hostapd/ctrl_iface.c

/*
 * hostapd / UNIX domain socket -based control interface
 * Copyright (c) 2004-2018, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "utils/includes.h"

#ifndef CONFIG_NATIVE_WINDOWS

#ifdef CONFIG_TESTING_OPTIONS
#ifdef __NetBSD__
#include <net/if_ether.h>
#else
#include <net/ethernet.h>
#endif
#include <netinet/ip.h>
#endif /* CONFIG_TESTING_OPTIONS */

#include <sys/un.h>
#include <sys/stat.h>
#include <stddef.h>

#ifdef CONFIG_CTRL_IFACE_UDP
#include <netdb.h>
#endif /* CONFIG_CTRL_IFACE_UDP */

#include "utils/common.h"
#include "utils/eloop.h"
#include "utils/module_tests.h"
#include "common/version.h"
#include "common/ieee802_11_defs.h"
#include "common/ctrl_iface_common.h"
#ifdef CONFIG_DPP
#include "common/dpp.h"
#endif /* CONFIG_DPP */
#include "common/wpa_ctrl.h"
#include "crypto/tls.h"
#include "drivers/driver.h"
#include "eapol_auth/eapol_auth_sm.h"
#include "radius/radius_client.h"
#include "radius/radius_server.h"
#include "l2_packet/l2_packet.h"
#include "ap/hostapd.h"
#include "ap/ap_config.h"
#include "ap/ieee802_1x.h"
#include "ap/wpa_auth.h"
#include "ap/ieee802_11.h"
#include "ap/sta_info.h"
#include "ap/wps_hostapd.h"
#include "ap/ctrl_iface_ap.h"
#include "ap/ap_drv_ops.h"
#include "ap/hs20.h"
#include "ap/wnm_ap.h"
#include "ap/wpa_auth.h"
#include "ap/beacon.h"
#include "ap/neighbor_db.h"
#include "ap/rrm.h"
#include "ap/dpp_hostapd.h"
#include "ap/dfs.h"
#include "wps/wps_defs.h"
#include "wps/wps.h"
#include "fst/fst_ctrl_iface.h"
#include "config_file.h"
#include "ctrl_iface.h"


#define HOSTAPD_CLI_DUP_VALUE_MAX_LEN 256

#ifdef CONFIG_CTRL_IFACE_UDP
#define HOSTAPD_CTRL_IFACE_PORT		8877
#define HOSTAPD_CTRL_IFACE_PORT_LIMIT	50
#define HOSTAPD_GLOBAL_CTRL_IFACE_PORT		8878
#define HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT	50
#endif /* CONFIG_CTRL_IFACE_UDP */

static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
				    enum wpa_msg_type type,
				    const char *buf, size_t len);


static int hostapd_ctrl_iface_attach(struct hostapd_data *hapd,
				     struct sockaddr_storage *from,
				     socklen_t fromlen, const char *input)
{
	return ctrl_iface_attach(&hapd->ctrl_dst, from, fromlen, input);
}


static int hostapd_ctrl_iface_detach(struct hostapd_data *hapd,
				     struct sockaddr_storage *from,
				     socklen_t fromlen)
{
	return ctrl_iface_detach(&hapd->ctrl_dst, from, fromlen);
}


static int hostapd_ctrl_iface_level(struct hostapd_data *hapd,
				    struct sockaddr_storage *from,
				    socklen_t fromlen,
				    char *level)
{
	return ctrl_iface_level(&hapd->ctrl_dst, from, fromlen, level);
}


static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd,
				      const char *txtaddr)
{
	u8 addr[ETH_ALEN];
	struct sta_info *sta;

	wpa_printf(MSG_DEBUG, "CTRL_IFACE NEW_STA %s", txtaddr);

	if (hwaddr_aton(txtaddr, addr))
		return -1;

	sta = ap_get_sta(hapd, addr);
	if (sta)
		return 0;

	wpa_printf(MSG_DEBUG, "Add new STA " MACSTR " based on ctrl_iface "
		   "notification", MAC2STR(addr));
	sta = ap_sta_add(hapd, addr);
	if (sta == NULL)
		return -1;

	hostapd_new_assoc_sta(hapd, sta, 0);
	return 0;
}


#ifdef NEED_AP_MLME
static int hostapd_ctrl_iface_sa_query(struct hostapd_data *hapd,
				       const char *txtaddr)
{
	u8 addr[ETH_ALEN];
	u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];

	wpa_printf(MSG_DEBUG, "CTRL_IFACE SA_QUERY %s", txtaddr);

	if (hwaddr_aton(txtaddr, addr) ||
	    os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0)
		return -1;

	ieee802_11_send_sa_query_req(hapd, addr, trans_id);

	return 0;
}
#endif /* NEED_AP_MLME */


#ifdef CONFIG_WPS
static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt)
{
	char *pin = os_strchr(txt, ' ');
	char *timeout_txt;
	int timeout;
	u8 addr_buf[ETH_ALEN], *addr = NULL;
	char *pos;

	if (pin == NULL)
		return -1;
	*pin++ = '\0';

	timeout_txt = os_strchr(pin, ' ');
	if (timeout_txt) {
		*timeout_txt++ = '\0';
		timeout = atoi(timeout_txt);
		pos = os_strchr(timeout_txt, ' ');
		if (pos) {
			*pos++ = '\0';
			if (hwaddr_aton(pos, addr_buf) == 0)
				addr = addr_buf;
		}
	} else
		timeout = 0;

	return hostapd_wps_add_pin(hapd, addr, txt, pin, timeout);
}


static int hostapd_ctrl_iface_wps_check_pin(
	struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen)
{
	char pin[9];
	size_t len;
	char *pos;
	int ret;

	wpa_hexdump_ascii_key(MSG_DEBUG, "WPS_CHECK_PIN",
			      (u8 *) cmd, os_strlen(cmd));
	for (pos = cmd, len = 0; *pos != '\0'; pos++) {
		if (*pos < '0' || *pos > '9')
			continue;
		pin[len++] = *pos;
		if (len == 9) {
			wpa_printf(MSG_DEBUG, "WPS: Too long PIN");
			return -1;
		}
	}
	if (len != 4 && len != 8) {
		wpa_printf(MSG_DEBUG, "WPS: Invalid PIN length %d", (int) len);
		return -1;
	}
	pin[len] = '\0';

	if (len == 8) {
		unsigned int pin_val;
		pin_val = atoi(pin);
		if (!wps_pin_valid(pin_val)) {
			wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit");
			ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n");
			if (os_snprintf_error(buflen, ret))
				return -1;
			return ret;
		}
	}

	ret = os_snprintf(buf, buflen, "%s", pin);
	if (os_snprintf_error(buflen, ret))
		return -1;

	return ret;
}


#ifdef CONFIG_WPS_NFC
static int hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data *hapd,
					       char *pos)
{
	size_t len;
	struct wpabuf *buf;
	int ret;

	len = os_strlen(pos);
	if (len & 0x01)
		return -1;
	len /= 2;

	buf = wpabuf_alloc(len);
	if (buf == NULL)
		return -1;
	if (hexstr2bin(pos, wpabuf_put(buf, len), len) < 0) {
		wpabuf_free(buf);
		return -1;
	}

	ret = hostapd_wps_nfc_tag_read(hapd, buf);
	wpabuf_free(buf);

	return ret;
}


static int hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data *hapd,
						   char *cmd, char *reply,
						   size_t max_len)
{
	int ndef;
	struct wpabuf *buf;
	int res;

	if (os_strcmp(cmd, "WPS") == 0)
		ndef = 0;
	else if (os_strcmp(cmd, "NDEF") == 0)
		ndef = 1;
	else
		return -1;

	buf = hostapd_wps_nfc_config_token(hapd, ndef);
	if (buf == NULL)
		return -1;

	res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
					 wpabuf_len(buf));
	reply[res++] = '\n';
	reply[res] = '\0';

	wpabuf_free(buf);

	return res;
}


static int hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data *hapd,
						char *reply, size_t max_len,
						int ndef)
{
	struct wpabuf *buf;
	int res;

	buf = hostapd_wps_nfc_token_gen(hapd, ndef);
	if (buf == NULL)
		return -1;

	res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
					 wpabuf_len(buf));
	reply[res++] = '\n';
	reply[res] = '\0';

	wpabuf_free(buf);

	return res;
}


static int hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data *hapd,
					    char *cmd, char *reply,
					    size_t max_len)
{
	if (os_strcmp(cmd, "WPS") == 0)
		return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
							    max_len, 0);

	if (os_strcmp(cmd, "NDEF") == 0)
		return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
							    max_len, 1);

	if (os_strcmp(cmd, "enable") == 0)
		return hostapd_wps_nfc_token_enable(hapd);

	if (os_strcmp(cmd, "disable") == 0) {
		hostapd_wps_nfc_token_disable(hapd);
		return 0;
	}

	return -1;
}


static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd,
						   char *cmd, char *reply,
						   size_t max_len)
{
	struct wpabuf *buf;
	int res;
	char *pos;
	int ndef;

	pos = os_strchr(cmd, ' ');
	if (pos == NULL)
		return -1;
	*pos++ = '\0';

	if (os_strcmp(cmd, "WPS") == 0)
		ndef = 0;
	else if (os_strcmp(cmd, "NDEF") == 0)
		ndef = 1;
	else
		return -1;

	if (os_strcmp(pos, "WPS-CR") == 0)
		buf = hostapd_wps_nfc_hs_cr(hapd, ndef);
	else
		buf = NULL;
	if (buf == NULL)
		return -1;

	res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
					 wpabuf_len(buf));
	reply[res++] = '\n';
	reply[res] = '\0';

	wpabuf_free(buf);

	return res;
}


static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd,
						  char *cmd)
{
	size_t len;
	struct wpabuf *req, *sel;
	int ret;
	char *pos, *role, *type, *pos2;

	role = cmd;
	pos = os_strchr(role, ' ');
	if (pos == NULL)
		return -1;
	*pos++ = '\0';

	type = pos;
	pos = os_strchr(type, ' ');
	if (pos == NULL)
		return -1;
	*pos++ = '\0';

	pos2 = os_strchr(pos, ' ');
	if (pos2 == NULL)
		return -1;
	*pos2++ = '\0';

	len = os_strlen(pos);
	if (len & 0x01)
		return -1;
	len /= 2;

	req = wpabuf_alloc(len);
	if (req == NULL)
		return -1;
	if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) {
		wpabuf_free(req);
		return -1;
	}

	len = os_strlen(pos2);
	if (len & 0x01) {
		wpabuf_free(req);
		return -1;
	}
	len /= 2;

	sel = wpabuf_alloc(len);
	if (sel == NULL) {
		wpabuf_free(req);
		return -1;
	}
	if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) {
		wpabuf_free(req);
		wpabuf_free(sel);
		return -1;
	}

	if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0) {
		ret = hostapd_wps_nfc_report_handover(hapd, req, sel);
	} else {
		wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover "
			   "reported: role=%s type=%s", role, type);
		ret = -1;
	}
	wpabuf_free(req);
	wpabuf_free(sel);

	return ret;
}

#endif /* CONFIG_WPS_NFC */


static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt,
					 char *buf, size_t buflen)
{
	int timeout = 300;
	char *pos;
	const char *pin_txt;

	pos = os_strchr(txt, ' ');
	if (pos)
		*pos++ = '\0';

	if (os_strcmp(txt, "disable") == 0) {
		hostapd_wps_ap_pin_disable(hapd);
		return os_snprintf(buf, buflen, "OK\n");
	}

	if (os_strcmp(txt, "random") == 0) {
		if (pos)
			timeout = atoi(pos);
		pin_txt = hostapd_wps_ap_pin_random(hapd, timeout);
		if (pin_txt == NULL)
			return -1;
		return os_snprintf(buf, buflen, "%s", pin_txt);
	}

	if (os_strcmp(txt, "get") == 0) {
		pin_txt = hostapd_wps_ap_pin_get(hapd);
		if (pin_txt == NULL)
			return -1;
		return os_snprintf(buf, buflen, "%s", pin_txt);
	}

	if (os_strcmp(txt, "set") == 0) {
		char *pin;
		if (pos == NULL)
			return -1;
		pin = pos;
		pos = os_strchr(pos, ' ');
		if (pos) {
			*pos++ = '\0';
			timeout = atoi(pos);
		}
		if (os_strlen(pin) > buflen)
			return -1;
		if (hostapd_wps_ap_pin_set(hapd, pin, timeout) < 0)
			return -1;
		return os_snprintf(buf, buflen, "%s", pin);
	}

	return -1;
}


static int hostapd_ctrl_iface_wps_config(struct hostapd_data *hapd, char *txt)
{
	char *pos;
	char *ssid, *auth, *encr = NULL, *key = NULL;

	ssid = txt;
	pos = os_strchr(txt, ' ');
	if (!pos)
		return -1;
	*pos++ = '\0';

	auth = pos;
	pos = os_strchr(pos, ' ');
	if (pos) {
		*pos++ = '\0';
		encr = pos;
		pos = os_strchr(pos, ' ');
		if (pos) {
			*pos++ = '\0';
			key = pos;
		}
	}

	return hostapd_wps_config_ap(hapd, ssid, auth, encr, key);
}


static const char * pbc_status_str(enum pbc_status status)
{
	switch (status) {
	case WPS_PBC_STATUS_DISABLE:
		return "Disabled";
	case WPS_PBC_STATUS_ACTIVE:
		return "Active";
	case WPS_PBC_STATUS_TIMEOUT:
		return "Timed-out";
	case WPS_PBC_STATUS_OVERLAP:
		return "Overlap";
	default:
		return "Unknown";
	}
}


static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd,
					     char *buf, size_t buflen)
{
	int ret;
	char *pos, *end;

	pos = buf;
	end = buf + buflen;

	ret = os_snprintf(pos, end - pos, "PBC Status: %s\n",
			  pbc_status_str(hapd->wps_stats.pbc_status));

	if (os_snprintf_error(end - pos, ret))
		return pos - buf;
	pos += ret;

	ret = os_snprintf(pos, end - pos, "Last WPS result: %s\n",
			  (hapd->wps_stats.status == WPS_STATUS_SUCCESS ?
			   "Success":
			   (hapd->wps_stats.status == WPS_STATUS_FAILURE ?
			    "Failed" : "None")));

	if (os_snprintf_error(end - pos, ret))
		return pos - buf;
	pos += ret;

	/* If status == Failure - Add possible Reasons */
	if(hapd->wps_stats.status == WPS_STATUS_FAILURE &&
	   hapd->wps_stats.failure_reason > 0) {
		ret = os_snprintf(pos, end - pos,
				  "Failure Reason: %s\n",
				  wps_ei_str(hapd->wps_stats.failure_reason));

		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	if (hapd->wps_stats.status) {
		ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n",
				  MAC2STR(hapd->wps_stats.peer_addr));

		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	return pos - buf;
}

#endif /* CONFIG_WPS */

#ifdef CONFIG_HS20

static int hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data *hapd,
					     const char *cmd)
{
	u8 addr[ETH_ALEN];
	const char *url;

	if (hwaddr_aton(cmd, addr))
		return -1;
	url = cmd + 17;
	if (*url == '\0') {
		url = NULL;
	} else {
		if (*url != ' ')
			return -1;
		url++;
		if (*url == '\0')
			url = NULL;
	}

	return hs20_send_wnm_notification(hapd, addr, 1, url);
}


static int hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data *hapd,
					      const char *cmd)
{
	u8 addr[ETH_ALEN];
	int code, reauth_delay, ret;
	const char *pos;
	size_t url_len;
	struct wpabuf *req;

	/* <STA MAC Addr> <Code(0/1)> <Re-auth-Delay(sec)> [URL] */
	if (hwaddr_aton(cmd, addr))
		return -1;

	pos = os_strchr(cmd, ' ');
	if (pos == NULL)
		return -1;
	pos++;
	code = atoi(pos);

	pos = os_strchr(pos, ' ');
	if (pos == NULL)
		return -1;
	pos++;
	reauth_delay = atoi(pos);

	url_len = 0;
	pos = os_strchr(pos, ' ');
	if (pos) {
		pos++;
		url_len = os_strlen(pos);
	}

	req = wpabuf_alloc(4 + url_len);
	if (req == NULL)
		return -1;
	wpabuf_put_u8(req, code);
	wpabuf_put_le16(req, reauth_delay);
	wpabuf_put_u8(req, url_len);
	if (pos)
		wpabuf_put_data(req, pos, url_len);

	wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to " MACSTR
		   " to indicate imminent deauthentication (code=%d "
		   "reauth_delay=%d)", MAC2STR(addr), code, reauth_delay);
	ret = hs20_send_wnm_notification_deauth_req(hapd, addr, req);
	wpabuf_free(req);
	return ret;
}

#endif /* CONFIG_HS20 */


#ifdef CONFIG_INTERWORKING

static int hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data *hapd,
					      const char *cmd)
{
	u8 qos_map_set[16 + 2 * 21], count = 0;
	const char *pos = cmd;
	int val, ret;

	for (;;) {
		if (count == sizeof(qos_map_set)) {
			wpa_printf(MSG_ERROR, "Too many qos_map_set parameters");
			return -1;
		}

		val = atoi(pos);
		if (val < 0 || val > 255) {
			wpa_printf(MSG_INFO, "Invalid QoS Map Set");
			return -1;
		}

		qos_map_set[count++] = val;
		pos = os_strchr(pos, ',');
		if (!pos)
			break;
		pos++;
	}

	if (count < 16 || count & 1) {
		wpa_printf(MSG_INFO, "Invalid QoS Map Set");
		return -1;
	}

	ret = hostapd_drv_set_qos_map(hapd, qos_map_set, count);
	if (ret) {
		wpa_printf(MSG_INFO, "Failed to set QoS Map Set");
		return -1;
	}

	os_memcpy(hapd->conf->qos_map_set, qos_map_set, count);
	hapd->conf->qos_map_set_len = count;

	return 0;
}


static int hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data *hapd,
						const char *cmd)
{
	u8 addr[ETH_ALEN];
	struct sta_info *sta;
	struct wpabuf *buf;
	u8 *qos_map_set = hapd->conf->qos_map_set;
	u8 qos_map_set_len = hapd->conf->qos_map_set_len;
	int ret;

	if (!qos_map_set_len) {
		wpa_printf(MSG_INFO, "QoS Map Set is not set");
		return -1;
	}

	if (hwaddr_aton(cmd, addr))
		return -1;

	sta = ap_get_sta(hapd, addr);
	if (sta == NULL) {
		wpa_printf(MSG_DEBUG, "Station " MACSTR " not found "
			   "for QoS Map Configuration message",
			   MAC2STR(addr));
		return -1;
	}

	if (!sta->qos_map_enabled) {
		wpa_printf(MSG_DEBUG, "Station " MACSTR " did not indicate "
			   "support for QoS Map", MAC2STR(addr));
		return -1;
	}

	buf = wpabuf_alloc(2 + 2 + qos_map_set_len);
	if (buf == NULL)
		return -1;

	wpabuf_put_u8(buf, WLAN_ACTION_QOS);
	wpabuf_put_u8(buf, QOS_QOS_MAP_CONFIG);

	/* QoS Map Set Element */
	wpabuf_put_u8(buf, WLAN_EID_QOS_MAP_SET);
	wpabuf_put_u8(buf, qos_map_set_len);
	wpabuf_put_data(buf, qos_map_set, qos_map_set_len);

	ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr,
				      wpabuf_head(buf), wpabuf_len(buf));
	wpabuf_free(buf);

	return ret;
}

#endif /* CONFIG_INTERWORKING */


#ifdef CONFIG_WNM_AP

static int hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data *hapd,
						const char *cmd)
{
	u8 addr[ETH_ALEN];
	int disassoc_timer;
	struct sta_info *sta;

	if (hwaddr_aton(cmd, addr))
		return -1;
	if (cmd[17] != ' ')
		return -1;
	disassoc_timer = atoi(cmd + 17);

	sta = ap_get_sta(hapd, addr);
	if (sta == NULL) {
		wpa_printf(MSG_DEBUG, "Station " MACSTR
			   " not found for disassociation imminent message",
			   MAC2STR(addr));
		return -1;
	}

	return wnm_send_disassoc_imminent(hapd, sta, disassoc_timer);
}


static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd,
					   const char *cmd)
{
	u8 addr[ETH_ALEN];
	const char *url, *timerstr;
	int disassoc_timer;
	struct sta_info *sta;

	if (hwaddr_aton(cmd, addr))
		return -1;

	sta = ap_get_sta(hapd, addr);
	if (sta == NULL) {
		wpa_printf(MSG_DEBUG, "Station " MACSTR
			   " not found for ESS disassociation imminent message",
			   MAC2STR(addr));
		return -1;
	}

	timerstr = cmd + 17;
	if (*timerstr != ' ')
		return -1;
	timerstr++;
	disassoc_timer = atoi(timerstr);
	if (disassoc_timer < 0 || disassoc_timer > 65535)
		return -1;

	url = os_strchr(timerstr, ' ');
	if (url == NULL)
		return -1;
	url++;

	return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer);
}


static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
					 const char *cmd)
{
	u8 addr[ETH_ALEN];
	const char *pos, *end;
	int disassoc_timer = 0;
	struct sta_info *sta;
	u8 req_mode = 0, valid_int = 0x01;
	u8 bss_term_dur[12];
	char *url = NULL;
	int ret;
	u8 nei_rep[1000];
	int nei_len;
	u8 mbo[10];
	size_t mbo_len = 0;

	if (hwaddr_aton(cmd, addr)) {
		wpa_printf(MSG_DEBUG, "Invalid STA MAC address");
		return -1;
	}

	sta = ap_get_sta(hapd, addr);
	if (sta == NULL) {
		wpa_printf(MSG_DEBUG, "Station " MACSTR
			   " not found for BSS TM Request message",
			   MAC2STR(addr));
		return -1;
	}

	pos = os_strstr(cmd, " disassoc_timer=");
	if (pos) {
		pos += 16;
		disassoc_timer = atoi(pos);
		if (disassoc_timer < 0 || disassoc_timer > 65535) {
			wpa_printf(MSG_DEBUG, "Invalid disassoc_timer");
			return -1;
		}
	}

	pos = os_strstr(cmd, " valid_int=");
	if (pos) {
		pos += 11;
		valid_int = atoi(pos);
	}

	pos = os_strstr(cmd, " bss_term=");
	if (pos) {
		pos += 10;
		req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED;
		/* TODO: TSF configurable/learnable */
		bss_term_dur[0] = 4; /* Subelement ID */
		bss_term_dur[1] = 10; /* Length */
		os_memset(&bss_term_dur[2], 0, 8);
		end = os_strchr(pos, ',');
		if (end == NULL) {
			wpa_printf(MSG_DEBUG, "Invalid bss_term data");
			return -1;
		}
		end++;
		WPA_PUT_LE16(&bss_term_dur[10], atoi(end));
	}

	nei_len = ieee802_11_parse_candidate_list(cmd, nei_rep,
						  sizeof(nei_rep));
	if (nei_len < 0)
		return -1;

	pos = os_strstr(cmd, " url=");
	if (pos) {
		size_t len;
		pos += 5;
		end = os_strchr(pos, ' ');
		if (end)
			len = end - pos;
		else
			len = os_strlen(pos);
		url = os_malloc(len + 1);
		if (url == NULL)
			return -1;
		os_memcpy(url, pos, len);
		url[len] = '\0';
		req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT;
	}

	if (os_strstr(cmd, " pref=1"))
		req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED;
	if (os_strstr(cmd, " abridged=1"))
		req_mode |= WNM_BSS_TM_REQ_ABRIDGED;
	if (os_strstr(cmd, " disassoc_imminent=1"))
		req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT;

#ifdef CONFIG_MBO
	pos = os_strstr(cmd, "mbo=");
	if (pos) {
		unsigned int mbo_reason, cell_pref, reassoc_delay;
		u8 *mbo_pos = mbo;

		ret = sscanf(pos, "mbo=%u:%u:%u", &mbo_reason,
			     &reassoc_delay, &cell_pref);
		if (ret != 3) {
			wpa_printf(MSG_DEBUG,
				   "MBO requires three arguments: mbo=<reason>:<reassoc_delay>:<cell_pref>");
			ret = -1;
			goto fail;
		}

		if (mbo_reason > MBO_TRANSITION_REASON_PREMIUM_AP) {
			wpa_printf(MSG_DEBUG,
				   "Invalid MBO transition reason code %u",
				   mbo_reason);
			ret = -1;
			goto fail;
		}

		/* Valid values for Cellular preference are: 0, 1, 255 */
		if (cell_pref != 0 && cell_pref != 1 && cell_pref != 255) {
			wpa_printf(MSG_DEBUG,
				   "Invalid MBO cellular capability %u",
				   cell_pref);
			ret = -1;
			goto fail;
		}

		if (reassoc_delay > 65535 ||
		    (reassoc_delay &&
		     !(req_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT))) {
			wpa_printf(MSG_DEBUG,
				   "MBO: Assoc retry delay is only valid in disassoc imminent mode");
			ret = -1;
			goto fail;
		}

		*mbo_pos++ = MBO_ATTR_ID_TRANSITION_REASON;
		*mbo_pos++ = 1;
		*mbo_pos++ = mbo_reason;
		*mbo_pos++ = MBO_ATTR_ID_CELL_DATA_PREF;
		*mbo_pos++ = 1;
		*mbo_pos++ = cell_pref;

		if (reassoc_delay) {
			*mbo_pos++ = MBO_ATTR_ID_ASSOC_RETRY_DELAY;
			*mbo_pos++ = 2;
			WPA_PUT_LE16(mbo_pos, reassoc_delay);
			mbo_pos += 2;
		}

		mbo_len = mbo_pos - mbo;
	}
#endif /* CONFIG_MBO */

	ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer,
				  valid_int, bss_term_dur, url,
				  nei_len ? nei_rep : NULL, nei_len,
				  mbo_len ? mbo : NULL, mbo_len);
#ifdef CONFIG_MBO
fail:
#endif /* CONFIG_MBO */
	os_free(url);
	return ret;
}


static int hostapd_ctrl_iface_coloc_intf_req(struct hostapd_data *hapd,
					     const char *cmd)
{
	u8 addr[ETH_ALEN];
	struct sta_info *sta;
	const char *pos;
	unsigned int auto_report, timeout;

	if (hwaddr_aton(cmd, addr)) {
		wpa_printf(MSG_DEBUG, "Invalid STA MAC address");
		return -1;
	}

	sta = ap_get_sta(hapd, addr);
	if (!sta) {
		wpa_printf(MSG_DEBUG, "Station " MACSTR
			   " not found for Collocated Interference Request",
			   MAC2STR(addr));
		return -1;
	}

	pos = cmd + 17;
	if (*pos != ' ')
		return -1;
	pos++;
	auto_report = atoi(pos);
	pos = os_strchr(pos, ' ');
	if (!pos)
		return -1;
	pos++;
	timeout = atoi(pos);

	return wnm_send_coloc_intf_req(hapd, sta, auto_report, timeout);
}

#endif /* CONFIG_WNM_AP */


static int hostapd_ctrl_iface_get_key_mgmt(struct hostapd_data *hapd,
					   char *buf, size_t buflen)
{
	int ret = 0;
	char *pos, *end;

	pos = buf;
	end = buf + buflen;

	WPA_ASSERT(hapd->conf->wpa_key_mgmt);

	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) {
		ret = os_snprintf(pos, end - pos, "WPA-PSK ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
		ret = os_snprintf(pos, end - pos, "WPA-EAP ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#ifdef CONFIG_IEEE80211R_AP
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) {
		ret = os_snprintf(pos, end - pos, "FT-PSK ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
		ret = os_snprintf(pos, end - pos, "FT-EAP ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#ifdef CONFIG_SHA384
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X_SHA384) {
		ret = os_snprintf(pos, end - pos, "FT-EAP-SHA384 ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_SHA384 */
#ifdef CONFIG_SAE
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) {
		ret = os_snprintf(pos, end - pos, "FT-SAE ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_SAE */
#ifdef CONFIG_FILS
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA256) {
		ret = os_snprintf(pos, end - pos, "FT-FILS-SHA256 ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA384) {
		ret = os_snprintf(pos, end - pos, "FT-FILS-SHA384 ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_FILS */
#endif /* CONFIG_IEEE80211R_AP */
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
		ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
		ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#ifdef CONFIG_SAE
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) {
		ret = os_snprintf(pos, end - pos, "SAE ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_SAE */
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
		ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
	if (hapd->conf->wpa_key_mgmt &
	    WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
		ret = os_snprintf(pos, end - pos,
				  "WPA-EAP-SUITE-B-192 ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#ifdef CONFIG_FILS
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA256) {
		ret = os_snprintf(pos, end - pos, "FILS-SHA256 ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA384) {
		ret = os_snprintf(pos, end - pos, "FILS-SHA384 ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_FILS */

#ifdef CONFIG_OWE
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) {
		ret = os_snprintf(pos, end - pos, "OWE ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_OWE */

#ifdef CONFIG_DPP
	if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_DPP) {
		ret = os_snprintf(pos, end - pos, "DPP ");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_DPP */

	if (pos > buf && *(pos - 1) == ' ') {
		*(pos - 1) = '\0';
		pos--;
	}

	return pos - buf;
}


static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd,
					 char *buf, size_t buflen)
{
	int ret;
	char *pos, *end;

	pos = buf;
	end = buf + buflen;

	ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n"
			  "ssid=%s\n",
			  MAC2STR(hapd->own_addr),
			  wpa_ssid_txt(hapd->conf->ssid.ssid,
				       hapd->conf->ssid.ssid_len));
	if (os_snprintf_error(end - pos, ret))
		return pos - buf;
	pos += ret;

#ifdef CONFIG_WPS
	ret = os_snprintf(pos, end - pos, "wps_state=%s\n",
			  hapd->conf->wps_state == 0 ? "disabled" :
			  (hapd->conf->wps_state == 1 ? "not configured" :
			   "configured"));
	if (os_snprintf_error(end - pos, ret))
		return pos - buf;
	pos += ret;

	if (hapd->conf->wps_state && hapd->conf->wpa &&
	    hapd->conf->ssid.wpa_passphrase) {
		ret = os_snprintf(pos, end - pos, "passphrase=%s\n",
				  hapd->conf->ssid.wpa_passphrase);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	if (hapd->conf->wps_state && hapd->conf->wpa &&
	    hapd->conf->ssid.wpa_psk &&
	    hapd->conf->ssid.wpa_psk->group) {
		char hex[PMK_LEN * 2 + 1];
		wpa_snprintf_hex(hex, sizeof(hex),
				 hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
		ret = os_snprintf(pos, end - pos, "psk=%s\n", hex);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_WPS */

	if (hapd->conf->wpa) {
		ret = os_snprintf(pos, end - pos, "wpa=%d\n", hapd->conf->wpa);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) {
		ret = os_snprintf(pos, end - pos, "key_mgmt=");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;

		pos += hostapd_ctrl_iface_get_key_mgmt(hapd, pos, end - pos);

		ret = os_snprintf(pos, end - pos, "\n");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	if (hapd->conf->wpa) {
		ret = os_snprintf(pos, end - pos, "group_cipher=%s\n",
				  wpa_cipher_txt(hapd->conf->wpa_group));
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) {
		ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher=");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;

		ret = wpa_write_ciphers(pos, end, hapd->conf->rsn_pairwise,
					" ");
		if (ret < 0)
			return pos - buf;
		pos += ret;

		ret = os_snprintf(pos, end - pos, "\n");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) {
		ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher=");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;

		ret = wpa_write_ciphers(pos, end, hapd->conf->wpa_pairwise,
					" ");
		if (ret < 0)
			return pos - buf;
		pos += ret;

		ret = os_snprintf(pos, end - pos, "\n");
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	if (hapd->conf->wpa && hapd->conf->wpa_deny_ptk0_rekey) {
		ret = os_snprintf(pos, end - pos, "wpa_deny_ptk0_rekey=%d\n",
				  hapd->conf->wpa_deny_ptk0_rekey);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->extended_key_id) {
		ret = os_snprintf(pos, end - pos, "extended_key_id=%d\n",
				  hapd->conf->extended_key_id);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	return pos - buf;
}


static void hostapd_disassoc_accept_mac(struct hostapd_data *hapd)
{
	struct sta_info *sta;
	struct vlan_description vlan_id;

	if (hapd->conf->macaddr_acl != DENY_UNLESS_ACCEPTED)
		return;

	for (sta = hapd->sta_list; sta; sta = sta->next) {
		if (!hostapd_maclist_found(hapd->conf->accept_mac,
					   hapd->conf->num_accept_mac,
					   sta->addr, &vlan_id) ||
		    (vlan_id.notempty &&
		     vlan_compare(&vlan_id, sta->vlan_desc)))
			ap_sta_disconnect(hapd, sta, sta->addr,
					  WLAN_REASON_UNSPECIFIED);
	}
}


static void hostapd_disassoc_deny_mac(struct hostapd_data *hapd)
{
	struct sta_info *sta;
	struct vlan_description vlan_id;

	for (sta = hapd->sta_list; sta; sta = sta->next) {
		if (hostapd_maclist_found(hapd->conf->deny_mac,
					  hapd->conf->num_deny_mac, sta->addr,
					  &vlan_id) &&
		    (!vlan_id.notempty ||
		     !vlan_compare(&vlan_id, sta->vlan_desc)))
			ap_sta_disconnect(hapd, sta, sta->addr,
					  WLAN_REASON_UNSPECIFIED);
	}
}


static int hostapd_ctrl_iface_set_band(struct hostapd_data *hapd,
				       const char *band)
{
	union wpa_event_data event;
	enum set_band setband;

	if (os_strcmp(band, "AUTO") == 0)
		setband = WPA_SETBAND_AUTO;
	else if (os_strcmp(band, "5G") == 0)
		setband = WPA_SETBAND_5G;
	else if (os_strcmp(band, "2G") == 0)
		setband = WPA_SETBAND_2G;
	else
		return -1;

	if (hostapd_drv_set_band(hapd, setband) == 0) {
		os_memset(&event, 0, sizeof(event));
		event.channel_list_changed.initiator = REGDOM_SET_BY_USER;
		event.channel_list_changed.type = REGDOM_TYPE_UNKNOWN;
		wpa_supplicant_event(hapd, EVENT_CHANNEL_LIST_CHANGED, &event);
	}

	return 0;
}


static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd)
{
	char *value;
	int ret = 0;

	value = os_strchr(cmd, ' ');
	if (value == NULL)
		return -1;
	*value++ = '\0';

	wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value);
	if (0) {
#ifdef CONFIG_WPS_TESTING
	} else if (os_strcasecmp(cmd, "wps_version_number") == 0) {
		long int val;
		val = strtol(value, NULL, 0);
		if (val < 0 || val > 0xff) {
			ret = -1;
			wpa_printf(MSG_DEBUG, "WPS: Invalid "
				   "wps_version_number %ld", val);
		} else {
			wps_version_number = val;
			wpa_printf(MSG_DEBUG, "WPS: Testing - force WPS "
				   "version %u.%u",
				   (wps_version_number & 0xf0) >> 4,
				   wps_version_number & 0x0f);
			hostapd_wps_update_ie(hapd);
		}
	} else if (os_strcasecmp(cmd, "wps_testing_dummy_cred") == 0) {
		wps_testing_dummy_cred = atoi(value);
		wpa_printf(MSG_DEBUG, "WPS: Testing - dummy_cred=%d",
			   wps_testing_dummy_cred);
	} else if (os_strcasecmp(cmd, "wps_corrupt_pkhash") == 0) {
		wps_corrupt_pkhash = atoi(value);
		wpa_printf(MSG_DEBUG, "WPS: Testing - wps_corrupt_pkhash=%d",
			   wps_corrupt_pkhash);
#endif /* CONFIG_WPS_TESTING */
#ifdef CONFIG_TESTING_OPTIONS
	} else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) {
		hapd->ext_mgmt_frame_handling = atoi(value);
	} else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) {
		hapd->ext_eapol_frame_io = atoi(value);
#ifdef CONFIG_DPP
	} else if (os_strcasecmp(cmd, "dpp_config_obj_override") == 0) {
		os_free(hapd->dpp_config_obj_override);
		hapd->dpp_config_obj_override = os_strdup(value);
	} else if (os_strcasecmp(cmd, "dpp_discovery_override") == 0) {
		os_free(hapd->dpp_discovery_override);
		hapd->dpp_discovery_override = os_strdup(value);
	} else if (os_strcasecmp(cmd, "dpp_groups_override") == 0) {
		os_free(hapd->dpp_groups_override);
		hapd->dpp_groups_override = os_strdup(value);
	} else if (os_strcasecmp(cmd,
				 "dpp_ignore_netaccesskey_mismatch") == 0) {
		hapd->dpp_ignore_netaccesskey_mismatch = atoi(value);
	} else if (os_strcasecmp(cmd, "dpp_test") == 0) {
		dpp_test = atoi(value);
	} else if (os_strcasecmp(cmd, "dpp_version_override") == 0) {
		dpp_version_override = atoi(value);
#endif /* CONFIG_DPP */
#endif /* CONFIG_TESTING_OPTIONS */
#ifdef CONFIG_MBO
	} else if (os_strcasecmp(cmd, "mbo_assoc_disallow") == 0) {
		int val;

		if (!hapd->conf->mbo_enabled)
			return -1;

		val = atoi(value);
		if (val < 0 || val > 1)
			return -1;

		hapd->mbo_assoc_disallow = val;
		ieee802_11_update_beacons(hapd->iface);

		/*
		 * TODO: Need to configure drivers that do AP MLME offload with
		 * disallowing station logic.
		 */
#endif /* CONFIG_MBO */
#ifdef CONFIG_DPP
	} else if (os_strcasecmp(cmd, "dpp_configurator_params") == 0) {
		os_free(hapd->dpp_configurator_params);
		hapd->dpp_configurator_params = os_strdup(value);
#endif /* CONFIG_DPP */
	} else if (os_strcasecmp(cmd, "setband") == 0) {
		ret = hostapd_ctrl_iface_set_band(hapd, value);
	} else {
		ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value);
		if (ret)
			return ret;

		if (os_strcasecmp(cmd, "deny_mac_file") == 0) {
			hostapd_disassoc_deny_mac(hapd);
		} else if (os_strcasecmp(cmd, "accept_mac_file") == 0) {
			hostapd_disassoc_accept_mac(hapd);
		} else if (os_strncmp(cmd, "wme_ac_", 7) == 0 ||
			   os_strncmp(cmd, "wmm_ac_", 7) == 0) {
			hapd->parameter_set_count++;
			if (ieee802_11_update_beacons(hapd->iface))
				wpa_printf(MSG_DEBUG,
					   "Failed to update beacons with WMM parameters");
		} else if (os_strcmp(cmd, "wpa_passphrase") == 0 ||
			   os_strcmp(cmd, "sae_password") == 0 ||
			   os_strcmp(cmd, "sae_pwe") == 0) {
			if (hapd->started)
				hostapd_setup_sae_pt(hapd->conf);
		}

#ifdef CONFIG_TESTING_OPTIONS
		if (os_strcmp(cmd, "ft_rsnxe_used") == 0)
			wpa_auth_set_ft_rsnxe_used(hapd->wpa_auth,
						   hapd->conf->ft_rsnxe_used);
#endif /* CONFIG_TESTING_OPTIONS */
	}

	return ret;
}


static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd,
				  char *buf, size_t buflen)
{
	int res;

	wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd);

	if (os_strcmp(cmd, "version") == 0) {
		res = os_snprintf(buf, buflen, "%s", VERSION_STR);
		if (os_snprintf_error(buflen, res))
			return -1;
		return res;
	} else if (os_strcmp(cmd, "tls_library") == 0) {
		res = tls_get_library_version(buf, buflen);
		if (os_snprintf_error(buflen, res))
			return -1;
		return res;
	}

	return -1;
}


static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface)
{
	if (hostapd_enable_iface(iface) < 0) {
		wpa_printf(MSG_ERROR, "Enabling of interface failed");
		return -1;
	}
	return 0;
}


static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface)
{
	if (hostapd_reload_iface(iface) < 0) {
		wpa_printf(MSG_ERROR, "Reloading of interface failed");
		return -1;
	}
	return 0;
}


static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface)
{
	if (hostapd_disable_iface(iface) < 0) {
		wpa_printf(MSG_ERROR, "Disabling of interface failed");
		return -1;
	}
	return 0;
}


static int
hostapd_ctrl_iface_kick_mismatch_psk_sta_iter(struct hostapd_data *hapd,
					      struct sta_info *sta, void *ctx)
{
	struct hostapd_wpa_psk *psk;
	const u8 *pmk;
	int pmk_len;
	int pmk_match;
	int sta_match;
	int bss_match;
	int reason;

	pmk = wpa_auth_get_pmk(sta->wpa_sm, &pmk_len);

	for (psk = hapd->conf->ssid.wpa_psk; pmk && psk; psk = psk->next) {
		pmk_match = PMK_LEN == pmk_len &&
			os_memcmp(psk->psk, pmk, pmk_len) == 0;
		sta_match = psk->group == 0 &&
			os_memcmp(sta->addr, psk->addr, ETH_ALEN) == 0;
		bss_match = psk->group == 1;

		if (pmk_match && (sta_match || bss_match))
			return 0;
	}

	wpa_printf(MSG_INFO, "STA " MACSTR
		   " PSK/passphrase no longer valid - disconnect",
		   MAC2STR(sta->addr));
	reason = WLAN_REASON_PREV_AUTH_NOT_VALID;
	hostapd_drv_sta_deauth(hapd, sta->addr, reason);
	ap_sta_deauthenticate(hapd, sta, reason);

	return 0;
}


static int hostapd_ctrl_iface_reload_wpa_psk(struct hostapd_data *hapd)
{
	struct hostapd_bss_config *conf = hapd->conf;
	int err;

	hostapd_config_clear_wpa_psk(&conf->ssid.wpa_psk);

	err = hostapd_setup_wpa_psk(conf);
	if (err < 0) {
		wpa_printf(MSG_ERROR, "Reloading WPA-PSK passwords failed: %d",
			   err);
		return -1;
	}

	ap_for_each_sta(hapd, hostapd_ctrl_iface_kick_mismatch_psk_sta_iter,
			NULL);

	return 0;
}


#ifdef CONFIG_TESTING_OPTIONS

static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd)
{
	union wpa_event_data data;
	char *pos, *param;
	enum wpa_event_type event;

	wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd);

	os_memset(&data, 0, sizeof(data));

	param = os_strchr(cmd, ' ');
	if (param == NULL)
		return -1;
	*param++ = '\0';

	if (os_strcmp(cmd, "DETECTED") == 0)
		event = EVENT_DFS_RADAR_DETECTED;
	else if (os_strcmp(cmd, "CAC-FINISHED") == 0)
		event = EVENT_DFS_CAC_FINISHED;
	else if (os_strcmp(cmd, "CAC-ABORTED") == 0)
		event = EVENT_DFS_CAC_ABORTED;
	else if (os_strcmp(cmd, "NOP-FINISHED") == 0)
		event = EVENT_DFS_NOP_FINISHED;
	else {
		wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s",
			   cmd);
		return -1;
	}

	pos = os_strstr(param, "freq=");
	if (pos)
		data.dfs_event.freq = atoi(pos + 5);

	pos = os_strstr(param, "ht_enabled=1");
	if (pos)
		data.dfs_event.ht_enabled = 1;

	pos = os_strstr(param, "chan_offset=");
	if (pos)
		data.dfs_event.chan_offset = atoi(pos + 12);

	pos = os_strstr(param, "chan_width=");
	if (pos)
		data.dfs_event.chan_width = atoi(pos + 11);

	pos = os_strstr(param, "cf1=");
	if (pos)
		data.dfs_event.cf1 = atoi(pos + 4);

	pos = os_strstr(param, "cf2=");
	if (pos)
		data.dfs_event.cf2 = atoi(pos + 4);

	wpa_supplicant_event(hapd, event, &data);

	return 0;
}


static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd)
{
	size_t len;
	u8 *buf;
	int res;

	wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd);

	len = os_strlen(cmd);
	if (len & 1)
		return -1;
	len /= 2;

	buf = os_malloc(len);
	if (buf == NULL)
		return -1;

	if (hexstr2bin(cmd, buf, len) < 0) {
		os_free(buf);
		return -1;
	}

	res = hostapd_drv_send_mlme(hapd, buf, len, 0, NULL, 0, 0);
	os_free(buf);
	return res;
}


static int hostapd_ctrl_iface_mgmt_tx_status_process(struct hostapd_data *hapd,
						     char *cmd)
{
	char *pos, *param;
	size_t len;
	u8 *buf;
	int stype = 0, ok = 0;
	union wpa_event_data event;

	if (!hapd->ext_mgmt_frame_handling)
		return -1;

	/* stype=<val> ok=<0/1> buf=<frame hexdump> */

	wpa_printf(MSG_DEBUG, "External MGMT TX status process: %s", cmd);

	pos = cmd;
	param = os_strstr(pos, "stype=");
	if (param) {
		param += 6;
		stype = atoi(param);
	}

	param = os_strstr(pos, " ok=");
	if (param) {
		param += 4;
		ok = atoi(param);
	}

	param = os_strstr(pos, " buf=");
	if (!param)
		return -1;
	param += 5;

	len = os_strlen(param);
	if (len & 1)
		return -1;
	len /= 2;

	buf = os_malloc(len);
	if (!buf || hexstr2bin(param, buf, len) < 0) {
		os_free(buf);
		return -1;
	}

	os_memset(&event, 0, sizeof(event));
	event.tx_status.type = WLAN_FC_TYPE_MGMT;
	event.tx_status.data = buf;
	event.tx_status.data_len = len;
	event.tx_status.stype = stype;
	event.tx_status.ack = ok;
	hapd->ext_mgmt_frame_handling = 0;
	wpa_supplicant_event(hapd, EVENT_TX_STATUS, &event);
	hapd->ext_mgmt_frame_handling = 1;

	os_free(buf);

	return 0;
}


static int hostapd_ctrl_iface_mgmt_rx_process(struct hostapd_data *hapd,
					      char *cmd)
{
	char *pos, *param;
	size_t len;
	u8 *buf;
	int freq = 0, datarate = 0, ssi_signal = 0;
	union wpa_event_data event;

	if (!hapd->ext_mgmt_frame_handling)
		return -1;

	/* freq=<MHz> datarate=<val> ssi_signal=<val> frame=<frame hexdump> */

	wpa_printf(MSG_DEBUG, "External MGMT RX process: %s", cmd);

	pos = cmd;
	param = os_strstr(pos, "freq=");
	if (param) {
		param += 5;
		freq = atoi(param);
	}

	param = os_strstr(pos, " datarate=");
	if (param) {
		param += 10;
		datarate = atoi(param);
	}

	param = os_strstr(pos, " ssi_signal=");
	if (param) {
		param += 12;
		ssi_signal = atoi(param);
	}

	param = os_strstr(pos, " frame=");
	if (param == NULL)
		return -1;
	param += 7;

	len = os_strlen(param);
	if (len & 1)
		return -1;
	len /= 2;

	buf = os_malloc(len);
	if (buf == NULL)
		return -1;

	if (hexstr2bin(param, buf, len) < 0) {
		os_free(buf);
		return -1;
	}

	os_memset(&event, 0, sizeof(event));
	event.rx_mgmt.freq = freq;
	event.rx_mgmt.frame = buf;
	event.rx_mgmt.frame_len = len;
	event.rx_mgmt.ssi_signal = ssi_signal;
	event.rx_mgmt.datarate = datarate;
	hapd->ext_mgmt_frame_handling = 0;
	wpa_supplicant_event(hapd, EVENT_RX_MGMT, &event);
	hapd->ext_mgmt_frame_handling = 1;

	os_free(buf);

	return 0;
}


static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd)
{
	char *pos;
	u8 src[ETH_ALEN], *buf;
	int used;
	size_t len;

	wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd);

	pos = cmd;
	used = hwaddr_aton2(pos, src);
	if (used < 0)
		return -1;
	pos += used;
	while (*pos == ' ')
		pos++;

	len = os_strlen(pos);
	if (len & 1)
		return -1;
	len /= 2;

	buf = os_malloc(len);
	if (buf == NULL)
		return -1;

	if (hexstr2bin(pos, buf, len) < 0) {
		os_free(buf);
		return -1;
	}

	ieee802_1x_receive(hapd, src, buf, len);
	os_free(buf);

	return 0;
}


static u16 ipv4_hdr_checksum(const void *buf, size_t len)
{
	size_t i;
	u32 sum = 0;
	const u16 *pos = buf;

	for (i = 0; i < len / 2; i++)
		sum += *pos++;

	while (sum >> 16)
		sum = (sum & 0xffff) + (sum >> 16);

	return sum ^ 0xffff;
}


#define HWSIM_PACKETLEN 1500
#define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header))

static void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf,
				 size_t len)
{
	struct hostapd_data *hapd = ctx;
	const struct ether_header *eth;
	struct ip ip;
	const u8 *pos;
	unsigned int i;
	char extra[30];

	if (len < sizeof(*eth) + sizeof(ip) || len > HWSIM_PACKETLEN) {
		wpa_printf(MSG_DEBUG,
			   "test data: RX - ignore unexpected length %d",
			   (int) len);
		return;
	}

	eth = (const struct ether_header *) buf;
	os_memcpy(&ip, eth + 1, sizeof(ip));
	pos = &buf[sizeof(*eth) + sizeof(ip)];

	if (ip.ip_hl != 5 || ip.ip_v != 4 ||
	    ntohs(ip.ip_len) > HWSIM_IP_LEN) {
		wpa_printf(MSG_DEBUG,
			   "test data: RX - ignore unexpect IP header");
		return;
	}

	for (i = 0; i < ntohs(ip.ip_len) - sizeof(ip); i++) {
		if (*pos != (u8) i) {
			wpa_printf(MSG_DEBUG,
				   "test data: RX - ignore mismatching payload");
			return;
		}
		pos++;
	}

	extra[0] = '\0';
	if (ntohs(ip.ip_len) != HWSIM_IP_LEN)
		os_snprintf(extra, sizeof(extra), " len=%d", ntohs(ip.ip_len));
	wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR "%s",
		MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost), extra);
}


static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd,
					       char *cmd)
{
	int enabled = atoi(cmd);
	char *pos;
	const char *ifname;

	if (!enabled) {
		if (hapd->l2_test) {
			l2_packet_deinit(hapd->l2_test);
			hapd->l2_test = NULL;
			wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
				"test data: Disabled");
		}
		return 0;
	}

	if (hapd->l2_test)
		return 0;

	pos = os_strstr(cmd, " ifname=");
	if (pos)
		ifname = pos + 8;
	else
		ifname = hapd->conf->iface;

	hapd->l2_test = l2_packet_init(ifname, hapd->own_addr,
					ETHERTYPE_IP, hostapd_data_test_rx,
					hapd, 1);
	if (hapd->l2_test == NULL)
		return -1;

	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled");

	return 0;
}


static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd)
{
	u8 dst[ETH_ALEN], src[ETH_ALEN];
	char *pos, *pos2;
	int used;
	long int val;
	u8 tos;
	u8 buf[2 + HWSIM_PACKETLEN];
	struct ether_header *eth;
	struct ip *ip;
	u8 *dpos;
	unsigned int i;
	size_t send_len = HWSIM_IP_LEN;

	if (hapd->l2_test == NULL)
		return -1;

	/* format: <dst> <src> <tos> [len=<length>] */

	pos = cmd;
	used = hwaddr_aton2(pos, dst);
	if (used < 0)
		return -1;
	pos += used;
	while (*pos == ' ')
		pos++;
	used = hwaddr_aton2(pos, src);
	if (used < 0)
		return -1;
	pos += used;

	val = strtol(pos, &pos2, 0);
	if (val < 0 || val > 0xff)
		return -1;
	tos = val;

	pos = os_strstr(pos2, " len=");
	if (pos) {
		i = atoi(pos + 5);
		if (i < sizeof(*ip) || i > HWSIM_IP_LEN)
			return -1;
		send_len = i;
	}

	eth = (struct ether_header *) &buf[2];
	os_memcpy(eth->ether_dhost, dst, ETH_ALEN);
	os_memcpy(eth->ether_shost, src, ETH_ALEN);
	eth->ether_type = htons(ETHERTYPE_IP);
	ip = (struct ip *) (eth + 1);
	os_memset(ip, 0, sizeof(*ip));
	ip->ip_hl = 5;
	ip->ip_v = 4;
	ip->ip_ttl = 64;
	ip->ip_tos = tos;
	ip->ip_len = htons(send_len);
	ip->ip_p = 1;
	ip->ip_src.s_addr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 1);
	ip->ip_dst.s_addr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 2);
	ip->ip_sum = ipv4_hdr_checksum(ip, sizeof(*ip));
	dpos = (u8 *) (ip + 1);
	for (i = 0; i < send_len - sizeof(*ip); i++)
		*dpos++ = i;

	if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, &buf[2],
			   sizeof(struct ether_header) + send_len) < 0)
		return -1;

	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR
		" src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos);

	return 0;
}


static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd,
					      char *cmd)
{
	u8 *buf;
	struct ether_header *eth;
	struct l2_packet_data *l2 = NULL;
	size_t len;
	u16 ethertype;
	int res = -1;
	const char *ifname = hapd->conf->iface;

	if (os_strncmp(cmd, "ifname=", 7) == 0) {
		cmd += 7;
		ifname = cmd;
		cmd = os_strchr(cmd, ' ');
		if (cmd == NULL)
			return -1;
		*cmd++ = '\0';
	}

	len = os_strlen(cmd);
	if (len & 1 || len < ETH_HLEN * 2)
		return -1;
	len /= 2;

	buf = os_malloc(len);
	if (buf == NULL)
		return -1;

	if (hexstr2bin(cmd, buf, len) < 0)
		goto done;

	eth = (struct ether_header *) buf;
	ethertype = ntohs(eth->ether_type);

	l2 = l2_packet_init(ifname, hapd->own_addr, ethertype,
			    hostapd_data_test_rx, hapd, 1);
	if (l2 == NULL)
		goto done;

	res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len);
	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res);
done:
	if (l2)
		l2_packet_deinit(l2);
	os_free(buf);

	return res < 0 ? -1 : 0;
}


static int hostapd_ctrl_test_alloc_fail(struct hostapd_data *hapd, char *cmd)
{
#ifdef WPA_TRACE_BFD
	char *pos;

	wpa_trace_fail_after = atoi(cmd);
	pos = os_strchr(cmd, ':');
	if (pos) {
		pos++;
		os_strlcpy(wpa_trace_fail_func, pos,
			   sizeof(wpa_trace_fail_func));
	} else {
		wpa_trace_fail_after = 0;
	}

	return 0;
#else /* WPA_TRACE_BFD */
	return -1;
#endif /* WPA_TRACE_BFD */
}


static int hostapd_ctrl_get_alloc_fail(struct hostapd_data *hapd,
				       char *buf, size_t buflen)
{
#ifdef WPA_TRACE_BFD
	return os_snprintf(buf, buflen, "%u:%s", wpa_trace_fail_after,
			   wpa_trace_fail_func);
#else /* WPA_TRACE_BFD */
	return -1;
#endif /* WPA_TRACE_BFD */
}


static int hostapd_ctrl_test_fail(struct hostapd_data *hapd, char *cmd)
{
#ifdef WPA_TRACE_BFD
	char *pos;

	wpa_trace_test_fail_after = atoi(cmd);
	pos = os_strchr(cmd, ':');
	if (pos) {
		pos++;
		os_strlcpy(wpa_trace_test_fail_func, pos,
			   sizeof(wpa_trace_test_fail_func));
	} else {
		wpa_trace_test_fail_after = 0;
	}

	return 0;
#else /* WPA_TRACE_BFD */
	return -1;
#endif /* WPA_TRACE_BFD */
}


static int hostapd_ctrl_get_fail(struct hostapd_data *hapd,
				 char *buf, size_t buflen)
{
#ifdef WPA_TRACE_BFD
	return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after,
			   wpa_trace_test_fail_func);
#else /* WPA_TRACE_BFD */
	return -1;
#endif /* WPA_TRACE_BFD */
}


static int hostapd_ctrl_reset_pn(struct hostapd_data *hapd, const char *cmd)
{
	struct sta_info *sta;
	u8 addr[ETH_ALEN];
	u8 zero[WPA_TK_MAX_LEN];

	os_memset(zero, 0, sizeof(zero));

	if (hwaddr_aton(cmd, addr))
		return -1;

	if (is_broadcast_ether_addr(addr) && os_strstr(cmd, " BIGTK")) {
		if (hapd->last_bigtk_alg == WPA_ALG_NONE)
			return -1;

		wpa_printf(MSG_INFO, "TESTING: Reset BIPN for BIGTK");

		/* First, use a zero key to avoid any possible duplicate key
		 * avoidance in the driver. */
		if (hostapd_drv_set_key(hapd->conf->iface, hapd,
					hapd->last_bigtk_alg,
					broadcast_ether_addr,
					hapd->last_bigtk_key_idx, 0, 1, NULL, 0,
					zero, hapd->last_bigtk_len,
					KEY_FLAG_GROUP_TX_DEFAULT) < 0)
			return -1;

		/* Set the previously configured key to reset its TSC */
		return hostapd_drv_set_key(hapd->conf->iface, hapd,
					   hapd->last_bigtk_alg,
					   broadcast_ether_addr,
					   hapd->last_bigtk_key_idx, 0, 1, NULL,
					   0, hapd->last_bigtk,
					   hapd->last_bigtk_len,
					   KEY_FLAG_GROUP_TX_DEFAULT);
	}

	if (is_broadcast_ether_addr(addr) && os_strstr(cmd, "IGTK")) {
		if (hapd->last_igtk_alg == WPA_ALG_NONE)
			return -1;

		wpa_printf(MSG_INFO, "TESTING: Reset IPN for IGTK");

		/* First, use a zero key to avoid any possible duplicate key
		 * avoidance in the driver. */
		if (hostapd_drv_set_key(hapd->conf->iface, hapd,
					hapd->last_igtk_alg,
					broadcast_ether_addr,
					hapd->last_igtk_key_idx, 0, 1, NULL, 0,
					zero, hapd->last_igtk_len,
					KEY_FLAG_GROUP_TX_DEFAULT) < 0)
			return -1;

		/* Set the previously configured key to reset its TSC */
		return hostapd_drv_set_key(hapd->conf->iface, hapd,
					   hapd->last_igtk_alg,
					   broadcast_ether_addr,
					   hapd->last_igtk_key_idx, 0, 1, NULL,
					   0, hapd->last_igtk,
					   hapd->last_igtk_len,
					   KEY_FLAG_GROUP_TX_DEFAULT);
	}

	if (is_broadcast_ether_addr(addr)) {
		if (hapd->last_gtk_alg == WPA_ALG_NONE)
			return -1;

		wpa_printf(MSG_INFO, "TESTING: Reset PN for GTK");

		/* First, use a zero key to avoid any possible duplicate key
		 * avoidance in the driver. */
		if (hostapd_drv_set_key(hapd->conf->iface, hapd,
					hapd->last_gtk_alg,
					broadcast_ether_addr,
					hapd->last_gtk_key_idx, 0, 1, NULL, 0,
					zero, hapd->last_gtk_len,
					KEY_FLAG_GROUP_TX_DEFAULT) < 0)
			return -1;

		/* Set the previously configured key to reset its TSC */
		return hostapd_drv_set_key(hapd->conf->iface, hapd,
					   hapd->last_gtk_alg,
					   broadcast_ether_addr,
					   hapd->last_gtk_key_idx, 0, 1, NULL,
					   0, hapd->last_gtk,
					   hapd->last_gtk_len,
					   KEY_FLAG_GROUP_TX_DEFAULT);
	}

	sta = ap_get_sta(hapd, addr);
	if (!sta)
		return -1;

	if (sta->last_tk_alg == WPA_ALG_NONE)
		return -1;

	wpa_printf(MSG_INFO, "TESTING: Reset PN for " MACSTR,
		   MAC2STR(sta->addr));

	/* First, use a zero key to avoid any possible duplicate key avoidance
	 * in the driver. */
	if (hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg,
				sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 0,
				zero, sta->last_tk_len,
				KEY_FLAG_PAIRWISE_RX_TX) < 0)
		return -1;

	/* Set the previously configured key to reset its TSC/RSC */
	return hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg,
				   sta->addr, sta->last_tk_key_idx, 0, 1, NULL,
				   0, sta->last_tk, sta->last_tk_len,
				   KEY_FLAG_PAIRWISE_RX_TX);
}


static int hostapd_ctrl_set_key(struct hostapd_data *hapd, const char *cmd)
{
	u8 addr[ETH_ALEN];
	const char *pos = cmd;
	enum wpa_alg alg;
	enum key_flag key_flag;
	int idx, set_tx;
	u8 seq[6], key[WPA_TK_MAX_LEN];
	size_t key_len;

	/* parameters: alg addr idx set_tx seq key key_flag */

	alg = atoi(pos);
	pos = os_strchr(pos, ' ');
	if (!pos)
		return -1;
	pos++;
	if (hwaddr_aton(pos, addr))
		return -1;
	pos += 17;
	if (*pos != ' ')
		return -1;
	pos++;
	idx = atoi(pos);
	pos = os_strchr(pos, ' ');
	if (!pos)
		return -1;
	pos++;
	set_tx = atoi(pos);
	pos = os_strchr(pos, ' ');
	if (!pos)
		return -1;
	pos++;
	if (hexstr2bin(pos, seq, sizeof(seq)) < 0)
		return -1;
	pos += 2 * 6;
	if (*pos != ' ')
		return -1;
	pos++;
	if (!os_strchr(pos, ' '))
		return -1;
	key_len = (os_strchr(pos, ' ') - pos) / 2;
	if (hexstr2bin(pos, key, key_len) < 0)
		return -1;
	pos += 2 * key_len;
	if (*pos != ' ')
		return -1;

	pos++;
	key_flag = atoi(pos);
	pos = os_strchr(pos, ' ');
	if (pos)
		return -1;

	wpa_printf(MSG_INFO, "TESTING: Set key");
	return hostapd_drv_set_key(hapd->conf->iface, hapd, alg, addr, idx, 0,
				   set_tx, seq, 6, key, key_len, key_flag);
}


static void restore_tk(void *ctx1, void *ctx2)
{
	struct hostapd_data *hapd = ctx1;
	struct sta_info *sta = ctx2;

	wpa_printf(MSG_INFO, "TESTING: Restore TK for " MACSTR,
		   MAC2STR(sta->addr));
	/* This does not really restore the TSC properly, so this will result
	 * in replay protection issues for now since there is no clean way of
	 * preventing encryption of a single EAPOL frame. */
	hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg,
			    sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 0,
			    sta->last_tk, sta->last_tk_len,
			    KEY_FLAG_PAIRWISE_RX_TX);
}


static int hostapd_ctrl_resend_m1(struct hostapd_data *hapd, const char *cmd)
{
	struct sta_info *sta;
	u8 addr[ETH_ALEN];
	int plain = os_strstr(cmd, "plaintext") != NULL;

	if (hwaddr_aton(cmd, addr))
		return -1;

	sta = ap_get_sta(hapd, addr);
	if (!sta || !sta->wpa_sm)
		return -1;

	if (plain && sta->last_tk_alg == WPA_ALG_NONE)
		plain = 0; /* no need for special processing */
	if (plain) {
		wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR,
			   MAC2STR(sta->addr));
		hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE,
				    sta->addr, sta->last_tk_key_idx, 0, 0, NULL,
				    0, NULL, 0, KEY_FLAG_PAIRWISE);
	}

	wpa_printf(MSG_INFO, "TESTING: Send M1 to " MACSTR, MAC2STR(sta->addr));
	return wpa_auth_resend_m1(sta->wpa_sm,
				  os_strstr(cmd, "change-anonce") != NULL,
				  plain ? restore_tk : NULL, hapd, sta);
}


static int hostapd_ctrl_resend_m3(struct hostapd_data *hapd, const char *cmd)
{
	struct sta_info *sta;
	u8 addr[ETH_ALEN];
	int plain = os_strstr(cmd, "plaintext") != NULL;

	if (hwaddr_aton(cmd, addr))
		return -1;

	sta = ap_get_sta(hapd, addr);
	if (!sta || !sta->wpa_sm)
		return -1;

	if (plain && sta->last_tk_alg == WPA_ALG_NONE)
		plain = 0; /* no need for special processing */
	if (plain) {
		wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR,
			   MAC2STR(sta->addr));
		hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE,
				    sta->addr, sta->last_tk_key_idx, 0, 0, NULL,
				    0, NULL, 0, KEY_FLAG_PAIRWISE);
	}

	wpa_printf(MSG_INFO, "TESTING: Send M3 to " MACSTR, MAC2STR(sta->addr));
	return wpa_auth_resend_m3(sta->wpa_sm,
				  plain ? restore_tk : NULL, hapd, sta);
}


static int hostapd_ctrl_resend_group_m1(struct hostapd_data *hapd,
					const char *cmd)
{
	struct sta_info *sta;
	u8 addr[ETH_ALEN];
	int plain = os_strstr(cmd, "plaintext") != NULL;

	if (hwaddr_aton(cmd, addr))
		return -1;

	sta = ap_get_sta(hapd, addr);
	if (!sta || !sta->wpa_sm)
		return -1;

	if (plain && sta->last_tk_alg == WPA_ALG_NONE)
		plain = 0; /* no need for special processing */
	if (plain) {
		wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR,
			   MAC2STR(sta->addr));
		hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE,
				    sta->addr, sta->last_tk_key_idx, 0, 0, NULL,
				    0, NULL, 0, KEY_FLAG_PAIRWISE);
	}

	wpa_printf(MSG_INFO,
		   "TESTING: Send group M1 for the same GTK and zero RSC to "
		   MACSTR, MAC2STR(sta->addr));
	return wpa_auth_resend_group_m1(sta->wpa_sm,
					plain ? restore_tk : NULL, hapd, sta);
}


static int hostapd_ctrl_get_pmk(struct hostapd_data *hapd, const char *cmd,
				char *buf, size_t buflen)
{
	struct sta_info *sta;
	u8 addr[ETH_ALEN];
	const u8 *pmk;
	int pmk_len;

	if (hwaddr_aton(cmd, addr))
		return -1;

	sta = ap_get_sta(hapd, addr);
	if (!sta || !sta->wpa_sm) {
		wpa_printf(MSG_DEBUG, "No STA WPA state machine for " MACSTR,
			   MAC2STR(addr));
		return -1;
	}
	pmk = wpa_auth_get_pmk(sta->wpa_sm, &pmk_len);
	if (!pmk) {
		wpa_printf(MSG_DEBUG, "No PMK stored for " MACSTR,
			   MAC2STR(addr));
		return -1;
	}

	return wpa_snprintf_hex(buf, buflen, pmk, pmk_len);
}

#endif /* CONFIG_TESTING_OPTIONS */


#ifdef NEED_AP_MLME
static int hostapd_ctrl_check_freq_params(struct hostapd_freq_params *params)
{
	switch (params->bandwidth) {
	case 0:
		/* bandwidth not specified: use 20 MHz by default */
		/* fall-through */
	case 20:
		if (params->center_freq1 &&
		    params->center_freq1 != params->freq)
			return -1;

		if (params->center_freq2 || params->sec_channel_offset)
			return -1;
		break;
	case 40:
		if (params->center_freq2 || !params->sec_channel_offset)
			return -1;

		if (!params->center_freq1)
			break;
		switch (params->sec_channel_offset) {
		case 1:
			if (params->freq + 10 != params->center_freq1)
				return -1;
			break;
		case -1:
			if (params->freq - 10 != params->center_freq1)
				return -1;
			break;
		default:
			return -1;
		}
		break;
	case 80:
		if (!params->center_freq1 || !params->sec_channel_offset)
			return 1;

		switch (params->sec_channel_offset) {
		case 1:
			if (params->freq - 10 != params->center_freq1 &&
			    params->freq + 30 != params->center_freq1)
				return 1;
			break;
		case -1:
			if (params->freq + 10 != params->center_freq1 &&
			    params->freq - 30 != params->center_freq1)
				return -1;
			break;
		default:
			return -1;
		}

		/* Adjacent and overlapped are not allowed for 80+80 */
		if (params->center_freq2 &&
		    params->center_freq1 - params->center_freq2 <= 80 &&
		    params->center_freq2 - params->center_freq1 <= 80)
			return 1;
		break;
	case 160:
		if (!params->center_freq1 || params->center_freq2 ||
		    !params->sec_channel_offset)
			return -1;

		switch (params->sec_channel_offset) {
		case 1:
			if (params->freq + 70 != params->center_freq1 &&
			    params->freq + 30 != params->center_freq1 &&
			    params->freq - 10 != params->center_freq1 &&
			    params->freq - 50 != params->center_freq1)
				return -1;
			break;
		case -1:
			if (params->freq + 50 != params->center_freq1 &&
			    params->freq + 10 != params->center_freq1 &&
			    params->freq - 30 != params->center_freq1 &&
			    params->freq - 70 != params->center_freq1)
				return -1;
			break;
		default:
			return -1;
		}
		break;
	default:
		return -1;
	}

	return 0;
}
#endif /* NEED_AP_MLME */


static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface,
					  char *pos)
{
#ifdef NEED_AP_MLME
	struct csa_settings settings;
	int ret;
	int dfs_range = 0;
	unsigned int i;
	int bandwidth;
	u8 chan;

	ret = hostapd_parse_csa_settings(pos, &settings);
	if (ret)
		return ret;

	ret = hostapd_ctrl_check_freq_params(&settings.freq_params);
	if (ret) {
		wpa_printf(MSG_INFO,
			   "chanswitch: invalid frequency settings provided");
		return ret;
	}

	switch (settings.freq_params.bandwidth) {
	case 40:
		bandwidth = CHAN_WIDTH_40;
		break;
	case 80:
		if (settings.freq_params.center_freq2)
			bandwidth = CHAN_WIDTH_80P80;
		else
			bandwidth = CHAN_WIDTH_80;
		break;
	case 160:
		bandwidth = CHAN_WIDTH_160;
		break;
	default:
		bandwidth = CHAN_WIDTH_20;
		break;
	}

	if (settings.freq_params.center_freq1)
		dfs_range += hostapd_is_dfs_overlap(
			iface, bandwidth, settings.freq_params.center_freq1);
	else
		dfs_range += hostapd_is_dfs_overlap(
			iface, bandwidth, settings.freq_params.freq);

	if (settings.freq_params.center_freq2)
		dfs_range += hostapd_is_dfs_overlap(
			iface, bandwidth, settings.freq_params.center_freq2);

	if (dfs_range) {
		ret = ieee80211_freq_to_chan(settings.freq_params.freq, &chan);
		if (ret == NUM_HOSTAPD_MODES) {
			wpa_printf(MSG_ERROR,
				   "Failed to get channel for (freq=%d, sec_channel_offset=%d, bw=%d)",
				   settings.freq_params.freq,
				   settings.freq_params.sec_channel_offset,
				   settings.freq_params.bandwidth);
			return -1;
		}

		settings.freq_params.channel = chan;

		wpa_printf(MSG_DEBUG,
			   "DFS/CAC to (channel=%u, freq=%d, sec_channel_offset=%d, bw=%d, center_freq1=%d)",
			   settings.freq_params.channel,
			   settings.freq_params.freq,
			   settings.freq_params.sec_channel_offset,
			   settings.freq_params.bandwidth,
			   settings.freq_params.center_freq1);

		/* Perform CAC and switch channel */
		hostapd_switch_channel_fallback(iface, &settings.freq_params);
		return 0;
	}

	for (i = 0; i < iface->num_bss; i++) {

		/* Save CHAN_SWITCH VHT config */
		hostapd_chan_switch_vht_config(
			iface->bss[i], settings.freq_params.vht_enabled);

		ret = hostapd_switch_channel(iface->bss[i], &settings);
		if (ret) {
			/* FIX: What do we do if CSA fails in the middle of
			 * submitting multi-BSS CSA requests? */
			return ret;
		}
	}

	return 0;
#else /* NEED_AP_MLME */
	return -1;
#endif /* NEED_AP_MLME */
}


static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply,
				  int reply_size, const char *param)
{
#ifdef RADIUS_SERVER
	if (os_strcmp(param, "radius_server") == 0) {
		return radius_server_get_mib(hapd->radius_srv, reply,
					     reply_size);
	}
#endif /* RADIUS_SERVER */
	return -1;
}


static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd,
				     char *buf, size_t buflen)
{
	int ret;
	char *pos;
	u8 *data = NULL;
	unsigned int vendor_id, subcmd;
	struct wpabuf *reply;
	size_t data_len = 0;

	/* cmd: <vendor id> <subcommand id> [<hex formatted data>] */
	vendor_id = strtoul(cmd, &pos, 16);
	if (!isblank((unsigned char) *pos))
		return -EINVAL;

	subcmd = strtoul(pos, &pos, 10);

	if (*pos != '\0') {
		if (!isblank((unsigned char) *pos++))
			return -EINVAL;
		data_len = os_strlen(pos);
	}

	if (data_len) {
		data_len /= 2;
		data = os_malloc(data_len);
		if (!data)
			return -ENOBUFS;

		if (hexstr2bin(pos, data, data_len)) {
			wpa_printf(MSG_DEBUG,
				   "Vendor command: wrong parameter format");
			os_free(data);
			return -EINVAL;
		}
	}

	reply = wpabuf_alloc((buflen - 1) / 2);
	if (!reply) {
		os_free(data);
		return -ENOBUFS;
	}

	ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len,
				     reply);

	if (ret == 0)
		ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply),
				       wpabuf_len(reply));

	wpabuf_free(reply);
	os_free(data);

	return ret;
}


static int hostapd_ctrl_iface_eapol_reauth(struct hostapd_data *hapd,
					   const char *cmd)
{
	u8 addr[ETH_ALEN];
	struct sta_info *sta;

	if (hwaddr_aton(cmd, addr))
		return -1;

	sta = ap_get_sta(hapd, addr);
	if (!sta || !sta->eapol_sm)
		return -1;

	eapol_auth_reauthenticate(sta->eapol_sm);
	return 0;
}


static int hostapd_ctrl_iface_eapol_set(struct hostapd_data *hapd, char *cmd)
{
	u8 addr[ETH_ALEN];
	struct sta_info *sta;
	char *pos = cmd, *param;

	if (hwaddr_aton(pos, addr) || pos[17] != ' ')
		return -1;
	pos += 18;
	param = pos;
	pos = os_strchr(pos, ' ');
	if (!pos)
		return -1;
	*pos++ = '\0';

	sta = ap_get_sta(hapd, addr);
	if (!sta || !sta->eapol_sm)
		return -1;

	return eapol_auth_set_conf(sta->eapol_sm, param, pos);
}


static int hostapd_ctrl_iface_log_level(struct hostapd_data *hapd, char *cmd,
					char *buf, size_t buflen)
{
	char *pos, *end, *stamp;
	int ret;

	/* cmd: "LOG_LEVEL [<level>]" */
	if (*cmd == '\0') {
		pos = buf;
		end = buf + buflen;
		ret = os_snprintf(pos, end - pos, "Current level: %s\n"
				  "Timestamp: %d\n",
				  debug_level_str(wpa_debug_level),
				  wpa_debug_timestamp);
		if (os_snprintf_error(end - pos, ret))
			ret = 0;

		return ret;
	}

	while (*cmd == ' ')
		cmd++;

	stamp = os_strchr(cmd, ' ');
	if (stamp) {
		*stamp++ = '\0';
		while (*stamp == ' ') {
			stamp++;
		}
	}

	if (os_strlen(cmd)) {
		int level = str_to_debug_level(cmd);
		if (level < 0)
			return -1;
		wpa_debug_level = level;
	}

	if (stamp && os_strlen(stamp))
		wpa_debug_timestamp = atoi(stamp);

	os_memcpy(buf, "OK\n", 3);
	return 3;
}


#ifdef NEED_AP_MLME
static int hostapd_ctrl_iface_track_sta_list(struct hostapd_data *hapd,
					     char *buf, size_t buflen)
{
	struct hostapd_iface *iface = hapd->iface;
	char *pos, *end;
	struct hostapd_sta_info *info;
	struct os_reltime now;

	if (!iface->num_sta_seen)
		return 0;

	sta_track_expire(iface, 0);

	pos = buf;
	end = buf + buflen;

	os_get_reltime(&now);
	dl_list_for_each_reverse(info, &iface->sta_seen,
				 struct hostapd_sta_info, list) {
		struct os_reltime age;
		int ret;

		os_reltime_sub(&now, &info->last_seen, &age);
		ret = os_snprintf(pos, end - pos, MACSTR " %u %d\n",
				  MAC2STR(info->addr), (unsigned int) age.sec,
				  info->ssi_signal);
		if (os_snprintf_error(end - pos, ret))
			break;
		pos += ret;
	}

	return pos - buf;
}
#endif /* NEED_AP_MLME */


static int hostapd_ctrl_iface_req_lci(struct hostapd_data *hapd,
				      const char *cmd)
{
	u8 addr[ETH_ALEN];

	if (hwaddr_aton(cmd, addr)) {
		wpa_printf(MSG_INFO, "CTRL: REQ_LCI: Invalid MAC address");
		return -1;
	}

	return hostapd_send_lci_req(hapd, addr);
}


static int hostapd_ctrl_iface_req_range(struct hostapd_data *hapd, char *cmd)
{
	u8 addr[ETH_ALEN];
	char *token, *context = NULL;
	int random_interval, min_ap;
	u8 responders[ETH_ALEN * RRM_RANGE_REQ_MAX_RESPONDERS];
	unsigned int n_responders;

	token = str_token(cmd, " ", &context);
	if (!token || hwaddr_aton(token, addr)) {
		wpa_printf(MSG_INFO,
			   "CTRL: REQ_RANGE - Bad destination address");
		return -1;
	}

	token = str_token(cmd, " ", &context);
	if (!token)
		return -1;

	random_interval = atoi(token);
	if (random_interval < 0 || random_interval > 0xffff)
		return -1;

	token = str_token(cmd, " ", &context);
	if (!token)
		return -1;

	min_ap = atoi(token);
	if (min_ap <= 0 || min_ap > WLAN_RRM_RANGE_REQ_MAX_MIN_AP)
		return -1;

	n_responders = 0;
	while ((token = str_token(cmd, " ", &context))) {
		if (n_responders == RRM_RANGE_REQ_MAX_RESPONDERS) {
			wpa_printf(MSG_INFO,
				   "CTRL: REQ_RANGE: Too many responders");
			return -1;
		}

		if (hwaddr_aton(token, responders + n_responders * ETH_ALEN)) {
			wpa_printf(MSG_INFO,
				   "CTRL: REQ_RANGE: Bad responder address");
			return -1;
		}

		n_responders++;
	}

	if (!n_responders) {
		wpa_printf(MSG_INFO,
			   "CTRL: REQ_RANGE - No FTM responder address");
		return -1;
	}

	return hostapd_send_range_req(hapd, addr, random_interval, min_ap,
				      responders, n_responders);
}


static int hostapd_ctrl_iface_req_beacon(struct hostapd_data *hapd,
					 const char *cmd, char *reply,
					 size_t reply_size)
{
	u8 addr[ETH_ALEN];
	const char *pos;
	struct wpabuf *req;
	int ret;
	u8 req_mode = 0;

	if (hwaddr_aton(cmd, addr))
		return -1;
	pos = os_strchr(cmd, ' ');
	if (!pos)
		return -1;
	pos++;
	if (os_strncmp(pos, "req_mode=", 9) == 0) {