->n_addresses = 3;
                hw->wiphy->addresses = data->addresses;
        }

        data->channels = param->channels;
        data->use_chanctx = param->use_chanctx;
        data->idx = idx;
        data->destroy_on_close = param->destroy_on_close;
        if (info)
                data->portid = info->snd_portid;

        /* setup interface limits, only on interface types we support */
        if (param->iftypes & BIT(NL80211_IFTYPE_ADHOC)) {
                data->if_limits[n_limits].max = 1;
                data->if_limits[n_limits].types = BIT(NL80211_IFTYPE_ADHOC);
                n_limits++;
        }

        if (param->iftypes & HWSIM_DEFAULT_IF_LIMIT) {
                data->if_limits[n_limits].max = 2048;
                /*
                 * For this case, we may only support a subset of
                 * HWSIM_DEFAULT_IF_LIMIT, therefore we only want to add the
                 * bits that both param->iftype & HWSIM_DEFAULT_IF_LIMIT have.
                 */
                data->if_limits[n_limits].types =
                                        HWSIM_DEFAULT_IF_LIMIT & param->iftypes;
                n_limits++;
        }

        if (param->iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
                data->if_limits[n_limits].max = 1;
                data->if_limits[n_limits].types =
                                                BIT(NL80211_IFTYPE_P2P_DEVICE);
                n_limits++;
        }

        if (param->iftypes & BIT(NL80211_IFTYPE_NAN)) {
                data->if_limits[n_limits].max = 1;
                data->if_limits[n_limits].types = BIT(NL80211_IFTYPE_NAN);
                n_limits++;

                hw->wiphy->nan_supported_bands = BIT(NL80211_BAND_2GHZ) |
                                                 BIT(NL80211_BAND_5GHZ);

                hw->wiphy->nan_capa.flags = WIPHY_NAN_FLAGS_CONFIGURABLE_SYNC |
                                            WIPHY_NAN_FLAGS_USERSPACE_DE;
                hw->wiphy->nan_capa.op_mode = NAN_OP_MODE_PHY_MODE_MASK |
                                              NAN_OP_MODE_80P80MHZ |
                                              NAN_OP_MODE_160MHZ;

                hw->wiphy->nan_capa.n_antennas = 0x22;
                hw->wiphy->nan_capa.max_channel_switch_time = 0;
                hw->wiphy->nan_capa.dev_capabilities =
                        NAN_DEV_CAPA_EXT_KEY_ID_SUPPORTED |
                        NAN_DEV_CAPA_NDPE_SUPPORTED;

                hrtimer_setup(&data->nan_timer, mac80211_hwsim_nan_dw_start,
                              CLOCK_MONOTONIC, HRTIMER_MODE_ABS_SOFT);
        }

        data->if_combination.radar_detect_widths =
                                BIT(NL80211_CHAN_WIDTH_5) |
                                BIT(NL80211_CHAN_WIDTH_10) |
                                BIT(NL80211_CHAN_WIDTH_20_NOHT) |
                                BIT(NL80211_CHAN_WIDTH_20) |
                                BIT(NL80211_CHAN_WIDTH_40) |
                                BIT(NL80211_CHAN_WIDTH_80) |
                                BIT(NL80211_CHAN_WIDTH_160);

        if (data->use_chanctx) {
                hw->wiphy->max_scan_ssids = 255;
                hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
                hw->wiphy->max_remain_on_channel_duration = 1000;
                data->if_combination.num_different_channels = data->channels;
        } else {
                data->if_combination.num_different_channels = 1;
        }

        if (!n_limits) {
                err = -EINVAL;
                goto failed_hw;
        }

        data->if_combination.max_interfaces = 0;
        for (i = 0; i < n_limits; i++)
                data->if_combination.max_interfaces +=
                        data->if_limits[i].max;

        data->if_combination.n_limits = n_limits;
        data->if_combination.limits = data->if_limits;

        /*
         * If we actually were asked to support combinations,
         * advertise them - if there's only a single thing like
         * only IBSS then don't advertise it as combinations.
         */
        if (data->if_combination.max_interfaces > 1) {
                hw->wiphy->iface_combinations = &data->if_combination;
                hw->wiphy->n_iface_combinations = 1;
        }

        if (param->ciphers) {
                memcpy(data->ciphers, param->ciphers,
                       param->n_ciphers * sizeof(u32));
                hw->wiphy->cipher_suites = data->ciphers;
                hw->wiphy->n_cipher_suites = param->n_ciphers;
        }

        hw->wiphy->mbssid_max_interfaces = 8;
        hw->wiphy->ema_max_profile_periodicity = 3;

        data->rx_rssi = DEFAULT_RX_RSSI;

        INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
        INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
        INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);

        hw->queues = 5;
        hw->offchannel_tx_hw_queue = 4;

        ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
        ieee80211_hw_set(hw, CHANCTX_STA_CSA);
        ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
        ieee80211_hw_set(hw, QUEUE_CONTROL);
        ieee80211_hw_set(hw, WANT_MONITOR_VIF);
        ieee80211_hw_set(hw, AMPDU_AGGREGATION);
        ieee80211_hw_set(hw, MFP_CAPABLE);
        ieee80211_hw_set(hw, SIGNAL_DBM);
        ieee80211_hw_set(hw, SUPPORTS_PS);
        ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
        ieee80211_hw_set(hw, TDLS_WIDER_BW);
        ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
        ieee80211_hw_set(hw, STRICT);

        if (param->mlo) {
                hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO;
                ieee80211_hw_set(hw, HAS_RATE_CONTROL);
                ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
                ieee80211_hw_set(hw, CONNECTION_MONITOR);
                ieee80211_hw_set(hw, AP_LINK_PS);

                hw->wiphy->iftype_ext_capab = mac80211_hwsim_iftypes_ext_capa;
                hw->wiphy->num_iftype_ext_capab =
                        ARRAY_SIZE(mac80211_hwsim_iftypes_ext_capa);
        } else {
                ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
                ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
                if (rctbl)
                        ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
        }

        hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
        hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
                            WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
                            WIPHY_FLAG_AP_UAPSD |
                            WIPHY_FLAG_SUPPORTS_5_10_MHZ |
                            WIPHY_FLAG_HAS_CHANNEL_SWITCH;
        hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
                               NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
                               NL80211_FEATURE_STATIC_SMPS |
                               NL80211_FEATURE_DYNAMIC_SMPS |
                               NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
                               NL80211_FEATURE_AP_SCAN;
        wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
        wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_BEACON_PROTECTION);
        wiphy_ext_feature_set(hw->wiphy,
                              NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS);
        wiphy_ext_feature_set(hw->wiphy,
                              NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
        wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);

        wiphy_ext_feature_set(hw->wiphy,
                              NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT);
        wiphy_ext_feature_set(hw->wiphy,
                              NL80211_EXT_FEATURE_BSS_COLOR);

        hw->wiphy->interface_modes = param->iftypes;

        /* ask mac80211 to reserve space for magic */
        hw->vif_data_size = sizeof(struct hwsim_vif_priv);
        hw->sta_data_size = sizeof(struct hwsim_sta_priv);
        hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);

        memcpy(data->channels_2ghz, hwsim_channels_2ghz,
                sizeof(hwsim_channels_2ghz));
        memcpy(data->channels_5ghz, hwsim_channels_5ghz,
                sizeof(hwsim_channels_5ghz));
        memcpy(data->channels_6ghz, hwsim_channels_6ghz,
                sizeof(hwsim_channels_6ghz));
        memcpy(data->channels_s1g, hwsim_channels_s1g,
               sizeof(hwsim_channels_s1g));
        memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));

        for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
                struct ieee80211_supported_band *sband = &data->bands[band];
                struct wiphy_radio_freq_range *radio_range;
                const struct ieee80211_channel *c;
                struct wiphy_radio *radio;

                sband->band = band;

                switch (band) {
                case NL80211_BAND_2GHZ:
                        sband->channels = data->channels_2ghz;
                        sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
                        sband->bitrates = data->rates;
                        sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
                        break;
                case NL80211_BAND_5GHZ:
                        sband->channels = data->channels_5ghz;
                        sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
                        sband->bitrates = data->rates + 4;
                        sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;

                        sband->vht_cap.vht_supported = true;
                        sband->vht_cap.cap =
                                IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
                                IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
                                IEEE80211_VHT_CAP_RXLDPC |
                                IEEE80211_VHT_CAP_SHORT_GI_80 |
                                IEEE80211_VHT_CAP_SHORT_GI_160 |
                                IEEE80211_VHT_CAP_TXSTBC |
                                IEEE80211_VHT_CAP_RXSTBC_4 |
                                IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
                        sband->vht_cap.vht_mcs.rx_mcs_map =
                                cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
                        sband->vht_cap.vht_mcs.tx_mcs_map =
                                sband->vht_cap.vht_mcs.rx_mcs_map;
                        break;
                case NL80211_BAND_6GHZ:
                        sband->channels = data->channels_6ghz;
                        sband->n_channels = ARRAY_SIZE(hwsim_channels_6ghz);
                        sband->bitrates = data->rates + 4;
                        sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
                        break;
                case NL80211_BAND_S1GHZ:
                        memcpy(&sband->s1g_cap, &hwsim_s1g_cap,
                               sizeof(sband->s1g_cap));
                        sband->channels = data->channels_s1g;
                        sband->n_channels = ARRAY_SIZE(hwsim_channels_s1g);
                        break;
                default:
                        continue;
                }

                if (band != NL80211_BAND_6GHZ){
                        sband->ht_cap.ht_supported = true;
                        sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
                                            IEEE80211_HT_CAP_GRN_FLD |
                                            IEEE80211_HT_CAP_SGI_20 |
                                            IEEE80211_HT_CAP_SGI_40 |
                                            IEEE80211_HT_CAP_DSSSCCK40;
                        sband->ht_cap.ampdu_factor = 0x3;
                        sband->ht_cap.ampdu_density = 0x6;
                        memset(&sband->ht_cap.mcs, 0,
                               sizeof(sband->ht_cap.mcs));
                        sband->ht_cap.mcs.rx_mask[0] = 0xff;
                        sband->ht_cap.mcs.rx_mask[1] = 0xff;
                        sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
                }

                mac80211_hwsim_sband_capab(sband);

                hw->wiphy->bands[band] = sband;

                if (!param->multi_radio)
                        continue;

                c = sband->channels;
                radio_range = &data->radio_range[n_bands];
                radio_range->start_freq = ieee80211_channel_to_khz(c) - 10000;

                c += sband->n_channels - 1;
                radio_range->end_freq = ieee80211_channel_to_khz(c) + 10000;

                radio = &data->radio[n_bands++];
                radio->freq_range = radio_range;
                radio->n_freq_range = 1;
                radio->iface_combinations = &data->if_combination_radio;
                radio->n_iface_combinations = 1;
        }

        if (param->multi_radio) {
                hw->wiphy->radio = data->radio;
                hw->wiphy->n_radio = n_bands;

                memcpy(&data->if_combination_radio, &data->if_combination,
                       sizeof(data->if_combination));
                data->if_combination.num_different_channels *= n_bands;
        }

        if (data->use_chanctx)
                data->if_combination.radar_detect_widths = 0;

        /* By default all radios belong to the first group */
        data->group = 1;
        mutex_init(&data->mutex);

        data->netgroup = hwsim_net_get_netgroup(net);
        data->wmediumd = hwsim_net_get_wmediumd(net);

        /* Enable frame retransmissions for lossy channels */
        hw->max_rates = 4;
        hw->max_rate_tries = 11;

        hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
        hw->wiphy->n_vendor_commands =
                ARRAY_SIZE(mac80211_hwsim_vendor_commands);
        hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
        hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);

        if (param->reg_strict)
                hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
        if (param->regd) {
                data->regd = param->regd;
                hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
                wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
                /* give the regulatory workqueue a chance to run */
                schedule_timeout_interruptible(1);
        }

        wiphy_ext_feature_set(hw->wiphy,
                              NL80211_EXT_FEATURE_DFS_CONCURRENT);

        if (param->no_vif)
                ieee80211_hw_set(hw, NO_AUTO_VIF);

        wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
        wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_PUNCT);

        for (i = 0; i < ARRAY_SIZE(data->link_data); i++) {
                hrtimer_setup(&data->link_data[i].beacon_timer, mac80211_hwsim_beacon,
                              CLOCK_MONOTONIC, HRTIMER_MODE_ABS_SOFT);
                data->link_data[i].link_id = i;
        }

        err = ieee80211_register_hw(hw);
        if (err < 0) {
                pr_debug("mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
                       err);
                goto failed_hw;
        }

        wiphy_dbg(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);

        if (param->reg_alpha2) {
                data->alpha2[0] = param->reg_alpha2[0];
                data->alpha2[1] = param->reg_alpha2[1];
                regulatory_hint(hw->wiphy, param->reg_alpha2);
        }

        data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
        debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
        debugfs_create_file("group", 0666, data->debugfs, data,
                            &hwsim_fops_group);
        debugfs_create_file("rx_rssi", 0666, data->debugfs, data,
                            &hwsim_fops_rx_rssi);
        if (!data->use_chanctx)
                debugfs_create_file("dfs_simulate_radar", 0222,
                                    data->debugfs,
                                    data, &hwsim_simulate_radar);

        if (param->pmsr_capa) {
                data->pmsr_capa = *param->pmsr_capa;
                hw->wiphy->pmsr_capa = &data->pmsr_capa;
        }

        spin_lock_bh(&hwsim_radio_lock);
        err = rhashtable_insert_fast(&hwsim_radios_rht, &data->rht,
                                     hwsim_rht_params);
        if (err < 0) {
                if (info) {
                        GENL_SET_ERR_MSG(info, "perm addr already present");
                        NL_SET_BAD_ATTR(info->extack,
                                        info->attrs[HWSIM_ATTR_PERM_ADDR]);
                }
                spin_unlock_bh(&hwsim_radio_lock);
                goto failed_final_insert;
        }

        list_add_tail(&data->list, &hwsim_radios);
        hwsim_radios_generation++;
        spin_unlock_bh(&hwsim_radio_lock);

        hwsim_mcast_new_radio(idx, info, param);

        return idx;

failed_final_insert:
        debugfs_remove_recursive(data->debugfs);
        ieee80211_unregister_hw(data->hw);
failed_hw:
        device_release_driver(data->dev);
failed_bind:
        device_unregister(data->dev);
failed_drvdata:
        ieee80211_free_hw(hw);
failed:
        return err;
}

static void hwsim_mcast_del_radio(int id, const char *hwname,
                                  struct genl_info *info)
{
        struct sk_buff *skb;
        void *data;
        int ret;

        skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
        if (!skb)
                return;

        data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
                           HWSIM_CMD_DEL_RADIO);
        if (!data)
                goto error;

        ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
        if (ret < 0)
                goto error;

        ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
                      hwname);
        if (ret < 0)
                goto error;

        genlmsg_end(skb, data);

        hwsim_mcast_config_msg(skb, info);

        return;

error:
        nlmsg_free(skb);
}

static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
                                     const char *hwname,
                                     struct genl_info *info)
{
        hwsim_mcast_del_radio(data->idx, hwname, info);
        debugfs_remove_recursive(data->debugfs);
        ieee80211_unregister_hw(data->hw);
        device_release_driver(data->dev);
        device_unregister(data->dev);
        ieee80211_free_hw(data->hw);
}

static int mac80211_hwsim_get_radio(struct sk_buff *skb,
                                    struct mac80211_hwsim_data *data,
                                    u32 portid, u32 seq,
                                    struct netlink_callback *cb, int flags)
{
        void *hdr;
        struct hwsim_new_radio_params param = { };
        int res = -EMSGSIZE;

        hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
                          HWSIM_CMD_GET_RADIO);
        if (!hdr)
                return -EMSGSIZE;

        if (cb)
                genl_dump_check_consistent(cb, hdr);

        if (data->alpha2[0] && data->alpha2[1])
                param.reg_alpha2 = data->alpha2;

        param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
                                        REGULATORY_STRICT_REG);
        param.p2p_device = !!(data->hw->wiphy->interface_modes &
                                        BIT(NL80211_IFTYPE_P2P_DEVICE));
        param.nan_device = !!(data->hw->wiphy->interface_modes &
                                        BIT(NL80211_IFTYPE_NAN));
        param.use_chanctx = data->use_chanctx;
        param.regd = data->regd;
        param.channels = data->channels;
        param.hwname = wiphy_name(data->hw->wiphy);
        param.pmsr_capa = &data->pmsr_capa;

        res = append_radio_msg(skb, data->idx, &param);
        if (res < 0)
                goto out_err;

        genlmsg_end(skb, hdr);
        return 0;

out_err:
        genlmsg_cancel(skb, hdr);
        return res;
}

static void mac80211_hwsim_free(void)
{
        struct mac80211_hwsim_data *data;

        spin_lock_bh(&hwsim_radio_lock);
        while ((data = list_first_entry_or_null(&hwsim_radios,
                                                struct mac80211_hwsim_data,
                                                list))) {
                list_del(&data->list);
                spin_unlock_bh(&hwsim_radio_lock);
                mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
                                         NULL);
                spin_lock_bh(&hwsim_radio_lock);
        }
        spin_unlock_bh(&hwsim_radio_lock);
        class_destroy(hwsim_class);
}

static const struct net_device_ops hwsim_netdev_ops = {
        .ndo_start_xmit         = hwsim_mon_xmit,
        .ndo_set_mac_address    = eth_mac_addr,
        .ndo_validate_addr      = eth_validate_addr,
};

static void hwsim_mon_setup(struct net_device *dev)
{
        u8 addr[ETH_ALEN];

        dev->netdev_ops = &hwsim_netdev_ops;
        dev->needs_free_netdev = true;
        ether_setup(dev);
        dev->priv_flags |= IFF_NO_QUEUE;
        dev->type = ARPHRD_IEEE80211_RADIOTAP;
        eth_zero_addr(addr);
        addr[0] = 0x12;
        eth_hw_addr_set(dev, addr);
}

static void hwsim_register_wmediumd(struct net *net, u32 portid)
{
        struct mac80211_hwsim_data *data;

        hwsim_net_set_wmediumd(net, portid);

        spin_lock_bh(&hwsim_radio_lock);
        list_for_each_entry(data, &hwsim_radios, list) {
                if (data->netgroup == hwsim_net_get_netgroup(net))
                        data->wmediumd = portid;
        }
        spin_unlock_bh(&hwsim_radio_lock);
}

static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
                                           struct genl_info *info)
{

        struct ieee80211_hdr *hdr;
        struct mac80211_hwsim_data *data2;
        struct ieee80211_tx_info *txi;
        struct hwsim_tx_rate *tx_attempts;
        u64 ret_skb_cookie;
        struct sk_buff *skb, *tmp;
        const u8 *src;
        unsigned int hwsim_flags;
        int i;
        unsigned long flags;
        bool found = false;

        if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
            !info->attrs[HWSIM_ATTR_FLAGS] ||
            !info->attrs[HWSIM_ATTR_COOKIE] ||
            !info->attrs[HWSIM_ATTR_SIGNAL] ||
            !info->attrs[HWSIM_ATTR_TX_INFO])
                goto out;

        src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
        hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
        ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);

        data2 = get_hwsim_data_ref_from_addr(src);
        if (!data2)
                goto out;

        if (!hwsim_virtio_enabled) {
                if (hwsim_net_get_netgroup(genl_info_net(info)) !=
                    data2->netgroup)
                        goto out;

                if (info->snd_portid != data2->wmediumd)
                        goto out;
        }

        /* look for the skb matching the cookie passed back from user */
        spin_lock_irqsave(&data2->pending.lock, flags);
        skb_queue_walk_safe(&data2->pending, skb, tmp) {
                uintptr_t skb_cookie;

                txi = IEEE80211_SKB_CB(skb);
                skb_cookie = (uintptr_t)txi->rate_driver_data[0];

                if (skb_cookie == ret_skb_cookie) {
                        __skb_unlink(skb, &data2->pending);
                        found = true;
                        break;
                }
        }
        spin_unlock_irqrestore(&data2->pending.lock, flags);

        /* not found */
        if (!found)
                goto out;

        /* Tx info received because the frame was broadcasted on user space,
         so we get all the necessary info: tx attempts and skb control buff */

        tx_attempts = (struct hwsim_tx_rate *)nla_data(
                       info->attrs[HWSIM_ATTR_TX_INFO]);

        /* now send back TX status */
        txi = IEEE80211_SKB_CB(skb);

        ieee80211_tx_info_clear_status(txi);

        for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
                txi->status.rates[i].idx = tx_attempts[i].idx;
                txi->status.rates[i].count = tx_attempts[i].count;
        }

        txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);

        if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
           (hwsim_flags & HWSIM_TX_STAT_ACK)) {
                if (skb->len >= 16) {
                        hdr = (struct ieee80211_hdr *) skb->data;
                        mac80211_hwsim_monitor_ack(data2->channel,
                                                   hdr->addr2);
                }
                txi->flags |= IEEE80211_TX_STAT_ACK;
        }

        if (hwsim_flags & HWSIM_TX_CTL_NO_ACK)
                txi->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;

        ieee80211_tx_status_irqsafe(data2->hw, skb);
        return 0;
out:
        return -EINVAL;

}

static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
                                          struct genl_info *info)
{
        struct mac80211_hwsim_data *data2;
        struct ieee80211_rx_status rx_status;
        struct ieee80211_hdr *hdr;
        const u8 *dst;
        int frame_data_len;
        void *frame_data;
        struct sk_buff *skb = NULL;
        struct ieee80211_channel *channel = NULL;

        if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
            !info->attrs[HWSIM_ATTR_FRAME] ||
            !info->attrs[HWSIM_ATTR_RX_RATE] ||
            !info->attrs[HWSIM_ATTR_SIGNAL])
                goto out;

        dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
        frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
        frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);

        if (frame_data_len < sizeof(struct ieee80211_hdr_3addr) ||
            frame_data_len > IEEE80211_MAX_DATA_LEN)
                goto err;

        /* Allocate new skb here */
        skb = alloc_skb(frame_data_len, GFP_KERNEL);
        if (skb == NULL)
                goto err;

        /* Copy the data */
        skb_put_data(skb, frame_data, frame_data_len);

        data2 = get_hwsim_data_ref_from_addr(dst);
        if (!data2)
                goto out;

        if (data2->use_chanctx) {
                if (data2->tmp_chan)
                        channel = data2->tmp_chan;
        } else {
                channel = data2->channel;
        }

        if (!hwsim_virtio_enabled) {
                if (hwsim_net_get_netgroup(genl_info_net(info)) !=
                    data2->netgroup)
                        goto out;

                if (info->snd_portid != data2->wmediumd)
                        goto out;
        }

        /* check if radio is configured properly */

        if ((data2->idle && !data2->tmp_chan) || !data2->started)
                goto out;

        /* A frame is received from user space */
        memset(&rx_status, 0, sizeof(rx_status));
        if (info->attrs[HWSIM_ATTR_FREQ]) {
                struct tx_iter_data iter_data = {};

                /* throw away off-channel packets, but allow both the temporary
                 * ("hw" scan/remain-on-channel), regular channels and links,
                 * since the internal datapath also allows this
                 */
                rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);

                iter_data.channel = ieee80211_get_channel(data2->hw->wiphy,
                                                          rx_status.freq);
                if (!iter_data.channel)
                        goto out;
                rx_status.band = iter_data.channel->band;

                mutex_lock(&data2->mutex);
                if (!hwsim_chans_compat(iter_data.channel, channel)) {
                        ieee80211_iterate_active_interfaces_atomic(
                                data2->hw, IEEE80211_IFACE_ITER_NORMAL,
                                mac80211_hwsim_tx_iter, &iter_data);
                        if (!iter_data.receive) {
                                mutex_unlock(&data2->mutex);
                                goto out;
                        }
                }
                mutex_unlock(&data2->mutex);
        } else if (!channel) {
                goto out;
        } else {
                rx_status.freq = channel->center_freq;
                rx_status.band = channel->band;
        }

        rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
        if (rx_status.rate_idx >= data2->hw->wiphy->bands[rx_status.band]->n_bitrates)
                goto out;
        rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);

        hdr = (void *)skb->data;

        if (ieee80211_is_beacon(hdr->frame_control) ||
            ieee80211_is_probe_resp(hdr->frame_control))
                rx_status.boottime_ns = ktime_get_boottime_ns();

        mac80211_hwsim_rx(data2, &rx_status, skb);

        return 0;
err:
        pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
out:
        dev_kfree_skb(skb);
        return -EINVAL;
}

static int hwsim_register_received_nl(struct sk_buff *skb_2,
                                      struct genl_info *info)
{
        struct net *net = genl_info_net(info);
        struct mac80211_hwsim_data *data;
        int chans = 1;

        spin_lock_bh(&hwsim_radio_lock);
        list_for_each_entry(data, &hwsim_radios, list)
                chans = max(chans, data->channels);
        spin_unlock_bh(&hwsim_radio_lock);

        /* In the future we should revise the userspace API and allow it
         * to set a flag that it does support multi-channel, then we can
         * let this pass conditionally on the flag.
         * For current userspace, prohibit it since it won't work right.
         */
        if (chans > 1)
                return -EOPNOTSUPP;

        if (hwsim_net_get_wmediumd(net))
                return -EBUSY;

        hwsim_register_wmediumd(net, info->snd_portid);

        pr_debug("mac80211_hwsim: received a REGISTER, "
               "switching to wmediumd mode with pid %d\n", info->snd_portid);

        return 0;
}

/* ensures ciphers only include ciphers listed in 'hwsim_ciphers' array */
static bool hwsim_known_ciphers(const u32 *ciphers, int n_ciphers)
{
        int i;

        for (i = 0; i < n_ciphers; i++) {
                int j;
                int found = 0;

                for (j = 0; j < ARRAY_SIZE(hwsim_ciphers); j++) {
                        if (ciphers[i] == hwsim_ciphers[j]) {
                                found = 1;
                                break;
                        }
                }

                if (!found)
                        return false;
        }

        return true;
}

static int parse_ftm_capa(const struct nlattr *ftm_capa, struct cfg80211_pmsr_capabilities *out,
                          struct genl_info *info)
{
        struct nlattr *tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX + 1];
        int ret;

        ret = nla_parse_nested(tb, NL80211_PMSR_FTM_CAPA_ATTR_MAX, ftm_capa, hwsim_ftm_capa_policy,
                               NULL);
        if (ret) {
                NL_SET_ERR_MSG_ATTR(info->extack, ftm_capa, "malformed FTM capability");
                return -EINVAL;
        }

        out->ftm.supported = 1;
        if (tb[NL80211_PMSR_FTM_CAPA_ATTR_PREAMBLES])
                out->ftm.preambles = nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_PREAMBLES]);
        if (tb[NL80211_PMSR_FTM_CAPA_ATTR_BANDWIDTHS])
                out->ftm.bandwidths = nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_BANDWIDTHS]);
        if (tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_BURSTS_EXPONENT])
                out->ftm.max_bursts_exponent =
                        nla_get_u8(tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_BURSTS_EXPONENT]);
        if (tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST])
                out->ftm.max_ftms_per_burst =
                        nla_get_u8(tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST]);
        out->ftm.asap = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_ASAP];
        out->ftm.non_asap = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_NON_ASAP];
        out->ftm.request_lci = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_REQ_LCI];
        out->ftm.request_civicloc = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_REQ_CIVICLOC];
        out->ftm.trigger_based = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_TRIGGER_BASED];
        out->ftm.non_trigger_based = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_NON_TRIGGER_BASED];

        return 0;
}

static int parse_pmsr_capa(const struct nlattr *pmsr_capa, struct cfg80211_pmsr_capabilities *out,
                           struct genl_info *info)
{
        struct nlattr *tb[NL80211_PMSR_ATTR_MAX + 1];
        struct nlattr *nla;
        int size;
        int ret;

        ret = nla_parse_nested(tb, NL80211_PMSR_ATTR_MAX, pmsr_capa, hwsim_pmsr_capa_policy, NULL);
        if (ret) {
                NL_SET_ERR_MSG_ATTR(info->extack, pmsr_capa, "malformed PMSR capability");
                return -EINVAL;
        }

        if (tb[NL80211_PMSR_ATTR_MAX_PEERS])
                out->max_peers = nla_get_u32(tb[NL80211_PMSR_ATTR_MAX_PEERS]);
        out->report_ap_tsf = !!tb[NL80211_PMSR_ATTR_REPORT_AP_TSF];
        out->randomize_mac_addr = !!tb[NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR];

        if (!tb[NL80211_PMSR_ATTR_TYPE_CAPA]) {
                NL_SET_ERR_MSG_ATTR(info->extack, tb[NL80211_PMSR_ATTR_TYPE_CAPA],
                                    "malformed PMSR type");
                return -EINVAL;
        }

        nla_for_each_nested(nla, tb[NL80211_PMSR_ATTR_TYPE_CAPA], size) {
                switch (nla_type(nla)) {
                case NL80211_PMSR_TYPE_FTM:
                        parse_ftm_capa(nla, out, info);
                        break;
                default:
                        NL_SET_ERR_MSG_ATTR(info->extack, nla, "unsupported measurement type");
                        return -EINVAL;
                }
        }

        return 0;
}

static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
{
        struct hwsim_new_radio_params param = { 0 };
        const char *hwname = NULL;
        int ret;

        param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
        param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
        param.nan_device = info->attrs[HWSIM_ATTR_SUPPORT_NAN_DEVICE];
        param.channels = channels;
        param.destroy_on_close =
                info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];

        if (info->attrs[HWSIM_ATTR_CHANNELS])
                param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);

        if (param.channels < 1) {
                GENL_SET_ERR_MSG(info, "must have at least one channel");
                return -EINVAL;
        }

        if (info->attrs[HWSIM_ATTR_NO_VIF])
                param.no_vif = true;

        if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
                param.use_chanctx = true;
        else
                param.use_chanctx = (param.channels > 1);

        if (info->attrs[HWSIM_ATTR_MULTI_RADIO])
                param.multi_radio = true;

        if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
                param.reg_alpha2 =
                        nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);

        if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
                u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);

                if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
                        return -EINVAL;

                idx = array_index_nospec(idx,
                                         ARRAY_SIZE(hwsim_world_regdom_custom));
                param.regd = hwsim_world_regdom_custom[idx];
        }

        if (info->attrs[HWSIM_ATTR_PERM_ADDR]) {
                if (!is_valid_ether_addr(
                                nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]))) {
                        GENL_SET_ERR_MSG(info,"MAC is no valid source addr");
                        NL_SET_BAD_ATTR(info->extack,
                                        info->attrs[HWSIM_ATTR_PERM_ADDR]);
                        return -EINVAL;
                }

                param.perm_addr = nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]);
        }

        if (info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]) {
                param.iftypes =
                        nla_get_u32(info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]);

                if (param.iftypes & ~HWSIM_IFTYPE_SUPPORT_MASK) {
                        NL_SET_ERR_MSG_ATTR(info->extack,
                                            info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT],
                                            "cannot support more iftypes than kernel");
                        return -EINVAL;
                }
        } else {
                param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
        }

        /* ensure both flag and iftype support is honored */
        if (param.p2p_device ||
            param.iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
                param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
                param.p2p_device = true;
        }

        /* ensure both flag and iftype support is honored */
        if (param.nan_device ||
            param.iftypes & BIT(NL80211_IFTYPE_NAN)) {
                param.iftypes |= BIT(NL80211_IFTYPE_NAN);
                param.nan_device = true;
        }

        if (info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]) {
                u32 len = nla_len(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);

                param.ciphers =
                        nla_data(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);

                if (len % sizeof(u32)) {
                        NL_SET_ERR_MSG_ATTR(info->extack,
                                            info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
                                            "bad cipher list length");
                        return -EINVAL;
                }

                param.n_ciphers = len / sizeof(u32);

                if (param.n_ciphers > ARRAY_SIZE(hwsim_ciphers)) {
                        NL_SET_ERR_MSG_ATTR(info->extack,
                                            info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
                                            "too many ciphers specified");
                        return -EINVAL;
                }

                if (!hwsim_known_ciphers(param.ciphers, param.n_ciphers)) {
                        NL_SET_ERR_MSG_ATTR(info->extack,
                                            info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
                                            "unsupported ciphers specified");
                        return -EINVAL;
                }
        }

        param.mlo = info->attrs[HWSIM_ATTR_MLO_SUPPORT];

        if (param.mlo || param.multi_radio)
                param.use_chanctx = true;

        if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
                hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
                                  nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
                                  GFP_KERNEL);
                if (!hwname)
                        return -ENOMEM;
                param.hwname = hwname;
        }

        if (info->attrs[HWSIM_ATTR_PMSR_SUPPORT]) {
                struct cfg80211_pmsr_capabilities *pmsr_capa;

                pmsr_capa = kzalloc_obj(*pmsr_capa);
                if (!pmsr_capa) {
                        ret = -ENOMEM;
                        goto out_free;
                }
                param.pmsr_capa = pmsr_capa;

                ret = parse_pmsr_capa(info->attrs[HWSIM_ATTR_PMSR_SUPPORT], pmsr_capa, info);
                if (ret)
                        goto out_free;
        }

        ret = mac80211_hwsim_new_radio(info, &param);

out_free:
        kfree(hwname);
        kfree(param.pmsr_capa);
        return ret;
}

static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
{
        struct mac80211_hwsim_data *data;
        s64 idx = -1;
        const char *hwname = NULL;

        if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
                idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
        } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
                hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
                                  nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
                                  GFP_KERNEL);
                if (!hwname)
                        return -ENOMEM;
        } else
                return -EINVAL;

        spin_lock_bh(&hwsim_radio_lock);
        list_for_each_entry(data, &hwsim_radios, list) {
                if (idx >= 0) {
                        if (data->idx != idx)
                                continue;
                } else {
                        if (!hwname ||
                            strcmp(hwname, wiphy_name(data->hw->wiphy)))
                                continue;
                }

                if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
                        continue;

                list_del(&data->list);
                rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
                                       hwsim_rht_params);
                hwsim_radios_generation++;
                spin_unlock_bh(&hwsim_radio_lock);
                mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
                                         info);
                kfree(hwname);
                return 0;
        }
        spin_unlock_bh(&hwsim_radio_lock);

        kfree(hwname);
        return -ENODEV;
}

static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
{
        struct mac80211_hwsim_data *data;
        struct sk_buff *skb;
        int idx, res = -ENODEV;

        if (!info->attrs[HWSIM_ATTR_RADIO_ID])
                return -EINVAL;
        idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);

        spin_lock_bh(&hwsim_radio_lock);
        list_for_each_entry(data, &hwsim_radios, list) {
                if (data->idx != idx)
                        continue;

                if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
                        continue;

                skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
                if (!skb) {
                        res = -ENOMEM;
                        goto out_err;
                }

                res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
                                               info->snd_seq, NULL, 0);
                if (res < 0) {
                        nlmsg_free(skb);
                        goto out_err;
                }

                res = genlmsg_reply(skb, info);
                break;
        }

out_err:
        spin_unlock_bh(&hwsim_radio_lock);

        return res;
}

static int hwsim_dump_radio_nl(struct sk_buff *skb,
                               struct netlink_callback *cb)
{
        int last_idx = cb->args[0] - 1;
        struct mac80211_hwsim_data *data = NULL;
        int res = 0;
        void *hdr;

        spin_lock_bh(&hwsim_radio_lock);
        cb->seq = hwsim_radios_generation;

        if (last_idx >= hwsim_radio_idx-1)
                goto done;

        list_for_each_entry(data, &hwsim_radios, list) {
                if (data->idx <= last_idx)
                        continue;

                if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
                        continue;

                res = mac80211_hwsim_get_radio(skb, data,
                                               NETLINK_CB(cb->skb).portid,
                                               cb->nlh->nlmsg_seq, cb,
                                               NLM_F_MULTI);
                if (res < 0)
                        break;

                last_idx = data->idx;
        }

        cb->args[0] = last_idx + 1;

        /* list changed, but no new element sent, set interrupted flag */
        if (skb->len == 0 && cb->prev_seq && cb->seq != cb->prev_seq) {
                hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
                                  cb->nlh->nlmsg_seq, &hwsim_genl_family,
                                  NLM_F_MULTI, HWSIM_CMD_GET_RADIO);
                if (hdr) {
                        genl_dump_check_consistent(cb, hdr);
                        genlmsg_end(skb, hdr);
                } else {
                        res = -EMSGSIZE;
                }
        }

done:
        spin_unlock_bh(&hwsim_radio_lock);
        return res ?: skb->len;
}

/* Generic Netlink operations array */
static const struct genl_small_ops hwsim_ops[] = {
        {
                .cmd = HWSIM_CMD_REGISTER,
                .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
                .doit = hwsim_register_received_nl,
                .flags = GENL_UNS_ADMIN_PERM,
        },
        {
                .cmd = HWSIM_CMD_FRAME,
                .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
                .doit = hwsim_cloned_frame_received_nl,
        },
        {
                .cmd = HWSIM_CMD_TX_INFO_FRAME,
                .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
                .doit = hwsim_tx_info_frame_received_nl,
        },
        {
                .cmd = HWSIM_CMD_NEW_RADIO,
                .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
                .doit = hwsim_new_radio_nl,
                .flags = GENL_UNS_ADMIN_PERM,
        },
        {
                .cmd = HWSIM_CMD_DEL_RADIO,
                .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
                .doit = hwsim_del_radio_nl,
                .flags = GENL_UNS_ADMIN_PERM,
        },
        {
                .cmd = HWSIM_CMD_GET_RADIO,
                .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
                .doit = hwsim_get_radio_nl,
                .dumpit = hwsim_dump_radio_nl,
        },
        {
                .cmd = HWSIM_CMD_REPORT_PMSR,
                .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
                .doit = hwsim_pmsr_report_nl,
        },
};

static struct genl_family hwsim_genl_family __ro_after_init = {
        .name = "MAC80211_HWSIM",
        .version = 1,
        .maxattr = HWSIM_ATTR_MAX,
        .policy = hwsim_genl_policy,
        .netnsok = true,
        .module = THIS_MODULE,
        .small_ops = hwsim_ops,
        .n_small_ops = ARRAY_SIZE(hwsim_ops),
        .resv_start_op = HWSIM_CMD_REPORT_PMSR + 1, // match with __HWSIM_CMD_MAX
        .mcgrps = hwsim_mcgrps,
        .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
};

static void remove_user_radios(u32 portid, int netgroup)
{
        struct mac80211_hwsim_data *entry, *tmp;
        LIST_HEAD(list);

        spin_lock_bh(&hwsim_radio_lock);
        list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
                if (entry->destroy_on_close && entry->portid == portid &&
                    entry->netgroup == netgroup) {
                        list_move(&entry->list, &list);
                        rhashtable_remove_fast(&hwsim_radios_rht, &entry->rht,
                                               hwsim_rht_params);
                        hwsim_radios_generation++;
                }
        }
        spin_unlock_bh(&hwsim_radio_lock);

        list_for_each_entry_safe(entry, tmp, &list, list) {
                list_del(&entry->list);
                mac80211_hwsim_del_radio(entry, wiphy_name(entry->hw->wiphy),
                                         NULL);
        }
}

static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
                                         unsigned long state,
                                         void *_notify)
{
        struct netlink_notify *notify = _notify;

        if (state != NETLINK_URELEASE)
                return NOTIFY_DONE;

        remove_user_radios(notify->portid, hwsim_net_get_netgroup(notify->net));

        if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
                printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
                       " socket, switching to perfect channel medium\n");
                hwsim_register_wmediumd(notify->net, 0);
        }
        return NOTIFY_DONE;

}

static struct notifier_block hwsim_netlink_notifier = {
        .notifier_call = mac80211_hwsim_netlink_notify,
};

static int __init hwsim_init_netlink(void)
{
        int rc;

        printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");

        rc = genl_register_family(&hwsim_genl_family);
        if (rc)
                goto failure;

        rc = netlink_register_notifier(&hwsim_netlink_notifier);
        if (rc) {
                genl_unregister_family(&hwsim_genl_family);
                goto failure;
        }

        return 0;

failure:
        pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
        return -EINVAL;
}

static __net_init int hwsim_init_net(struct net *net)
{
        return hwsim_net_set_netgroup(net);
}

static void __net_exit hwsim_exit_net(struct net *net)
{
        struct mac80211_hwsim_data *data, *tmp;
        LIST_HEAD(list);

        spin_lock_bh(&hwsim_radio_lock);
        list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
                if (!net_eq(wiphy_net(data->hw->wiphy), net))
                        continue;

                /* Radios created in init_net are returned to init_net. */
                if (data->netgroup == hwsim_net_get_netgroup(&init_net))
                        continue;

                list_move(&data->list, &list);
                rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
                                       hwsim_rht_params);
                hwsim_radios_generation++;
        }
        spin_unlock_bh(&hwsim_radio_lock);

        list_for_each_entry_safe(data, tmp, &list, list) {
                list_del(&data->list);
                mac80211_hwsim_del_radio(data,
                                         wiphy_name(data->hw->wiphy),
                                         NULL);
        }

        ida_free(&hwsim_netgroup_ida, hwsim_net_get_netgroup(net));
}

static struct pernet_operations hwsim_net_ops = {
        .init = hwsim_init_net,
        .exit = hwsim_exit_net,
        .id   = &hwsim_net_id,
        .size = sizeof(struct hwsim_net),
};

static void hwsim_exit_netlink(void)
{
        /* unregister the notifier */
        netlink_unregister_notifier(&hwsim_netlink_notifier);
        /* unregister the family */
        genl_unregister_family(&hwsim_genl_family);
}

#if IS_REACHABLE(CONFIG_VIRTIO)
static void hwsim_virtio_tx_done(struct virtqueue *vq)
{
        unsigned int len;
        struct sk_buff *skb;
        unsigned long flags;

        spin_lock_irqsave(&hwsim_virtio_lock, flags);
        while ((skb = virtqueue_get_buf(vq, &len)))
                dev_kfree_skb_irq(skb);
        spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
}

static int hwsim_virtio_handle_cmd(struct sk_buff *skb)
{
        struct nlmsghdr *nlh;
        struct genlmsghdr *gnlh;
        struct nlattr *tb[HWSIM_ATTR_MAX + 1];
        struct genl_info info = {};
        int err;

        nlh = nlmsg_hdr(skb);
        gnlh = nlmsg_data(nlh);

        if (skb->len < nlh->nlmsg_len)
                return -EINVAL;

        err = genlmsg_parse(nlh, &hwsim_genl_family, tb, HWSIM_ATTR_MAX,
                            hwsim_genl_policy, NULL);
        if (err) {
                pr_err_ratelimited("hwsim: genlmsg_parse returned %d\n", err);
                return err;
        }

        info.attrs = tb;

        switch (gnlh->cmd) {
        case HWSIM_CMD_FRAME:
                hwsim_cloned_frame_received_nl(skb, &info);
                break;
        case HWSIM_CMD_TX_INFO_FRAME:
                hwsim_tx_info_frame_received_nl(skb, &info);
                break;
        case HWSIM_CMD_REPORT_PMSR:
                hwsim_pmsr_report_nl(skb, &info);
                break;
        default:
                pr_err_ratelimited("hwsim: invalid cmd: %d\n", gnlh->cmd);
                return -EPROTO;
        }
        return 0;
}

static void hwsim_virtio_rx_work(struct work_struct *work)
{
        struct virtqueue *vq;
        unsigned int len;
        struct sk_buff *skb;
        struct scatterlist sg[1];
        int err;
        unsigned long flags;

        spin_lock_irqsave(&hwsim_virtio_lock, flags);
        if (!hwsim_virtio_enabled)
                goto out_unlock;

        skb = virtqueue_get_buf(hwsim_vqs[HWSIM_VQ_RX], &len);
        if (!skb)
                goto out_unlock;
        spin_unlock_irqrestore(&hwsim_virtio_lock, flags);

        skb->data = skb->head;
        skb_reset_tail_pointer(skb);
        skb_put(skb, len);
        hwsim_virtio_handle_cmd(skb);

        spin_lock_irqsave(&hwsim_virtio_lock, flags);
        if (!hwsim_virtio_enabled) {
                dev_kfree_skb_irq(skb);
                goto out_unlock;
        }
        vq = hwsim_vqs[HWSIM_VQ_RX];
        sg_init_one(sg, skb->head, skb_end_offset(skb));
        err = virtqueue_add_inbuf(vq, sg, 1, skb, GFP_ATOMIC);
        if (WARN(err, "virtqueue_add_inbuf returned %d\n", err))
                dev_kfree_skb_irq(skb);
        else
                virtqueue_kick(vq);
        schedule_work(&hwsim_virtio_rx);

out_unlock:
        spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
}

static void hwsim_virtio_rx_done(struct virtqueue *vq)
{
        schedule_work(&hwsim_virtio_rx);
}

static int init_vqs(struct virtio_device *vdev)
{
        struct virtqueue_info vqs_info[HWSIM_NUM_VQS] = {
                [HWSIM_VQ_TX] = { "tx", hwsim_virtio_tx_done },
                [HWSIM_VQ_RX] = { "rx", hwsim_virtio_rx_done },
        };

        return virtio_find_vqs(vdev, HWSIM_NUM_VQS,
                               hwsim_vqs, vqs_info, NULL);
}

static int fill_vq(struct virtqueue *vq)
{
        int i, err;
        struct sk_buff *skb;
        struct scatterlist sg[1];

        for (i = 0; i < virtqueue_get_vring_size(vq); i++) {
                skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
                if (!skb)
                        return -ENOMEM;

                sg_init_one(sg, skb->head, skb_end_offset(skb));
                err = virtqueue_add_inbuf(vq, sg, 1, skb, GFP_KERNEL);
                if (err) {
                        nlmsg_free(skb);
                        return err;
                }
        }
        virtqueue_kick(vq);
        return 0;
}

static void remove_vqs(struct virtio_device *vdev)
{
        int i;

        virtio_reset_device(vdev);

        for (i = 0; i < ARRAY_SIZE(hwsim_vqs); i++) {
                struct virtqueue *vq = hwsim_vqs[i];
                struct sk_buff *skb;

                while ((skb = virtqueue_detach_unused_buf(vq)))
                        nlmsg_free(skb);
        }

        vdev->config->del_vqs(vdev);
}

static int hwsim_virtio_probe(struct virtio_device *vdev)
{
        int err;
        unsigned long flags;

        spin_lock_irqsave(&hwsim_virtio_lock, flags);
        if (hwsim_virtio_enabled) {
                spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
                return -EEXIST;
        }
        spin_unlock_irqrestore(&hwsim_virtio_lock, flags);

        err = init_vqs(vdev);
        if (err)
                return err;

        virtio_device_ready(vdev);

        err = fill_vq(hwsim_vqs[HWSIM_VQ_RX]);
        if (err)
                goto out_remove;

        spin_lock_irqsave(&hwsim_virtio_lock, flags);
        hwsim_virtio_enabled = true;
        spin_unlock_irqrestore(&hwsim_virtio_lock, flags);

        schedule_work(&hwsim_virtio_rx);
        return 0;

out_remove:
        remove_vqs(vdev);
        return err;
}

static void hwsim_virtio_remove(struct virtio_device *vdev)
{
        hwsim_virtio_enabled = false;

        cancel_work_sync(&hwsim_virtio_rx);

        remove_vqs(vdev);
}

/* MAC80211_HWSIM virtio device id table */
static const struct virtio_device_id id_table[] = {
        { VIRTIO_ID_MAC80211_HWSIM, VIRTIO_DEV_ANY_ID },
        { 0 }
};
MODULE_DEVICE_TABLE(virtio, id_table);

static struct virtio_driver virtio_hwsim = {
        .driver.name = KBUILD_MODNAME,
        .id_table = id_table,
        .probe = hwsim_virtio_probe,
        .remove = hwsim_virtio_remove,
};

static int hwsim_register_virtio_driver(void)
{
        return register_virtio_driver(&virtio_hwsim);
}

static void hwsim_unregister_virtio_driver(void)
{
        unregister_virtio_driver(&virtio_hwsim);
}
#else
static inline int hwsim_register_virtio_driver(void)
{
        return 0;
}

static inline void hwsim_unregister_virtio_driver(void)
{
}
#endif

static int __init init_mac80211_hwsim(void)
{
        int i, err;

        if (radios < 0 || radios > 100)
                return -EINVAL;

        if (channels < 1)
                return -EINVAL;

        err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
        if (err)
                return err;

        err = register_pernet_device(&hwsim_net_ops);
        if (err)
                goto out_free_rht;

        err = platform_driver_register(&mac80211_hwsim_driver);
        if (err)
                goto out_unregister_pernet;

        err = hwsim_init_netlink();
        if (err)
                goto out_unregister_driver;

        err = hwsim_register_virtio_driver();
        if (err)
                goto out_exit_netlink;

        hwsim_class = class_create("mac80211_hwsim");
        if (IS_ERR(hwsim_class)) {
                err = PTR_ERR(hwsim_class);
                goto out_exit_virtio;
        }

        hwsim_init_s1g_channels(hwsim_channels_s1g);

        for (i = 0; i < radios; i++) {
                struct hwsim_new_radio_params param = { 0 };

                param.channels = channels;

                switch (regtest) {
                case HWSIM_REGTEST_DIFF_COUNTRY:
                        if (i < ARRAY_SIZE(hwsim_alpha2s))
                                param.reg_alpha2 = hwsim_alpha2s[i];
                        break;
                case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
                        if (!i)
                                param.reg_alpha2 = hwsim_alpha2s[0];
                        break;
                case HWSIM_REGTEST_STRICT_ALL:
                        param.reg_strict = true;
                        fallthrough;
                case HWSIM_REGTEST_DRIVER_REG_ALL:
                        param.reg_alpha2 = hwsim_alpha2s[0];
                        break;
                case HWSIM_REGTEST_WORLD_ROAM:
                        if (i == 0)
                                param.regd = &hwsim_world_regdom_custom_01;
                        break;
                case HWSIM_REGTEST_CUSTOM_WORLD:
                        param.regd = &hwsim_world_regdom_custom_03;
                        break;
                case HWSIM_REGTEST_CUSTOM_WORLD_2:
                        if (i == 0)
                                param.regd = &hwsim_world_regdom_custom_03;
                        else if (i == 1)
                                param.regd = &hwsim_world_regdom_custom_02;
                        break;
                case HWSIM_REGTEST_STRICT_FOLLOW:
                        if (i == 0) {
                                param.reg_strict = true;
                                param.reg_alpha2 = hwsim_alpha2s[0];
                        }
                        break;
                case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
                        if (i == 0) {
                                param.reg_strict = true;
                                param.reg_alpha2 = hwsim_alpha2s[0];
                        } else if (i == 1) {
                                param.reg_alpha2 = hwsim_alpha2s[1];
                        }
                        break;
                case HWSIM_REGTEST_ALL:
                        switch (i) {
                        case 0:
                                param.regd = &hwsim_world_regdom_custom_01;
                                break;
                        case 1:
                                param.regd = &hwsim_world_regdom_custom_02;
                                break;
                        case 2:
                                param.reg_alpha2 = hwsim_alpha2s[0];
                                break;
                        case 3:
                                param.reg_alpha2 = hwsim_alpha2s[1];
                                break;
                        case 4:
                                param.reg_strict = true;
                                param.reg_alpha2 = hwsim_alpha2s[2];
                                break;
                        }
                        break;
                default:
                        break;
                }

                param.p2p_device = support_p2p_device;
                param.mlo = mlo;
                param.multi_radio = multi_radio;
                param.use_chanctx = channels > 1 || mlo || multi_radio;
                param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
                if (param.p2p_device)
                        param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);

                err = mac80211_hwsim_new_radio(NULL, &param);
                if (err < 0)
                        goto out_free_radios;
        }

        hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
                                 hwsim_mon_setup);
        if (hwsim_mon == NULL) {
                err = -ENOMEM;
                goto out_free_radios;
        }

        rtnl_lock();
        err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
        if (err < 0) {
                rtnl_unlock();
                goto out_free_mon;
        }

        err = register_netdevice(hwsim_mon);
        if (err < 0) {
                rtnl_unlock();
                goto out_free_mon;
        }
        rtnl_unlock();

        return 0;

out_free_mon:
        free_netdev(hwsim_mon);
out_free_radios:
        mac80211_hwsim_free();
out_exit_virtio:
        hwsim_unregister_virtio_driver();
out_exit_netlink:
        hwsim_exit_netlink();
out_unregister_driver:
        platform_driver_unregister(&mac80211_hwsim_driver);
out_unregister_pernet:
        unregister_pernet_device(&hwsim_net_ops);
out_free_rht:
        rhashtable_destroy(&hwsim_radios_rht);
        return err;
}
module_init(init_mac80211_hwsim);

static void __exit exit_mac80211_hwsim(void)
{
        pr_debug("mac80211_hwsim: unregister radios\n");

        hwsim_unregister_virtio_driver();
        hwsim_exit_netlink();

        mac80211_hwsim_free();

        rhashtable_destroy(&hwsim_radios_rht);
        unregister_netdev(hwsim_mon);
        platform_driver_unregister(&mac80211_hwsim_driver);
        unregister_pernet_device(&hwsim_net_ops);
}
module_exit(exit_mac80211_hwsim);