nl80211: Move capability determination into a separate file

This moves significant amount of code away from large driver_nl80211.c.

Signed-off-by: Jouni Malinen <j@w1.fi>

src/drivers/driver_nl80211.h

@@ -216,6 +216,10 @@ int nl80211_send_monitor(struct wpa_driver_nl80211_data *drv,
 			 const void *data, size_t len,
 			 int encrypt, int noack);
 
+int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv);
+struct hostapd_hw_modes *
+nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags);
+
 #ifdef ANDROID
 int android_nl_socket_set_nonblocking(struct nl_handle *handle);
 int android_genl_ctrl_resolve(struct nl_handle *handle, const char *name);

src/drivers/driver_nl80211_capa.c

@@ -0,0 +1,1432 @@
+/*
+ * Driver interaction with Linux nl80211/cfg80211 - Capabilities
+ * Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
+ * Copyright (c) 2009-2010, Atheros Communications
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+#include <netlink/genl/genl.h>
+
+#include "utils/common.h"
+#include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
+#include "common/qca-vendor.h"
+#include "common/qca-vendor-attr.h"
+#include "driver_nl80211.h"
+
+
+static int protocol_feature_handler(struct nl_msg *msg, void *arg)
+{
+	u32 *feat = arg;
+	struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+
+	nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+		  genlmsg_attrlen(gnlh, 0), NULL);
+
+	if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES])
+		*feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
+
+	return NL_SKIP;
+}
+
+
+static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv)
+{
+	u32 feat = 0;
+	struct nl_msg *msg;
+
+	msg = nlmsg_alloc();
+	if (!msg)
+		goto nla_put_failure;
+
+	nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES);
+	if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
+		return feat;
+
+	msg = NULL;
+nla_put_failure:
+	nlmsg_free(msg);
+	return 0;
+}
+
+
+struct wiphy_info_data {
+	struct wpa_driver_nl80211_data *drv;
+	struct wpa_driver_capa *capa;
+
+	unsigned int num_multichan_concurrent;
+
+	unsigned int error:1;
+	unsigned int device_ap_sme:1;
+	unsigned int poll_command_supported:1;
+	unsigned int data_tx_status:1;
+	unsigned int monitor_supported:1;
+	unsigned int auth_supported:1;
+	unsigned int connect_supported:1;
+	unsigned int p2p_go_supported:1;
+	unsigned int p2p_client_supported:1;
+	unsigned int p2p_concurrent:1;
+	unsigned int channel_switch_supported:1;
+	unsigned int set_qos_map_supported:1;
+	unsigned int have_low_prio_scan:1;
+};
+
+
+static unsigned int probe_resp_offload_support(int supp_protocols)
+{
+	unsigned int prot = 0;
+
+	if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
+		prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
+	if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
+		prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
+	if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
+		prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
+	if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
+		prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
+
+	return prot;
+}
+
+
+static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
+					 struct nlattr *tb)
+{
+	struct nlattr *nl_mode;
+	int i;
+
+	if (tb == NULL)
+		return;
+
+	nla_for_each_nested(nl_mode, tb, i) {
+		switch (nla_type(nl_mode)) {
+		case NL80211_IFTYPE_AP:
+			info->capa->flags |= WPA_DRIVER_FLAGS_AP;
+			break;
+		case NL80211_IFTYPE_MESH_POINT:
+			info->capa->flags |= WPA_DRIVER_FLAGS_MESH;
+			break;
+		case NL80211_IFTYPE_ADHOC:
+			info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
+			break;
+		case NL80211_IFTYPE_P2P_DEVICE:
+			info->capa->flags |=
+				WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
+			break;
+		case NL80211_IFTYPE_P2P_GO:
+			info->p2p_go_supported = 1;
+			break;
+		case NL80211_IFTYPE_P2P_CLIENT:
+			info->p2p_client_supported = 1;
+			break;
+		case NL80211_IFTYPE_MONITOR:
+			info->monitor_supported = 1;
+			break;
+		}
+	}
+}
+
+
+static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
+					 struct nlattr *nl_combi)
+{
+	struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
+	struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
+	struct nlattr *nl_limit, *nl_mode;
+	int err, rem_limit, rem_mode;
+	int combination_has_p2p = 0, combination_has_mgd = 0;
+	static struct nla_policy
+	iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
+		[NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
+		[NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
+		[NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
+		[NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
+		[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
+	},
+	iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
+		[NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
+		[NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
+	};
+
+	err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
+			       nl_combi, iface_combination_policy);
+	if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
+	    !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
+	    !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
+		return 0; /* broken combination */
+
+	if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
+		info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
+
+	nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
+			    rem_limit) {
+		err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
+				       nl_limit, iface_limit_policy);
+		if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
+			return 0; /* broken combination */
+
+		nla_for_each_nested(nl_mode,
+				    tb_limit[NL80211_IFACE_LIMIT_TYPES],
+				    rem_mode) {
+			int ift = nla_type(nl_mode);
+			if (ift == NL80211_IFTYPE_P2P_GO ||
+			    ift == NL80211_IFTYPE_P2P_CLIENT)
+				combination_has_p2p = 1;
+			if (ift == NL80211_IFTYPE_STATION)
+				combination_has_mgd = 1;
+		}
+		if (combination_has_p2p && combination_has_mgd)
+			break;
+	}
+
+	if (combination_has_p2p && combination_has_mgd) {
+		unsigned int num_channels =
+			nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
+
+		info->p2p_concurrent = 1;
+		if (info->num_multichan_concurrent < num_channels)
+			info->num_multichan_concurrent = num_channels;
+	}
+
+	return 0;
+}
+
+
+static void wiphy_info_iface_comb(struct wiphy_info_data *info,
+				  struct nlattr *tb)
+{
+	struct nlattr *nl_combi;
+	int rem_combi;
+
+	if (tb == NULL)
+		return;
+
+	nla_for_each_nested(nl_combi, tb, rem_combi) {
+		if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
+			break;
+	}
+}
+
+
+static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
+				 struct nlattr *tb)
+{
+	struct nlattr *nl_cmd;
+	int i;
+
+	if (tb == NULL)
+		return;
+
+	nla_for_each_nested(nl_cmd, tb, i) {
+		switch (nla_get_u32(nl_cmd)) {
+		case NL80211_CMD_AUTHENTICATE:
+			info->auth_supported = 1;
+			break;
+		case NL80211_CMD_CONNECT:
+			info->connect_supported = 1;
+			break;
+		case NL80211_CMD_START_SCHED_SCAN:
+			info->capa->sched_scan_supported = 1;
+			break;
+		case NL80211_CMD_PROBE_CLIENT:
+			info->poll_command_supported = 1;
+			break;
+		case NL80211_CMD_CHANNEL_SWITCH:
+			info->channel_switch_supported = 1;
+			break;
+		case NL80211_CMD_SET_QOS_MAP:
+			info->set_qos_map_supported = 1;
+			break;
+		}
+	}
+}
+
+
+static void wiphy_info_cipher_suites(struct wiphy_info_data *info,
+				     struct nlattr *tb)
+{
+	int i, num;
+	u32 *ciphers;
+
+	if (tb == NULL)
+		return;
+
+	num = nla_len(tb) / sizeof(u32);
+	ciphers = nla_data(tb);
+	for (i = 0; i < num; i++) {
+		u32 c = ciphers[i];
+
+		wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d",
+			   c >> 24, (c >> 16) & 0xff,
+			   (c >> 8) & 0xff, c & 0xff);
+		switch (c) {
+		case WLAN_CIPHER_SUITE_CCMP_256:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256;
+			break;
+		case WLAN_CIPHER_SUITE_GCMP_256:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256;
+			break;
+		case WLAN_CIPHER_SUITE_CCMP:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP;
+			break;
+		case WLAN_CIPHER_SUITE_GCMP:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP;
+			break;
+		case WLAN_CIPHER_SUITE_TKIP:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP;
+			break;
+		case WLAN_CIPHER_SUITE_WEP104:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104;
+			break;
+		case WLAN_CIPHER_SUITE_WEP40:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40;
+			break;
+		case WLAN_CIPHER_SUITE_AES_CMAC:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP;
+			break;
+		case WLAN_CIPHER_SUITE_BIP_GMAC_128:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128;
+			break;
+		case WLAN_CIPHER_SUITE_BIP_GMAC_256:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256;
+			break;
+		case WLAN_CIPHER_SUITE_BIP_CMAC_256:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256;
+			break;
+		case WLAN_CIPHER_SUITE_NO_GROUP_ADDR:
+			info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED;
+			break;
+		}
+	}
+}
+
+
+static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
+			       struct nlattr *tb)
+{
+	if (tb)
+		capa->max_remain_on_chan = nla_get_u32(tb);
+}
+
+
+static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
+			    struct nlattr *ext_setup)
+{
+	if (tdls == NULL)
+		return;
+
+	wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
+	capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
+
+	if (ext_setup) {
+		wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
+		capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
+	}
+}
+
+
+static void wiphy_info_feature_flags(struct wiphy_info_data *info,
+				     struct nlattr *tb)
+{
+	u32 flags;
+	struct wpa_driver_capa *capa = info->capa;
+
+	if (tb == NULL)
+		return;
+
+	flags = nla_get_u32(tb);
+
+	if (flags & NL80211_FEATURE_SK_TX_STATUS)
+		info->data_tx_status = 1;
+
+	if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
+		capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
+
+	if (flags & NL80211_FEATURE_SAE)
+		capa->flags |= WPA_DRIVER_FLAGS_SAE;
+
+	if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
+		capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
+
+	if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)
+		capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX;
+
+	if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN)
+		info->have_low_prio_scan = 1;
+
+	if (flags & NL80211_FEATURE_STATIC_SMPS)
+		capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC;
+
+	if (flags & NL80211_FEATURE_DYNAMIC_SMPS)
+		capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC;
+}
+
+
+static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
+					  struct nlattr *tb)
+{
+	u32 protocols;
+
+	if (tb == NULL)
+		return;
+
+	protocols = nla_get_u32(tb);
+	wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
+		   "mode");
+	capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
+	capa->probe_resp_offloads = probe_resp_offload_support(protocols);
+}
+
+
+static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa,
+				       struct nlattr *tb)
+{
+	struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1];
+
+	if (tb == NULL)
+		return;
+
+	if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG,
+			     tb, NULL))
+		return;
+
+	if (triggers[NL80211_WOWLAN_TRIG_ANY])
+		capa->wowlan_triggers.any = 1;
+	if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT])
+		capa->wowlan_triggers.disconnect = 1;
+	if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT])
+		capa->wowlan_triggers.magic_pkt = 1;
+	if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE])
+		capa->wowlan_triggers.gtk_rekey_failure = 1;
+	if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST])
+		capa->wowlan_triggers.eap_identity_req = 1;
+	if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE])
+		capa->wowlan_triggers.four_way_handshake = 1;
+	if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
+		capa->wowlan_triggers.rfkill_release = 1;
+}
+
+
+static int wiphy_info_handler(struct nl_msg *msg, void *arg)
+{
+	struct nlattr *tb[NL80211_ATTR_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	struct wiphy_info_data *info = arg;
+	struct wpa_driver_capa *capa = info->capa;
+	struct wpa_driver_nl80211_data *drv = info->drv;
+
+	nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+		  genlmsg_attrlen(gnlh, 0), NULL);
+
+	if (tb[NL80211_ATTR_WIPHY_NAME])
+		os_strlcpy(drv->phyname,
+			   nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
+			   sizeof(drv->phyname));
+	if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
+		capa->max_scan_ssids =
+			nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
+
+	if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
+		capa->max_sched_scan_ssids =
+			nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
+
+	if (tb[NL80211_ATTR_MAX_MATCH_SETS])
+		capa->max_match_sets =
+			nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
+
+	if (tb[NL80211_ATTR_MAC_ACL_MAX])
+		capa->max_acl_mac_addrs =
+			nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
+
+	wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
+	wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
+	wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
+	wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
+
+	if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
+		wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
+			   "off-channel TX");
+		capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
+	}
+
+	if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
+		wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
+		capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
+	}
+
+	wiphy_info_max_roc(capa,
+			   tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
+
+	if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
+		capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
+
+	wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
+			tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
+
+	if (tb[NL80211_ATTR_DEVICE_AP_SME])
+		info->device_ap_sme = 1;
+
+	wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
+	wiphy_info_probe_resp_offload(capa,
+				      tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
+
+	if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
+	    drv->extended_capa == NULL) {
+		drv->extended_capa =
+			os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
+		if (drv->extended_capa) {
+			os_memcpy(drv->extended_capa,
+				  nla_data(tb[NL80211_ATTR_EXT_CAPA]),
+				  nla_len(tb[NL80211_ATTR_EXT_CAPA]));
+			drv->extended_capa_len =
+				nla_len(tb[NL80211_ATTR_EXT_CAPA]);
+		}
+		drv->extended_capa_mask =
+			os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
+		if (drv->extended_capa_mask) {
+			os_memcpy(drv->extended_capa_mask,
+				  nla_data(tb[NL80211_ATTR_EXT_CAPA]),
+				  nla_len(tb[NL80211_ATTR_EXT_CAPA]));
+		} else {
+			os_free(drv->extended_capa);
+			drv->extended_capa = NULL;
+			drv->extended_capa_len = 0;
+		}
+	}
+
+	if (tb[NL80211_ATTR_VENDOR_DATA]) {
+		struct nlattr *nl;
+		int rem;
+
+		nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) {
+			struct nl80211_vendor_cmd_info *vinfo;
+			if (nla_len(nl) != sizeof(*vinfo)) {
+				wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
+				continue;
+			}
+			vinfo = nla_data(nl);
+			switch (vinfo->subcmd) {
+			case QCA_NL80211_VENDOR_SUBCMD_ROAMING:
+				drv->roaming_vendor_cmd_avail = 1;
+				break;
+			case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY:
+				drv->dfs_vendor_cmd_avail = 1;
+				break;
+			case QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY:
+				drv->key_mgmt_set_key_vendor_cmd_avail = 1;
+				break;
+			}
+
+			wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
+				   vinfo->vendor_id, vinfo->subcmd);
+		}
+	}
+
+	if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
+		struct nlattr *nl;
+		int rem;
+
+		nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
+			struct nl80211_vendor_cmd_info *vinfo;
+			if (nla_len(nl) != sizeof(*vinfo)) {
+				wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
+				continue;
+			}
+			vinfo = nla_data(nl);
+			if (vinfo->subcmd ==
+			    QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH)
+				drv->roam_auth_vendor_event_avail = 1;
+			wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
+				   vinfo->vendor_id, vinfo->subcmd);
+		}
+	}
+
+	wiphy_info_wowlan_triggers(capa,
+				   tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]);
+
+	if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA])
+		capa->max_stations =
+			nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]);
+
+	return NL_SKIP;
+}
+
+
+static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
+				       struct wiphy_info_data *info)
+{
+	u32 feat;
+	struct nl_msg *msg;
+
+	os_memset(info, 0, sizeof(*info));
+	info->capa = &drv->capa;
+	info->drv = drv;
+
+	msg = nlmsg_alloc();
+	if (!msg)
+		return -1;
+
+	feat = get_nl80211_protocol_features(drv);
+	if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
+		nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
+	else
+		nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
+
+	NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
+	if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
+		goto nla_put_failure;
+
+	if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
+		return -1;
+
+	if (info->auth_supported)
+		drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
+	else if (!info->connect_supported) {
+		wpa_printf(MSG_INFO, "nl80211: Driver does not support "
+			   "authentication/association or connect commands");
+		info->error = 1;
+	}
+
+	if (info->p2p_go_supported && info->p2p_client_supported)
+		drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
+	if (info->p2p_concurrent) {
+		wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
+			   "interface (driver advertised support)");
+		drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
+		drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
+	}
+	if (info->num_multichan_concurrent > 1) {
+		wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
+			   "concurrent (driver advertised support)");
+		drv->capa.num_multichan_concurrent =
+			info->num_multichan_concurrent;
+	}
+	if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
+		wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support");
+
+	/* default to 5000 since early versions of mac80211 don't set it */
+	if (!drv->capa.max_remain_on_chan)
+		drv->capa.max_remain_on_chan = 5000;
+
+	if (info->channel_switch_supported)
+		drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
+
+	return 0;
+nla_put_failure:
+	nlmsg_free(msg);
+	return -1;
+}
+
+
+static int dfs_info_handler(struct nl_msg *msg, void *arg)
+{
+	struct nlattr *tb[NL80211_ATTR_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	int *dfs_capability_ptr = arg;
+
+	nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+		  genlmsg_attrlen(gnlh, 0), NULL);
+
+	if (tb[NL80211_ATTR_VENDOR_DATA]) {
+		struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
+		struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
+
+		nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
+			  nla_data(nl_vend), nla_len(nl_vend), NULL);
+
+		if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) {
+			u32 val;
+			val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]);
+			wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u",
+				   val);
+			*dfs_capability_ptr = val;
+		}
+	}
+
+	return NL_SKIP;
+}
+
+
+static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv)
+{
+	struct nl_msg *msg;
+	int dfs_capability = 0;
+	int ret;
+
+	if (!drv->dfs_vendor_cmd_avail)
+		return;
+
+
+	msg = nlmsg_alloc();
+	if (!msg)
+		return;
+
+	nl80211_cmd(drv, msg, 0, NL80211_CMD_VENDOR);
+
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+	NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA);
+	NLA_PUT_U32(msg, NL80211_ATTR_VENDOR_SUBCMD,
+		    QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY);
+
+	ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability);
+	if (!ret && dfs_capability)
+		drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD;
+	msg = NULL;
+
+ nla_put_failure:
+	nlmsg_free(msg);
+}
+
+
+int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
+{
+	struct wiphy_info_data info;
+	if (wpa_driver_nl80211_get_info(drv, &info))
+		return -1;
+
+	if (info.error)
+		return -1;
+
+	drv->has_capability = 1;
+	drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
+		WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
+		WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
+		WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
+	drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
+		WPA_DRIVER_AUTH_SHARED |
+		WPA_DRIVER_AUTH_LEAP;
+
+	drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
+	drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
+	drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
+
+	/*
+	 * As all cfg80211 drivers must support cases where the AP interface is
+	 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in
+	 * case that the user space daemon has crashed, they must be able to
+	 * cleanup all stations and key entries in the AP tear down flow. Thus,
+	 * this flag can/should always be set for cfg80211 drivers.
+	 */
+	drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT;
+
+	if (!info.device_ap_sme) {
+		drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
+
+		/*
+		 * No AP SME is currently assumed to also indicate no AP MLME
+		 * in the driver/firmware.
+		 */
+		drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
+	}
+
+	drv->device_ap_sme = info.device_ap_sme;
+	drv->poll_command_supported = info.poll_command_supported;
+	drv->data_tx_status = info.data_tx_status;
+	if (info.set_qos_map_supported)
+		drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
+	drv->have_low_prio_scan = info.have_low_prio_scan;
+
+	/*
+	 * If poll command and tx status are supported, mac80211 is new enough
+	 * to have everything we need to not need monitor interfaces.
+	 */
+	drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
+
+	if (drv->device_ap_sme && drv->use_monitor) {
+		/*
+		 * Non-mac80211 drivers may not support monitor interface.
+		 * Make sure we do not get stuck with incorrect capability here
+		 * by explicitly testing this.
+		 */
+		if (!info.monitor_supported) {
+			wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
+				   "with device_ap_sme since no monitor mode "
+				   "support detected");
+			drv->use_monitor = 0;
+		}
+	}
+
+	/*
+	 * If we aren't going to use monitor interfaces, but the
+	 * driver doesn't support data TX status, we won't get TX
+	 * status for EAPOL frames.
+	 */
+	if (!drv->use_monitor && !info.data_tx_status)
+		drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
+
+	qca_nl80211_check_dfs_capa(drv);
+
+	return 0;
+}
+
+
+struct phy_info_arg {
+	u16 *num_modes;
+	struct hostapd_hw_modes *modes;
+	int last_mode, last_chan_idx;
+};
+
+static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
+			     struct nlattr *ampdu_factor,
+			     struct nlattr *ampdu_density,
+			     struct nlattr *mcs_set)
+{
+	if (capa)
+		mode->ht_capab = nla_get_u16(capa);
+
+	if (ampdu_factor)
+		mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
+
+	if (ampdu_density)
+		mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
+
+	if (mcs_set && nla_len(mcs_set) >= 16) {
+		u8 *mcs;
+		mcs = nla_data(mcs_set);
+		os_memcpy(mode->mcs_set, mcs, 16);
+	}
+}
+
+
+static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
+			      struct nlattr *capa,
+			      struct nlattr *mcs_set)
+{
+	if (capa)
+		mode->vht_capab = nla_get_u32(capa);
+
+	if (mcs_set && nla_len(mcs_set) >= 8) {
+		u8 *mcs;
+		mcs = nla_data(mcs_set);
+		os_memcpy(mode->vht_mcs_set, mcs, 8);
+	}
+}
+
+
+static void phy_info_freq(struct hostapd_hw_modes *mode,
+			  struct hostapd_channel_data *chan,
+			  struct nlattr *tb_freq[])
+{
+	u8 channel;
+	chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
+	chan->flag = 0;
+	chan->dfs_cac_ms = 0;
+	if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
+		chan->chan = channel;
+
+	if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
+		chan->flag |= HOSTAPD_CHAN_DISABLED;
+	if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
+		chan->flag |= HOSTAPD_CHAN_NO_IR;
+	if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
+		chan->flag |= HOSTAPD_CHAN_RADAR;
+	if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY])
+		chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY;
+	if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
+		chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
+
+	if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
+		enum nl80211_dfs_state state =
+			nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
+
+		switch (state) {
+		case NL80211_DFS_USABLE:
+			chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
+			break;
+		case NL80211_DFS_AVAILABLE:
+			chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
+			break;
+		case NL80211_DFS_UNAVAILABLE:
+			chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
+			break;
+		}
+	}
+
+	if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) {
+		chan->dfs_cac_ms = nla_get_u32(
+			tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]);
+	}
+}
+
+
+static int phy_info_freqs(struct phy_info_arg *phy_info,
+			  struct hostapd_hw_modes *mode, struct nlattr *tb)
+{
+	static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
+		[NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
+		[NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
+		[NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
+		[NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
+		[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
+		[NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
+	};
+	int new_channels = 0;
+	struct hostapd_channel_data *channel;
+	struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
+	struct nlattr *nl_freq;
+	int rem_freq, idx;
+
+	if (tb == NULL)
+		return NL_OK;
+
+	nla_for_each_nested(nl_freq, tb, rem_freq) {
+		nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
+			  nla_data(nl_freq), nla_len(nl_freq), freq_policy);
+		if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
+			continue;
+		new_channels++;
+	}
+
+	channel = os_realloc_array(mode->channels,
+				   mode->num_channels + new_channels,
+				   sizeof(struct hostapd_channel_data));
+	if (!channel)
+		return NL_SKIP;
+
+	mode->channels = channel;
+	mode->num_channels += new_channels;
+
+	idx = phy_info->last_chan_idx;
+
+	nla_for_each_nested(nl_freq, tb, rem_freq) {
+		nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
+			  nla_data(nl_freq), nla_len(nl_freq), freq_policy);
+		if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
+			continue;
+		phy_info_freq(mode, &mode->channels[idx], tb_freq);
+		idx++;
+	}
+	phy_info->last_chan_idx = idx;
+
+	return NL_OK;
+}
+
+
+static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
+{
+	static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
+		[NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
+		[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
+		{ .type = NLA_FLAG },
+	};
+	struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
+	struct nlattr *nl_rate;
+	int rem_rate, idx;
+
+	if (tb == NULL)
+		return NL_OK;
+
+	nla_for_each_nested(nl_rate, tb, rem_rate) {
+		nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
+			  nla_data(nl_rate), nla_len(nl_rate),
+			  rate_policy);
+		if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
+			continue;
+		mode->num_rates++;
+	}
+
+	mode->rates = os_calloc(mode->num_rates, sizeof(int));
+	if (!mode->rates)
+		return NL_SKIP;
+
+	idx = 0;
+
+	nla_for_each_nested(nl_rate, tb, rem_rate) {
+		nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
+			  nla_data(nl_rate), nla_len(nl_rate),
+			  rate_policy);
+		if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
+			continue;
+		mode->rates[idx] = nla_get_u32(
+			tb_rate[NL80211_BITRATE_ATTR_RATE]);
+		idx++;
+	}
+
+	return NL_OK;
+}
+
+
+static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
+{
+	struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
+	struct hostapd_hw_modes *mode;
+	int ret;
+
+	if (phy_info->last_mode != nl_band->nla_type) {
+		mode = os_realloc_array(phy_info->modes,
+					*phy_info->num_modes + 1,
+					sizeof(*mode));
+		if (!mode)
+			return NL_SKIP;
+		phy_info->modes = mode;
+
+		mode = &phy_info->modes[*(phy_info->num_modes)];
+		os_memset(mode, 0, sizeof(*mode));
+		mode->mode = NUM_HOSTAPD_MODES;
+		mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
+			HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
+
+		/*
+		 * Unsupported VHT MCS stream is defined as value 3, so the VHT
+		 * MCS RX/TX map must be initialized with 0xffff to mark all 8
+		 * possible streams as unsupported. This will be overridden if
+		 * driver advertises VHT support.
+		 */
+		mode->vht_mcs_set[0] = 0xff;
+		mode->vht_mcs_set[1] = 0xff;
+		mode->vht_mcs_set[4] = 0xff;
+		mode->vht_mcs_set[5] = 0xff;
+
+		*(phy_info->num_modes) += 1;
+		phy_info->last_mode = nl_band->nla_type;
+		phy_info->last_chan_idx = 0;
+	} else
+		mode = &phy_info->modes[*(phy_info->num_modes) - 1];
+
+	nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
+		  nla_len(nl_band), NULL);
+
+	phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
+			 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
+			 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
+			 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
+	phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
+			  tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
+	ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
+	if (ret != NL_OK)
+		return ret;
+	ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
+	if (ret != NL_OK)
+		return ret;
+
+	return NL_OK;
+}
+
+
+static int phy_info_handler(struct nl_msg *msg, void *arg)
+{
+	struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	struct phy_info_arg *phy_info = arg;
+	struct nlattr *nl_band;
+	int rem_band;
+
+	nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+		  genlmsg_attrlen(gnlh, 0), NULL);
+
+	if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
+		return NL_SKIP;
+
+	nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
+	{
+		int res = phy_info_band(phy_info, nl_band);
+		if (res != NL_OK)
+			return res;
+	}
+
+	return NL_SKIP;
+}
+
+
+static struct hostapd_hw_modes *
+wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
+				     u16 *num_modes)
+{
+	u16 m;
+	struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
+	int i, mode11g_idx = -1;
+
+	/* heuristic to set up modes */
+	for (m = 0; m < *num_modes; m++) {
+		if (!modes[m].num_channels)
+			continue;
+		if (modes[m].channels[0].freq < 4000) {
+			modes[m].mode = HOSTAPD_MODE_IEEE80211B;
+			for (i = 0; i < modes[m].num_rates; i++) {
+				if (modes[m].rates[i] > 200) {
+					modes[m].mode = HOSTAPD_MODE_IEEE80211G;
+					break;
+				}
+			}
+		} else if (modes[m].channels[0].freq > 50000)
+			modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
+		else
+			modes[m].mode = HOSTAPD_MODE_IEEE80211A;
+	}
+
+	/* If only 802.11g mode is included, use it to construct matching
+	 * 802.11b mode data. */
+
+	for (m = 0; m < *num_modes; m++) {
+		if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
+			return modes; /* 802.11b already included */
+		if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
+			mode11g_idx = m;
+	}
+
+	if (mode11g_idx < 0)
+		return modes; /* 2.4 GHz band not supported at all */
+
+	nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
+	if (nmodes == NULL)
+		return modes; /* Could not add 802.11b mode */
+
+	mode = &nmodes[*num_modes];
+	os_memset(mode, 0, sizeof(*mode));
+	(*num_modes)++;
+	modes = nmodes;
+
+	mode->mode = HOSTAPD_MODE_IEEE80211B;
+
+	mode11g = &modes[mode11g_idx];
+	mode->num_channels = mode11g->num_channels;
+	mode->channels = os_malloc(mode11g->num_channels *
+				   sizeof(struct hostapd_channel_data));
+	if (mode->channels == NULL) {
+		(*num_modes)--;
+		return modes; /* Could not add 802.11b mode */
+	}
+	os_memcpy(mode->channels, mode11g->channels,
+		  mode11g->num_channels * sizeof(struct hostapd_channel_data));
+
+	mode->num_rates = 0;
+	mode->rates = os_malloc(4 * sizeof(int));
+	if (mode->rates == NULL) {
+		os_free(mode->channels);
+		(*num_modes)--;
+		return modes; /* Could not add 802.11b mode */
+	}
+
+	for (i = 0; i < mode11g->num_rates; i++) {
+		if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
+		    mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
+			continue;
+		mode->rates[mode->num_rates] = mode11g->rates[i];
+		mode->num_rates++;
+		if (mode->num_rates == 4)
+			break;
+	}
+
+	if (mode->num_rates == 0) {
+		os_free(mode->channels);
+		os_free(mode->rates);
+		(*num_modes)--;
+		return modes; /* No 802.11b rates */
+	}
+
+	wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
+		   "information");
+
+	return modes;
+}
+
+
+static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
+				  int end)
+{
+	int c;
+
+	for (c = 0; c < mode->num_channels; c++) {
+		struct hostapd_channel_data *chan = &mode->channels[c];
+		if (chan->freq - 10 >= start && chan->freq + 10 <= end)
+			chan->flag |= HOSTAPD_CHAN_HT40;
+	}
+}
+
+
+static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
+				      int end)
+{
+	int c;
+
+	for (c = 0; c < mode->num_channels; c++) {
+		struct hostapd_channel_data *chan = &mode->channels[c];
+		if (!(chan->flag & HOSTAPD_CHAN_HT40))
+			continue;
+		if (chan->freq - 30 >= start && chan->freq - 10 <= end)
+			chan->flag |= HOSTAPD_CHAN_HT40MINUS;
+		if (chan->freq + 10 >= start && chan->freq + 30 <= end)
+			chan->flag |= HOSTAPD_CHAN_HT40PLUS;
+	}
+}
+
+
+static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
+				      struct phy_info_arg *results)
+{
+	u16 m;
+
+	for (m = 0; m < *results->num_modes; m++) {
+		int c;
+		struct hostapd_hw_modes *mode = &results->modes[m];
+
+		for (c = 0; c < mode->num_channels; c++) {
+			struct hostapd_channel_data *chan = &mode->channels[c];
+			if ((u32) chan->freq - 10 >= start &&
+			    (u32) chan->freq + 10 <= end)
+				chan->max_tx_power = max_eirp;
+		}
+	}
+}
+
+
+static void nl80211_reg_rule_ht40(u32 start, u32 end,
+				  struct phy_info_arg *results)
+{
+	u16 m;
+
+	for (m = 0; m < *results->num_modes; m++) {
+		if (!(results->modes[m].ht_capab &
+		      HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
+			continue;
+		nl80211_set_ht40_mode(&results->modes[m], start, end);
+	}
+}
+
+
+static void nl80211_reg_rule_sec(struct nlattr *tb[],
+				 struct phy_info_arg *results)
+{
+	u32 start, end, max_bw;
+	u16 m;
+
+	if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
+	    tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
+	    tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
+		return;
+
+	start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
+	end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
+	max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
+
+	if (max_bw < 20)
+		return;
+
+	for (m = 0; m < *results->num_modes; m++) {
+		if (!(results->modes[m].ht_capab &
+		      HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
+			continue;
+		nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
+	}
+}
+
+
+static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
+				 int end)
+{
+	int c;
+
+	for (c = 0; c < mode->num_channels; c++) {
+		struct hostapd_channel_data *chan = &mode->channels[c];
+		if (chan->freq - 10 >= start && chan->freq + 70 <= end)
+			chan->flag |= HOSTAPD_CHAN_VHT_10_70;
+
+		if (chan->freq - 30 >= start && chan->freq + 50 <= end)
+			chan->flag |= HOSTAPD_CHAN_VHT_30_50;
+
+		if (chan->freq - 50 >= start && chan->freq + 30 <= end)
+			chan->flag |= HOSTAPD_CHAN_VHT_50_30;
+
+		if (chan->freq - 70 >= start && chan->freq + 10 <= end)
+			chan->flag |= HOSTAPD_CHAN_VHT_70_10;
+	}
+}
+
+
+static void nl80211_reg_rule_vht(struct nlattr *tb[],
+				 struct phy_info_arg *results)
+{
+	u32 start, end, max_bw;
+	u16 m;
+
+	if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
+	    tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
+	    tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
+		return;
+
+	start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
+	end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
+	max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
+
+	if (max_bw < 80)
+		return;
+
+	for (m = 0; m < *results->num_modes; m++) {
+		if (!(results->modes[m].ht_capab &
+		      HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
+			continue;
+		/* TODO: use a real VHT support indication */
+		if (!results->modes[m].vht_capab)
+			continue;
+
+		nl80211_set_vht_mode(&results->modes[m], start, end);
+	}
+}
+
+
+static const char * dfs_domain_name(enum nl80211_dfs_regions region)
+{
+	switch (region) {
+	case NL80211_DFS_UNSET:
+		return "DFS-UNSET";
+	case NL80211_DFS_FCC:
+		return "DFS-FCC";
+	case NL80211_DFS_ETSI:
+		return "DFS-ETSI";
+	case NL80211_DFS_JP:
+		return "DFS-JP";
+	default:
+		return "DFS-invalid";
+	}
+}
+
+
+static int nl80211_get_reg(struct nl_msg *msg, void *arg)
+{
+	struct phy_info_arg *results = arg;
+	struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	struct nlattr *nl_rule;
+	struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
+	int rem_rule;
+	static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
+		[NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
+		[NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
+		[NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
+		[NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
+		[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
+		[NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
+	};
+
+	nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+		  genlmsg_attrlen(gnlh, 0), NULL);
+	if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
+	    !tb_msg[NL80211_ATTR_REG_RULES]) {
+		wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
+			   "available");
+		return NL_SKIP;
+	}
+
+	if (tb_msg[NL80211_ATTR_DFS_REGION]) {
+		enum nl80211_dfs_regions dfs_domain;
+		dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
+		wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
+			   (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
+			   dfs_domain_name(dfs_domain));
+	} else {
+		wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
+			   (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
+	}
+
+	nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
+	{
+		u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
+		nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
+			  nla_data(nl_rule), nla_len(nl_rule), reg_policy);
+		if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
+		    tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
+			continue;
+		start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
+		end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
+		if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
+			max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
+		if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
+			max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
+		if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
+			flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
+
+		wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
+			   start, end, max_bw, max_eirp,
+			   flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
+			   flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
+			   flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
+			   flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
+			   "",
+			   flags & NL80211_RRF_DFS ? " (DFS)" : "",
+			   flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
+			   flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
+			   flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
+		if (max_bw >= 40)
+			nl80211_reg_rule_ht40(start, end, results);
+		if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
+			nl80211_reg_rule_max_eirp(start, end, max_eirp,
+						  results);
+	}
+
+	nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
+	{
+		nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
+			  nla_data(nl_rule), nla_len(nl_rule), reg_policy);
+		nl80211_reg_rule_sec(tb_rule, results);
+	}
+
+	nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
+	{
+		nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
+			  nla_data(nl_rule), nla_len(nl_rule), reg_policy);
+		nl80211_reg_rule_vht(tb_rule, results);
+	}
+
+	return NL_SKIP;
+}
+
+
+static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
+					struct phy_info_arg *results)
+{
+	struct nl_msg *msg;
+
+	msg = nlmsg_alloc();
+	if (!msg)
+		return -ENOMEM;
+
+	nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
+	return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
+}
+
+
+struct hostapd_hw_modes *
+nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
+{
+	u32 feat;
+	struct i802_bss *bss = priv;
+	struct wpa_driver_nl80211_data *drv = bss->drv;
+	struct nl_msg *msg;
+	struct phy_info_arg result = {
+		.num_modes = num_modes,
+		.modes = NULL,
+		.last_mode = -1,
+	};
+
+	*num_modes = 0;
+	*flags = 0;
+
+	msg = nlmsg_alloc();
+	if (!msg)
+		return NULL;
+
+	feat = get_nl80211_protocol_features(drv);
+	if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
+		nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
+	else
+		nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
+
+	NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
+	if (nl80211_set_iface_id(msg, bss) < 0)
+		goto nla_put_failure;
+
+	if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
+		nl80211_set_regulatory_flags(drv, &result);
+		return wpa_driver_nl80211_postprocess_modes(result.modes,
+							    num_modes);
+	}
+	msg = NULL;
+ nla_put_failure:
+	nlmsg_free(msg);
+	return NULL;
+}

src/drivers/drivers.mak

@@ -25,6 +25,7 @@ endif
 ifdef CONFIG_DRIVER_NL80211
 DRV_CFLAGS += -DCONFIG_DRIVER_NL80211
 DRV_OBJS += ../src/drivers/driver_nl80211.o
+DRV_OBJS += ../src/drivers/driver_nl80211_capa.o
 DRV_OBJS += ../src/drivers/driver_nl80211_monitor.o
 DRV_OBJS += ../src/utils/radiotap.o
 NEED_SME=y

src/drivers/drivers.mk

@@ -21,6 +21,7 @@ ifdef CONFIG_DRIVER_NL80211
 DRV_CFLAGS += -DCONFIG_DRIVER_NL80211
 DRV_OBJS += src/drivers/driver_nl80211.c
 DRV_OBJS += src/drivers/driver_nl80211_android.c
+DRV_OBJS += src/drivers/driver_nl80211_capa.c
 DRV_OBJS += src/drivers/driver_nl80211_monitor.c
 DRV_OBJS += src/utils/radiotap.c
 NEED_SME=y