Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 4602 insertions, 0 deletions

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
new file mode 100644
index 000000000..037358606
--- /dev/null
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -0,0 +1,4602 @@
+// 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 - 2020 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");
+
+/**
+ * enum hwsim_regtest - the type of regulatory tests we offer
+ *
+ * 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.
+ *
+ * @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.
+ */
+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[] = {
+	&hwsim_world_regdom_custom_01,
+	&hwsim_world_regdom_custom_02,
+};
+
+struct hwsim_vif_priv {
+	u32 magic;
+	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;
+};
+
+#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_simple_get(&hwsim_netgroup_ida,
+					     0, 0, 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), \
+}
+
+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 */
+};
+
+#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 *channels)
+{
+	int ch, freq;
+
+	for (ch = 0; ch < NUM_S1G_CHANS_US; ch++) {
+		freq = 902000 + (ch + 1) * 500;
+		channels[ch].band = NL80211_BAND_S1GHZ;
+		channels[ch].center_freq = KHZ_TO_MHZ(freq);
+		channels[ch].freq_offset = freq % 1000;
+		channels[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 }
+};
+
+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 spinlock_t 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 struct platform_driver mac80211_hwsim_driver = {
+	.driver = {
+		.name = "mac80211_hwsim",
+	},
+};
+
+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_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[3];
+	int n_if_limits;
+
+	u32 ciphers[ARRAY_SIZE(hwsim_ciphers)];
+
+	struct mac_address addresses[2];
+	struct ieee80211_chanctx_conf *chanctx;
+	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)];
+
+	struct ieee80211_channel *channel;
+	u64 beacon_int	/* beacon interval in us */;
+	unsigned int rx_filter;
+	bool started, idle, scanning;
+	struct mutex mutex;
+	struct hrtimer beacon_timer;
+	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;
+};
+
+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 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 hdr;
+	u8 rt_flags;
+	u8 pad;
+	__le16 rt_channel;
+	__le16 rt_chbitmask;
+} __packed;
+
+/* 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_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 },
+};
+
+#if IS_REACHABLE(CONFIG_VIRTIO)
+
+/* MAC80211_HWSIM virtio queues */
+static struct virtqueue *hwsim_vqs[HWSIM_NUM_VQS];
+static bool hwsim_virtio_enabled;
+static spinlock_t 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 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->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->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);
+
+	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 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);
+	u32 bcn_int = data->beacon_int;
+	u64 delta = abs(tsf - now);
+
+	/* 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)
+{
+	struct mac80211_hwsim_addr_match_data *md = data;
+
+	if (memcmp(mac, md->addr, ETH_ALEN) == 0)
+		md->ret = true;
+}
+
+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;
+
+	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) {
+		/* Droping 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;
+
+	if (!vif->chanctx_conf)
+		return;
+
+	if (!hwsim_chans_compat(data->channel,
+				rcu_dereference(vif->chanctx_conf)->def.chan))
+		return;
+
+	data->receive = true;
+}
+
+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_vendor_radiotap *rtap;
+
+	/*
+	 * Note that this code requires the headroom in the SKB
+	 * that was allocated earlier.
+	 */
+	rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
+	rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
+	rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
+	rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
+	rtap->subns = 127;
+
+	/*
+	 * Radiotap vendor namespaces can (and should) also be
+	 * split into fields by using the standard radiotap
+	 * presence bitmap mechanism. Use just BIT(0) here for
+	 * the presence bitmap.
+	 */
+	rtap->present = BIT(0);
+	/* We have 8 bytes of (dummy) data */
+	rtap->len = 8;
+	/* For testing, also require it to be aligned */
+	rtap->align = 8;
+	/* And also test that padding works, 4 bytes */
+	rtap->pad = 4;
+	/* push the data */
+	memcpy(rtap->data, "ABCDEFGH", 8);
+	/* make sure to clear padding, mac80211 doesn't */
+	memset(rtap->data + 8, 0, 4);
+
+	IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
+#endif
+}
+
+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 real signal strength (and optional packet loss) */
+	rx_status.signal = -50;
+	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;
+
+		memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
+
+		mac80211_hwsim_add_vendor_rtap(nskb);
+
+		data2->rx_pkts++;
+		data2->rx_bytes += nskb->len;
+		ieee80211_rx_irqsafe(data2->hw, nskb);
+	}
+	spin_unlock(&hwsim_radio_lock);
+
+	return ack;
+}
+
+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;
+	bool ack;
+	u32 _portid;
+
+	if (WARN_ON(skb->len < 10)) {
+		/* Should not happen; just a sanity check for addr1 use */
+		ieee80211_free_txskb(hw, skb);
+		return;
+	}
+
+	if (!data->use_chanctx) {
+		channel = data->channel;
+	} else if (txi->hw_queue == 4) {
+		channel = data->tmp_chan;
+	} else {
+		chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
+		if (chanctx_conf)
+			channel = chanctx_conf->def.chan;
+		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 (txi->control.vif)
+		hwsim_check_magic(txi->control.vif);
+	if (control->sta)
+		hwsim_check_sta_magic(control->sta);
+
+	if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
+		ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
+				       txi->control.rates,
+				       ARRAY_SIZE(txi->control.rates));
+
+	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)
+{
+	struct mac80211_hwsim_data *data = hw->priv;
+
+	data->started = false;
+	hrtimer_cancel(&data->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;
+}
+
+
+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 _pid = 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 (_pid || hwsim_virtio_enabled)
+		return mac80211_hwsim_tx_frame_nl(hw, skb, _pid, chan);
+
+	mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
+	dev_kfree_skb(skb);
+}
+
+static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
+				     struct ieee80211_vif *vif)
+{
+	struct mac80211_hwsim_data *data = arg;
+	struct ieee80211_hw *hw = data->hw;
+	struct ieee80211_tx_info *info;
+	struct ieee80211_rate *txrate;
+	struct ieee80211_mgmt *mgmt;
+	struct sk_buff *skb;
+	/* TODO: get MCS */
+	int bitrate = 100;
+
+	hwsim_check_magic(vif);
+
+	if (vif->type != NL80211_IFTYPE_AP &&
+	    vif->type != NL80211_IFTYPE_MESH_POINT &&
+	    vif->type != NL80211_IFTYPE_ADHOC &&
+	    vif->type != NL80211_IFTYPE_OCB)
+		return;
+
+	skb = ieee80211_beacon_get(hw, vif);
+	if (skb == NULL)
+		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(vif->chanctx_conf)->def.chan);
+
+	while ((skb = ieee80211_get_buffered_bc(hw, vif)) != NULL) {
+		mac80211_hwsim_tx_frame(hw, skb,
+				rcu_dereference(vif->chanctx_conf)->def.chan);
+	}
+
+	if (vif->csa_active && ieee80211_beacon_cntdwn_is_complete(vif))
+		ieee80211_csa_finish(vif);
+}
+
+static enum hrtimer_restart
+mac80211_hwsim_beacon(struct hrtimer *timer)
+{
+	struct mac80211_hwsim_data *data =
+		container_of(timer, struct mac80211_hwsim_data, beacon_timer);
+	struct ieee80211_hw *hw = data->hw;
+	u64 bcn_int = data->beacon_int;
+
+	if (!data->started)
+		return HRTIMER_NORESTART;
+
+	ieee80211_iterate_active_interfaces_atomic(
+		hw, IEEE80211_IFACE_ITER_NORMAL,
+		mac80211_hwsim_beacon_tx, data);
+
+	/* beacon at new TBTT + beacon interval */
+	if (data->bcn_delta) {
+		bcn_int -= data->bcn_delta;
+		data->bcn_delta = 0;
+	}
+	hrtimer_forward_now(&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",
+};
+
+static int mac80211_hwsim_config(struct ieee80211_hw *hw, 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;
+
+		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;
+	}
+	mutex_unlock(&data->mutex);
+
+	if (!data->started || !data->beacon_int)
+		hrtimer_cancel(&data->beacon_timer);
+	else if (!hrtimer_is_queued(&data->beacon_timer)) {
+		u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
+		u32 bcn_int = data->beacon_int;
+		u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
+
+		hrtimer_start(&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_bss_info_changed(struct ieee80211_hw *hw,
+					    struct ieee80211_vif *vif,
+					    struct ieee80211_bss_conf *info,
+					    u32 changed)
+{
+	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
+	struct mac80211_hwsim_data *data = hw->priv;
+
+	hwsim_check_magic(vif);
+
+	wiphy_dbg(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
+		  __func__, changed, vif->addr);
+
+	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_ASSOC) {
+		wiphy_dbg(hw->wiphy, "  ASSOC: assoc=%d aid=%d\n",
+			  info->assoc, info->aid);
+		vp->assoc = info->assoc;
+		vp->aid = info->aid;
+	}
+
+	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_is_queued(&data->beacon_timer) &&
+		    info->enable_beacon) {
+			u64 tsf, until_tbtt;
+			u32 bcn_int;
+			data->beacon_int = info->beacon_int * 1024;
+			tsf = mac80211_hwsim_get_tsf(hw, vif);
+			bcn_int = data->beacon_int;
+			until_tbtt = bcn_int - do_div(tsf, bcn_int);
+
+			hrtimer_start(&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(&data->beacon_timer);
+				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 int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
+				  struct ieee80211_vif *vif,
+				  struct ieee80211_sta *sta)
+{
+	hwsim_check_magic(vif);
+	hwsim_set_sta_magic(sta);
+
+	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 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, 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;
+}
+
+#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();
+				kfree_skb(probe);
+				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)
+{
+	struct mac80211_hwsim_data *hwsim = hw->priv;
+
+	mutex_lock(&hwsim->mutex);
+	hwsim->chanctx = ctx;
+	mutex_unlock(&hwsim->mutex);
+	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)
+{
+	struct mac80211_hwsim_data *hwsim = hw->priv;
+
+	mutex_lock(&hwsim->mutex);
+	hwsim->chanctx = NULL;
+	mutex_unlock(&hwsim->mutex);
+	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)
+{
+	struct mac80211_hwsim_data *hwsim = hw->priv;
+
+	mutex_lock(&hwsim->mutex);
+	hwsim->chanctx = ctx;
+	mutex_unlock(&hwsim->mutex);
+	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_chanctx_conf *ctx)
+{
+	hwsim_check_magic(vif);
+	hwsim_check_chanctx_magic(ctx);
+
+	return 0;
+}
+
+static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
+						struct ieee80211_vif *vif,
+						struct ieee80211_chanctx_conf *ctx)
+{
+	hwsim_check_magic(vif);
+	hwsim_check_chanctx_magic(ctx);
+}
+
+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;
+}
+
+#define HWSIM_COMMON_OPS					\
+	.tx = mac80211_hwsim_tx,				\
+	.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,	\
+	.bss_info_changed = mac80211_hwsim_bss_info_changed,	\
+	.tx_last_beacon = mac80211_hwsim_tx_last_beacon,	\
+	.sta_add = mac80211_hwsim_sta_add,			\
+	.sta_remove = mac80211_hwsim_sta_remove,		\
+	.sta_notify = mac80211_hwsim_sta_notify,		\
+	.set_tim = mac80211_hwsim_set_tim,			\
+	.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_tsf = mac80211_hwsim_get_tsf,			\
+	.set_tsf = mac80211_hwsim_set_tsf,			\
+	.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,
+
+static const struct ieee80211_ops mac80211_hwsim_ops = {
+	HWSIM_COMMON_OPS
+	.sw_scan_start = mac80211_hwsim_sw_scan,
+	.sw_scan_complete = mac80211_hwsim_sw_scan_complete,
+};
+
+static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
+	HWSIM_COMMON_OPS
+	.hw_scan = mac80211_hwsim_hw_scan,
+	.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
+	.sw_scan_start = NULL,
+	.sw_scan_complete = NULL,
+	.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,
+};
+
+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 destroy_on_close;
+	const char *hwname;
+	bool no_vif;
+	const u8 *perm_addr;
+	u32 iftypes;
+	u32 *ciphers;
+	u8 n_ciphers;
+};
+
+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->hwname) {
+		ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
+			      strlen(param->hwname), param->hwname);
+		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 he_capa_2ghz[] = {
+	{
+		/* TODO: should we support other types, e.g., P2P?*/
+		.types_mask = BIT(NL80211_IFTYPE_STATION) |
+			      BIT(NL80211_IFTYPE_AP),
+		.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_VHT_2,
+				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
+				.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),
+			},
+		},
+	},
+#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_VHT_2,
+				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
+				.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 he_capa_5ghz[] = {
+	{
+		/* TODO: should we support other types, e.g., P2P?*/
+		.types_mask = BIT(NL80211_IFTYPE_STATION) |
+			      BIT(NL80211_IFTYPE_AP),
+		.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_VHT_2,
+				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_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),
+			},
+		},
+	},
+#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_VHT_2,
+				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_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 void mac80211_hwsim_he_capab(struct ieee80211_supported_band *sband)
+{
+	u16 n_iftype_data;
+
+	if (sband->band == NL80211_BAND_2GHZ) {
+		n_iftype_data = ARRAY_SIZE(he_capa_2ghz);
+		sband->iftype_data =
+			(struct ieee80211_sband_iftype_data *)he_capa_2ghz;
+	} else if (sband->band == NL80211_BAND_5GHZ) {
+		n_iftype_data = ARRAY_SIZE(he_capa_5ghz);
+		sband->iftype_data =
+			(struct ieee80211_sband_iftype_data *)he_capa_5ghz;
+	} else {
+		return;
+	}
+
+	sband->n_iftype_data = n_iftype_data;
+}
+
+#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 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;
+
+	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->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;
+		hw->wiphy->n_addresses = 2;
+		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);
+		hw->wiphy->n_addresses = 2;
+		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 (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.radar_detect_widths = 0;
+		data->if_combination.num_different_channels = data->channels;
+		data->chanctx = NULL;
+	} else {
+		data->if_combination.num_different_channels = 1;
+		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 (!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;
+	}
+
+	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, HOST_BROADCAST_PS_BUFFERING);
+	ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
+	ieee80211_hw_set(hw, TDLS_WIDER_BW);
+	if (rctbl)
+		ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
+	ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
+
+	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;
+	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);
+
+	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_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];
+
+		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_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;
+		}
+
+		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_he_capab(sband);
+
+		hw->wiphy->bands[band] = sband;
+	}
+
+	/* 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);
+	}
+
+	if (param->no_vif)
+		ieee80211_hw_set(hw, NO_AUTO_VIF);
+
+	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
+
+	hrtimer_init(&data->beacon_timer, CLOCK_MONOTONIC,
+		     HRTIMER_MODE_ABS_SOFT);
+	data->beacon_timer.function = mac80211_hwsim_beacon;
+
+	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);
+	if (!data->use_chanctx)
+		debugfs_create_file("dfs_simulate_radar", 0222,
+				    data->debugfs,
+				    data, &hwsim_simulate_radar);
+
+	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.use_chanctx = data->use_chanctx;
+	param.regd = data->regd;
+	param.channels = data->channels;
+	param.hwname = wiphy_name(data->hw->wiphy);
+
+	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)
+{
+	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(dev->dev_addr);
+	dev->dev_addr[0] = 0x12;
+}
+
+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);
+}
+
+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 if (data2->chanctx)
+			channel = data2->chanctx->def.chan;
+	} else {
+		channel = data2->channel;
+	}
+	if (!channel)
+		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;
+	}
+
+	/* 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]) {
+		/* throw away off-channel packets, but allow both the temporary
+		 * ("hw" scan/remain-on-channel) and regular channel, since the
+		 * internal datapath also allows this
+		 */
+		mutex_lock(&data2->mutex);
+		rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
+
+		if (rx_status.freq != channel->center_freq) {
+			mutex_unlock(&data2->mutex);
+			goto out;
+		}
+		mutex_unlock(&data2->mutex);
+	} 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();
+
+	memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
+	data2->rx_pkts++;
+	data2->rx_bytes += skb->len;
+	ieee80211_rx_irqsafe(data2->hw, 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 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.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 (param.channels > CFG80211_MAX_NUM_DIFFERENT_CHANNELS) {
+		GENL_SET_ERR_MSG(info, "too many channels specified");
+		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_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;
+	}
+
+	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;
+		}
+	}
+
+	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;
+	}
+
+	ret = mac80211_hwsim_new_radio(info, &param);
+	kfree(hwname);
+	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,
+	},
+};
+
+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),
+	.mcgrps = hwsim_mcgrps,
+	.n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
+};
+
+static void remove_user_radios(u32 portid)
+{
+	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) {
+			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);
+
+	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_simple_remove(&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)))
+		nlmsg_free(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;
+	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) {
+		nlmsg_free(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))
+		nlmsg_free(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)
+{
+	vq_callback_t *callbacks[HWSIM_NUM_VQS] = {
+		[HWSIM_VQ_TX] = hwsim_virtio_tx_done,
+		[HWSIM_VQ_RX] = hwsim_virtio_rx_done,
+	};
+	const char *names[HWSIM_NUM_VQS] = {
+		[HWSIM_VQ_TX] = "tx",
+		[HWSIM_VQ_RX] = "rx",
+	};
+
+	return virtio_find_vqs(vdev, HWSIM_NUM_VQS,
+			       hwsim_vqs, callbacks, names, 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;
+
+	vdev->config->reset(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;
+
+	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,
+	.driver.owner = THIS_MODULE,
+	.id_table = id_table,
+	.probe = hwsim_virtio_probe,
+	.remove = hwsim_virtio_remove,
+};
+
+static int hwsim_register_virtio_driver(void)
+{
+	spin_lock_init(&hwsim_virtio_lock);
+
+	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;
+
+	spin_lock_init(&hwsim_radio_lock);
+
+	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(THIS_MODULE, "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_01;
+			break;
+		case HWSIM_REGTEST_CUSTOM_WORLD_2:
+			if (i == 0)
+				param.regd = &hwsim_world_regdom_custom_01;
+			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.use_chanctx = channels > 1;
+		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);