wpa_supplicant/ctrl_iface.c

/*
 * WPA Supplicant / Control interface (shared code for all backends)
 * Copyright (c) 2004-2015, 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"
#ifdef CONFIG_TESTING_OPTIONS
#include <net/ethernet.h>
#include <netinet/ip.h>
#endif /* CONFIG_TESTING_OPTIONS */

#include "utils/common.h"
#include "utils/eloop.h"
#include "utils/uuid.h"
#include "common/version.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "common/wpa_ctrl.h"
#include "crypto/tls.h"
#include "ap/hostapd.h"
#include "eap_peer/eap.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "rsn_supp/wpa.h"
#include "rsn_supp/preauth.h"
#include "rsn_supp/pmksa_cache.h"
#include "l2_packet/l2_packet.h"
#include "wps/wps.h"
#include "config.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "wps_supplicant.h"
#include "ibss_rsn.h"
#include "ap.h"
#include "p2p_supplicant.h"
#include "p2p/p2p.h"
#include "hs20_supplicant.h"
#include "wifi_display.h"
#include "notify.h"
#include "bss.h"
#include "scan.h"
#include "ctrl_iface.h"
#include "interworking.h"
#include "blacklist.h"
#include "autoscan.h"
#include "wnm_sta.h"
#include "offchannel.h"
#include "drivers/driver.h"
#include "mesh.h"

static int wpa_supplicant_global_iface_list(struct wpa_global *global,
					    char *buf, int len);
static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global,
						  char *buf, int len);
static int * freq_range_to_channel_list(struct wpa_supplicant *wpa_s,
					char *val);

static int set_bssid_filter(struct wpa_supplicant *wpa_s, char *val)
{
	char *pos;
	u8 addr[ETH_ALEN], *filter = NULL, *n;
	size_t count = 0;

	pos = val;
	while (pos) {
		if (*pos == '\0')
			break;
		if (hwaddr_aton(pos, addr)) {
			os_free(filter);
			return -1;
		}
		n = os_realloc_array(filter, count + 1, ETH_ALEN);
		if (n == NULL) {
			os_free(filter);
			return -1;
		}
		filter = n;
		os_memcpy(filter + count * ETH_ALEN, addr, ETH_ALEN);
		count++;

		pos = os_strchr(pos, ' ');
		if (pos)
			pos++;
	}

	wpa_hexdump(MSG_DEBUG, "bssid_filter", filter, count * ETH_ALEN);
	os_free(wpa_s->bssid_filter);
	wpa_s->bssid_filter = filter;
	wpa_s->bssid_filter_count = count;

	return 0;
}


static int set_disallow_aps(struct wpa_supplicant *wpa_s, char *val)
{
	char *pos;
	u8 addr[ETH_ALEN], *bssid = NULL, *n;
	struct wpa_ssid_value *ssid = NULL, *ns;
	size_t count = 0, ssid_count = 0;
	struct wpa_ssid *c;

	/*
	 * disallow_list ::= <ssid_spec> | <bssid_spec> | <disallow_list> | ""
	 * SSID_SPEC ::= ssid <SSID_HEX>
	 * BSSID_SPEC ::= bssid <BSSID_HEX>
	 */

	pos = val;
	while (pos) {
		if (*pos == '\0')
			break;
		if (os_strncmp(pos, "bssid ", 6) == 0) {
			int res;
			pos += 6;
			res = hwaddr_aton2(pos, addr);
			if (res < 0) {
				os_free(ssid);
				os_free(bssid);
				wpa_printf(MSG_DEBUG, "Invalid disallow_aps "
					   "BSSID value '%s'", pos);
				return -1;
			}
			pos += res;
			n = os_realloc_array(bssid, count + 1, ETH_ALEN);
			if (n == NULL) {
				os_free(ssid);
				os_free(bssid);
				return -1;
			}
			bssid = n;
			os_memcpy(bssid + count * ETH_ALEN, addr, ETH_ALEN);
			count++;
		} else if (os_strncmp(pos, "ssid ", 5) == 0) {
			char *end;
			pos += 5;

			end = pos;
			while (*end) {
				if (*end == '\0' || *end == ' ')
					break;
				end++;
			}

			ns = os_realloc_array(ssid, ssid_count + 1,
					      sizeof(struct wpa_ssid_value));
			if (ns == NULL) {
				os_free(ssid);
				os_free(bssid);
				return -1;
			}
			ssid = ns;

			if ((end - pos) & 0x01 ||
			    end - pos > 2 * SSID_MAX_LEN ||
			    hexstr2bin(pos, ssid[ssid_count].ssid,
				       (end - pos) / 2) < 0) {
				os_free(ssid);
				os_free(bssid);
				wpa_printf(MSG_DEBUG, "Invalid disallow_aps "
					   "SSID value '%s'", pos);
				return -1;
			}
			ssid[ssid_count].ssid_len = (end - pos) / 2;
			wpa_hexdump_ascii(MSG_DEBUG, "disallow_aps SSID",
					  ssid[ssid_count].ssid,
					  ssid[ssid_count].ssid_len);
			ssid_count++;
			pos = end;
		} else {
			wpa_printf(MSG_DEBUG, "Unexpected disallow_aps value "
				   "'%s'", pos);
			os_free(ssid);
			os_free(bssid);
			return -1;
		}

		pos = os_strchr(pos, ' ');
		if (pos)
			pos++;
	}

	wpa_hexdump(MSG_DEBUG, "disallow_aps_bssid", bssid, count * ETH_ALEN);
	os_free(wpa_s->disallow_aps_bssid);
	wpa_s->disallow_aps_bssid = bssid;
	wpa_s->disallow_aps_bssid_count = count;

	wpa_printf(MSG_DEBUG, "disallow_aps_ssid_count %d", (int) ssid_count);
	os_free(wpa_s->disallow_aps_ssid);
	wpa_s->disallow_aps_ssid = ssid;
	wpa_s->disallow_aps_ssid_count = ssid_count;

	if (!wpa_s->current_ssid || wpa_s->wpa_state < WPA_AUTHENTICATING)
		return 0;

	c = wpa_s->current_ssid;
	if (c->mode != WPAS_MODE_INFRA && c->mode != WPAS_MODE_IBSS)
		return 0;

	if (!disallowed_bssid(wpa_s, wpa_s->bssid) &&
	    !disallowed_ssid(wpa_s, c->ssid, c->ssid_len))
		return 0;

	wpa_printf(MSG_DEBUG, "Disconnect and try to find another network "
		   "because current AP was marked disallowed");

#ifdef CONFIG_SME
	wpa_s->sme.prev_bssid_set = 0;
#endif /* CONFIG_SME */
	wpa_s->reassociate = 1;
	wpa_s->own_disconnect_req = 1;
	wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
	wpa_supplicant_req_scan(wpa_s, 0, 0);

	return 0;
}


#ifndef CONFIG_NO_CONFIG_BLOBS
static int wpas_ctrl_set_blob(struct wpa_supplicant *wpa_s, char *pos)
{
	char *name = pos;
	struct wpa_config_blob *blob;
	size_t len;

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

	wpa_printf(MSG_DEBUG, "CTRL: Set blob '%s'", name);
	blob = os_zalloc(sizeof(*blob));
	if (blob == NULL)
		return -1;
	blob->name = os_strdup(name);
	blob->data = os_malloc(len / 2);
	if (blob->name == NULL || blob->data == NULL) {
		wpa_config_free_blob(blob);
		return -1;
	}

	if (hexstr2bin(pos, blob->data, len / 2) < 0) {
		wpa_printf(MSG_DEBUG, "CTRL: Invalid blob hex data");
		wpa_config_free_blob(blob);
		return -1;
	}
	blob->len = len / 2;

	wpa_config_set_blob(wpa_s->conf, blob);

	return 0;
}
#endif /* CONFIG_NO_CONFIG_BLOBS */


static int wpas_ctrl_pno(struct wpa_supplicant *wpa_s, char *cmd)
{
	char *params;
	char *pos;
	int *freqs = NULL;
	int ret;

	if (atoi(cmd)) {
		params = os_strchr(cmd, ' ');
		os_free(wpa_s->manual_sched_scan_freqs);
		if (params) {
			params++;
			pos = os_strstr(params, "freq=");
			if (pos)
				freqs = freq_range_to_channel_list(wpa_s,
								   pos + 5);
		}
		wpa_s->manual_sched_scan_freqs = freqs;
		ret = wpas_start_pno(wpa_s);
	} else {
		ret = wpas_stop_pno(wpa_s);
	}
	return ret;
}


static int wpa_supplicant_ctrl_iface_set(struct wpa_supplicant *wpa_s,
					 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 (os_strcasecmp(cmd, "EAPOL::heldPeriod") == 0) {
		eapol_sm_configure(wpa_s->eapol,
				   atoi(value), -1, -1, -1);
	} else if (os_strcasecmp(cmd, "EAPOL::authPeriod") == 0) {
		eapol_sm_configure(wpa_s->eapol,
				   -1, atoi(value), -1, -1);
	} else if (os_strcasecmp(cmd, "EAPOL::startPeriod") == 0) {
		eapol_sm_configure(wpa_s->eapol,
				   -1, -1, atoi(value), -1);
	} else if (os_strcasecmp(cmd, "EAPOL::maxStart") == 0) {
		eapol_sm_configure(wpa_s->eapol,
				   -1, -1, -1, atoi(value));
	} else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKLifetime") == 0) {
		if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
				     atoi(value)))
			ret = -1;
	} else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKReauthThreshold") ==
		   0) {
		if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
				     atoi(value)))
			ret = -1;
	} else if (os_strcasecmp(cmd, "dot11RSNAConfigSATimeout") == 0) {
		if (wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, atoi(value)))
			ret = -1;
	} else if (os_strcasecmp(cmd, "wps_fragment_size") == 0) {
		wpa_s->wps_fragment_size = atoi(value);
#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);
		}
	} 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 */
	} else if (os_strcasecmp(cmd, "ampdu") == 0) {
		if (wpa_drv_ampdu(wpa_s, atoi(value)) < 0)
			ret = -1;
#ifdef CONFIG_TDLS
#ifdef CONFIG_TDLS_TESTING
	} else if (os_strcasecmp(cmd, "tdls_testing") == 0) {
		extern unsigned int tdls_testing;
		tdls_testing = strtol(value, NULL, 0);
		wpa_printf(MSG_DEBUG, "TDLS: tdls_testing=0x%x", tdls_testing);
#endif /* CONFIG_TDLS_TESTING */
	} else if (os_strcasecmp(cmd, "tdls_disabled") == 0) {
		int disabled = atoi(value);
		wpa_printf(MSG_DEBUG, "TDLS: tdls_disabled=%d", disabled);
		if (disabled) {
			if (wpa_drv_tdls_oper(wpa_s, TDLS_DISABLE, NULL) < 0)
				ret = -1;
		} else if (wpa_drv_tdls_oper(wpa_s, TDLS_ENABLE, NULL) < 0)
			ret = -1;
		wpa_tdls_enable(wpa_s->wpa, !disabled);
#endif /* CONFIG_TDLS */
	} else if (os_strcasecmp(cmd, "pno") == 0) {
		ret = wpas_ctrl_pno(wpa_s, value);
	} else if (os_strcasecmp(cmd, "radio_disabled") == 0) {
		int disabled = atoi(value);
		if (wpa_drv_radio_disable(wpa_s, disabled) < 0)
			ret = -1;
		else if (disabled)
			wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
	} else if (os_strcasecmp(cmd, "uapsd") == 0) {
		if (os_strcmp(value, "disable") == 0)
			wpa_s->set_sta_uapsd = 0;
		else {
			int be, bk, vi, vo;
			char *pos;
			/* format: BE,BK,VI,VO;max SP Length */
			be = atoi(value);
			pos = os_strchr(value, ',');
			if (pos == NULL)
				return -1;
			pos++;
			bk = atoi(pos);
			pos = os_strchr(pos, ',');
			if (pos == NULL)
				return -1;
			pos++;
			vi = atoi(pos);
			pos = os_strchr(pos, ',');
			if (pos == NULL)
				return -1;
			pos++;
			vo = atoi(pos);
			/* ignore max SP Length for now */

			wpa_s->set_sta_uapsd = 1;
			wpa_s->sta_uapsd = 0;
			if (be)
				wpa_s->sta_uapsd |= BIT(0);
			if (bk)
				wpa_s->sta_uapsd |= BIT(1);
			if (vi)
				wpa_s->sta_uapsd |= BIT(2);
			if (vo)
				wpa_s->sta_uapsd |= BIT(3);
		}
	} else if (os_strcasecmp(cmd, "ps") == 0) {
		ret = wpa_drv_set_p2p_powersave(wpa_s, atoi(value), -1, -1);
#ifdef CONFIG_WIFI_DISPLAY
	} else if (os_strcasecmp(cmd, "wifi_display") == 0) {
		int enabled = !!atoi(value);
		if (enabled && !wpa_s->global->p2p)
			ret = -1;
		else
			wifi_display_enable(wpa_s->global, enabled);
#endif /* CONFIG_WIFI_DISPLAY */
	} else if (os_strcasecmp(cmd, "bssid_filter") == 0) {
		ret = set_bssid_filter(wpa_s, value);
	} else if (os_strcasecmp(cmd, "disallow_aps") == 0) {
		ret = set_disallow_aps(wpa_s, value);
	} else if (os_strcasecmp(cmd, "no_keep_alive") == 0) {
		wpa_s->no_keep_alive = !!atoi(value);
#ifdef CONFIG_TESTING_OPTIONS
	} else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) {
		wpa_s->ext_mgmt_frame_handling = !!atoi(value);
	} else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) {
		wpa_s->ext_eapol_frame_io = !!atoi(value);
#ifdef CONFIG_AP
		if (wpa_s->ap_iface) {
			wpa_s->ap_iface->bss[0]->ext_eapol_frame_io =
				wpa_s->ext_eapol_frame_io;
		}
#endif /* CONFIG_AP */
	} else if (os_strcasecmp(cmd, "extra_roc_dur") == 0) {
		wpa_s->extra_roc_dur = atoi(value);
	} else if (os_strcasecmp(cmd, "test_failure") == 0) {
		wpa_s->test_failure = atoi(value);
#endif /* CONFIG_TESTING_OPTIONS */
#ifndef CONFIG_NO_CONFIG_BLOBS
	} else if (os_strcmp(cmd, "blob") == 0) {
		ret = wpas_ctrl_set_blob(wpa_s, value);
#endif /* CONFIG_NO_CONFIG_BLOBS */
	} else if (os_strcasecmp(cmd, "setband") == 0) {
		if (os_strcmp(value, "AUTO") == 0)
			wpa_s->setband = WPA_SETBAND_AUTO;
		else if (os_strcmp(value, "5G") == 0)
			wpa_s->setband = WPA_SETBAND_5G;
		else if (os_strcmp(value, "2G") == 0)
			wpa_s->setband = WPA_SETBAND_2G;
		else
			ret = -1;
	} else {
		value[-1] = '=';
		ret = wpa_config_process_global(wpa_s->conf, cmd, -1);
		if (ret == 0)
			wpa_supplicant_update_config(wpa_s);
	}

	return ret;
}


static int wpa_supplicant_ctrl_iface_get(struct wpa_supplicant *wpa_s,
					 char *cmd, char *buf, size_t buflen)
{
	int res = -1;

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

	if (os_strcmp(cmd, "version") == 0) {
		res = os_snprintf(buf, buflen, "%s", VERSION_STR);
	} else if (os_strcasecmp(cmd, "country") == 0) {
		if (wpa_s->conf->country[0] && wpa_s->conf->country[1])
			res = os_snprintf(buf, buflen, "%c%c",
					  wpa_s->conf->country[0],
					  wpa_s->conf->country[1]);
#ifdef CONFIG_WIFI_DISPLAY
	} else if (os_strcasecmp(cmd, "wifi_display") == 0) {
		int enabled;
		if (wpa_s->global->p2p == NULL ||
		    wpa_s->global->p2p_disabled)
			enabled = 0;
		else
			enabled = wpa_s->global->wifi_display;
		res = os_snprintf(buf, buflen, "%d", enabled);
#endif /* CONFIG_WIFI_DISPLAY */
#ifdef CONFIG_TESTING_GET_GTK
	} else if (os_strcmp(cmd, "gtk") == 0) {
		if (wpa_s->last_gtk_len == 0)
			return -1;
		res = wpa_snprintf_hex(buf, buflen, wpa_s->last_gtk,
				       wpa_s->last_gtk_len);
		return res;
#endif /* CONFIG_TESTING_GET_GTK */
	} else if (os_strcmp(cmd, "tls_library") == 0) {
		res = tls_get_library_version(buf, buflen);
	} else {
		res = wpa_config_get_value(cmd, wpa_s->conf, buf, buflen);
	}

	if (os_snprintf_error(buflen, res))
		return -1;
	return res;
}


#ifdef IEEE8021X_EAPOL
static int wpa_supplicant_ctrl_iface_preauth(struct wpa_supplicant *wpa_s,
					     char *addr)
{
	u8 bssid[ETH_ALEN];
	struct wpa_ssid *ssid = wpa_s->current_ssid;

	if (hwaddr_aton(addr, bssid)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH: invalid address "
			   "'%s'", addr);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH " MACSTR, MAC2STR(bssid));
	rsn_preauth_deinit(wpa_s->wpa);
	if (rsn_preauth_init(wpa_s->wpa, bssid, ssid ? &ssid->eap : NULL))
		return -1;

	return 0;
}
#endif /* IEEE8021X_EAPOL */


#ifdef CONFIG_PEERKEY
/* MLME-STKSTART.request(peer) */
static int wpa_supplicant_ctrl_iface_stkstart(
	struct wpa_supplicant *wpa_s, char *addr)
{
	u8 peer[ETH_ALEN];

	if (hwaddr_aton(addr, peer)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART: invalid "
			   "address '%s'", addr);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART " MACSTR,
		   MAC2STR(peer));

	return wpa_sm_stkstart(wpa_s->wpa, peer);
}
#endif /* CONFIG_PEERKEY */


#ifdef CONFIG_TDLS

static int wpa_supplicant_ctrl_iface_tdls_discover(
	struct wpa_supplicant *wpa_s, char *addr)
{
	u8 peer[ETH_ALEN];
	int ret;

	if (hwaddr_aton(addr, peer)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_DISCOVER: invalid "
			   "address '%s'", addr);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_DISCOVER " MACSTR,
		   MAC2STR(peer));

	if (wpa_tdls_is_external_setup(wpa_s->wpa))
		ret = wpa_tdls_send_discovery_request(wpa_s->wpa, peer);
	else
		ret = wpa_drv_tdls_oper(wpa_s, TDLS_DISCOVERY_REQ, peer);

	return ret;
}


static int wpa_supplicant_ctrl_iface_tdls_setup(
	struct wpa_supplicant *wpa_s, char *addr)
{
	u8 peer[ETH_ALEN];
	int ret;

	if (hwaddr_aton(addr, peer)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_SETUP: invalid "
			   "address '%s'", addr);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_SETUP " MACSTR,
		   MAC2STR(peer));

	if ((wpa_s->conf->tdls_external_control) &&
	    wpa_tdls_is_external_setup(wpa_s->wpa))
		return wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, peer);

	wpa_tdls_remove(wpa_s->wpa, peer);

	if (wpa_tdls_is_external_setup(wpa_s->wpa))
		ret = wpa_tdls_start(wpa_s->wpa, peer);
	else
		ret = wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, peer);

	return ret;
}


static int wpa_supplicant_ctrl_iface_tdls_teardown(
	struct wpa_supplicant *wpa_s, char *addr)
{
	u8 peer[ETH_ALEN];
	int ret;

	if (os_strcmp(addr, "*") == 0) {
		/* remove everyone */
		wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_TEARDOWN *");
		wpa_tdls_teardown_peers(wpa_s->wpa);
		return 0;
	}

	if (hwaddr_aton(addr, peer)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_TEARDOWN: invalid "
			   "address '%s'", addr);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_TEARDOWN " MACSTR,
		   MAC2STR(peer));

	if ((wpa_s->conf->tdls_external_control) &&
	    wpa_tdls_is_external_setup(wpa_s->wpa))
		return wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, peer);

	if (wpa_tdls_is_external_setup(wpa_s->wpa))
		ret = wpa_tdls_teardown_link(
			wpa_s->wpa, peer,
			WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED);
	else
		ret = wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, peer);

	return ret;
}


static int ctrl_iface_get_capability_tdls(
	struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
{
	int ret;

	ret = os_snprintf(buf, buflen, "%s\n",
			  wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT ?
			  (wpa_s->drv_flags &
			   WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP ?
			   "EXTERNAL" : "INTERNAL") : "UNSUPPORTED");
	if (os_snprintf_error(buflen, ret))
		return -1;
	return ret;
}


static int wpa_supplicant_ctrl_iface_tdls_chan_switch(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	u8 peer[ETH_ALEN];
	struct hostapd_freq_params freq_params;
	u8 oper_class;
	char *pos, *end;

	if (!wpa_tdls_is_external_setup(wpa_s->wpa)) {
		wpa_printf(MSG_INFO,
			   "tdls_chanswitch: Only supported with external setup");
		return -1;
	}

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

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

	oper_class = strtol(pos, &end, 10);
	if (pos == end) {
		wpa_printf(MSG_INFO,
			   "tdls_chanswitch: Invalid op class provided");
		return -1;
	}

	pos = end;
	freq_params.freq = atoi(pos);
	if (freq_params.freq == 0) {
		wpa_printf(MSG_INFO, "tdls_chanswitch: Invalid freq provided");
		return -1;
	}

#define SET_FREQ_SETTING(str) \
	do { \
		const char *pos2 = os_strstr(pos, " " #str "="); \
		if (pos2) { \
			pos2 += sizeof(" " #str "=") - 1; \
			freq_params.str = atoi(pos2); \
		} \
	} while (0)

	SET_FREQ_SETTING(center_freq1);
	SET_FREQ_SETTING(center_freq2);
	SET_FREQ_SETTING(bandwidth);
	SET_FREQ_SETTING(sec_channel_offset);
#undef SET_FREQ_SETTING

	freq_params.ht_enabled = !!os_strstr(pos, " ht");
	freq_params.vht_enabled = !!os_strstr(pos, " vht");

	if (hwaddr_aton(cmd, peer)) {
		wpa_printf(MSG_DEBUG,
			   "CTRL_IFACE TDLS_CHAN_SWITCH: Invalid address '%s'",
			   cmd);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_CHAN_SWITCH " MACSTR
		   " OP CLASS %d FREQ %d CENTER1 %d CENTER2 %d BW %d SEC_OFFSET %d%s%s",
		   MAC2STR(peer), oper_class, freq_params.freq,
		   freq_params.center_freq1, freq_params.center_freq2,
		   freq_params.bandwidth, freq_params.sec_channel_offset,
		   freq_params.ht_enabled ? " HT" : "",
		   freq_params.vht_enabled ? " VHT" : "");

	return wpa_tdls_enable_chan_switch(wpa_s->wpa, peer, oper_class,
					   &freq_params);
}


static int wpa_supplicant_ctrl_iface_tdls_cancel_chan_switch(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	u8 peer[ETH_ALEN];

	if (!wpa_tdls_is_external_setup(wpa_s->wpa)) {
		wpa_printf(MSG_INFO,
			   "tdls_chanswitch: Only supported with external setup");
		return -1;
	}

	if (hwaddr_aton(cmd, peer)) {
		wpa_printf(MSG_DEBUG,
			   "CTRL_IFACE TDLS_CANCEL_CHAN_SWITCH: Invalid address '%s'",
			   cmd);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE TDLS_CANCEL_CHAN_SWITCH " MACSTR,
		   MAC2STR(peer));

	return wpa_tdls_disable_chan_switch(wpa_s->wpa, peer);
}

#endif /* CONFIG_TDLS */


static int wmm_ac_ctrl_addts(struct wpa_supplicant *wpa_s, char *cmd)
{
	char *token, *context = NULL;
	struct wmm_ac_ts_setup_params params = {
		.tsid = 0xff,
		.direction = 0xff,
	};

	while ((token = str_token(cmd, " ", &context))) {
		if (sscanf(token, "tsid=%i", &params.tsid) == 1 ||
		    sscanf(token, "up=%i", &params.user_priority) == 1 ||
		    sscanf(token, "nominal_msdu_size=%i",
			   &params.nominal_msdu_size) == 1 ||
		    sscanf(token, "mean_data_rate=%i",
			   &params.mean_data_rate) == 1 ||
		    sscanf(token, "min_phy_rate=%i",
			   &params.minimum_phy_rate) == 1 ||
		    sscanf(token, "sba=%i",
			   &params.surplus_bandwidth_allowance) == 1)
			continue;

		if (os_strcasecmp(token, "downlink") == 0) {
			params.direction = WMM_TSPEC_DIRECTION_DOWNLINK;
		} else if (os_strcasecmp(token, "uplink") == 0) {
			params.direction = WMM_TSPEC_DIRECTION_UPLINK;
		} else if (os_strcasecmp(token, "bidi") == 0) {
			params.direction = WMM_TSPEC_DIRECTION_BI_DIRECTIONAL;
		} else if (os_strcasecmp(token, "fixed_nominal_msdu") == 0) {
			params.fixed_nominal_msdu = 1;
		} else {
			wpa_printf(MSG_DEBUG,
				   "CTRL: Invalid WMM_AC_ADDTS parameter: '%s'",
				   token);
			return -1;
		}

	}

	return wpas_wmm_ac_addts(wpa_s, &params);
}


static int wmm_ac_ctrl_delts(struct wpa_supplicant *wpa_s, char *cmd)
{
	u8 tsid = atoi(cmd);

	return wpas_wmm_ac_delts(wpa_s, tsid);
}


#ifdef CONFIG_IEEE80211R
static int wpa_supplicant_ctrl_iface_ft_ds(
	struct wpa_supplicant *wpa_s, char *addr)
{
	u8 target_ap[ETH_ALEN];
	struct wpa_bss *bss;
	const u8 *mdie;

	if (hwaddr_aton(addr, target_ap)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE FT_DS: invalid "
			   "address '%s'", addr);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE FT_DS " MACSTR, MAC2STR(target_ap));

	bss = wpa_bss_get_bssid(wpa_s, target_ap);
	if (bss)
		mdie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
	else
		mdie = NULL;

	return wpa_ft_start_over_ds(wpa_s->wpa, target_ap, mdie);
}
#endif /* CONFIG_IEEE80211R */


#ifdef CONFIG_WPS
static int wpa_supplicant_ctrl_iface_wps_pbc(struct wpa_supplicant *wpa_s,
					     char *cmd)
{
	u8 bssid[ETH_ALEN], *_bssid = bssid;
#ifdef CONFIG_P2P
	u8 p2p_dev_addr[ETH_ALEN];
#endif /* CONFIG_P2P */
#ifdef CONFIG_AP
	u8 *_p2p_dev_addr = NULL;
#endif /* CONFIG_AP */

	if (cmd == NULL || os_strcmp(cmd, "any") == 0) {
		_bssid = NULL;
#ifdef CONFIG_P2P
	} else if (os_strncmp(cmd, "p2p_dev_addr=", 13) == 0) {
		if (hwaddr_aton(cmd + 13, p2p_dev_addr)) {
			wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PBC: invalid "
				   "P2P Device Address '%s'",
				   cmd + 13);
			return -1;
		}
		_p2p_dev_addr = p2p_dev_addr;
#endif /* CONFIG_P2P */
	} else if (hwaddr_aton(cmd, bssid)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PBC: invalid BSSID '%s'",
			   cmd);
		return -1;
	}

#ifdef CONFIG_AP
	if (wpa_s->ap_iface)
		return wpa_supplicant_ap_wps_pbc(wpa_s, _bssid, _p2p_dev_addr);
#endif /* CONFIG_AP */

	return wpas_wps_start_pbc(wpa_s, _bssid, 0);
}


static int wpa_supplicant_ctrl_iface_wps_pin(struct wpa_supplicant *wpa_s,
					     char *cmd, char *buf,
					     size_t buflen)
{
	u8 bssid[ETH_ALEN], *_bssid = bssid;
	char *pin;
	int ret;

	pin = os_strchr(cmd, ' ');
	if (pin)
		*pin++ = '\0';

	if (os_strcmp(cmd, "any") == 0)
		_bssid = NULL;
	else if (os_strcmp(cmd, "get") == 0) {
		ret = wps_generate_pin();
		goto done;
	} else if (hwaddr_aton(cmd, bssid)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PIN: invalid BSSID '%s'",
			   cmd);
		return -1;
	}

#ifdef CONFIG_AP
	if (wpa_s->ap_iface) {
		int timeout = 0;
		char *pos;

		if (pin) {
			pos = os_strchr(pin, ' ');
			if (pos) {
				*pos++ = '\0';
				timeout = atoi(pos);
			}
		}

		return wpa_supplicant_ap_wps_pin(wpa_s, _bssid, pin,
						 buf, buflen, timeout);
	}
#endif /* CONFIG_AP */

	if (pin) {
		ret = wpas_wps_start_pin(wpa_s, _bssid, pin, 0,
					 DEV_PW_DEFAULT);
		if (ret < 0)
			return -1;
		ret = os_snprintf(buf, buflen, "%s", pin);
		if (os_snprintf_error(buflen, ret))
			return -1;
		return ret;
	}

	ret = wpas_wps_start_pin(wpa_s, _bssid, NULL, 0, DEV_PW_DEFAULT);
	if (ret < 0)
		return -1;

done:
	/* Return the generated PIN */
	ret = os_snprintf(buf, buflen, "%08d", ret);
	if (os_snprintf_error(buflen, ret))
		return -1;
	return ret;
}


static int wpa_supplicant_ctrl_iface_wps_check_pin(
	struct wpa_supplicant *wpa_s, 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 wpa_supplicant_ctrl_iface_wps_nfc(struct wpa_supplicant *wpa_s,
					     char *cmd)
{
	u8 bssid[ETH_ALEN], *_bssid = bssid;

	if (cmd == NULL || cmd[0] == '\0')
		_bssid = NULL;
	else if (hwaddr_aton(cmd, bssid))
		return -1;

	return wpas_wps_start_nfc(wpa_s, NULL, _bssid, NULL, 0, 0, NULL, NULL,
				  0, 0);
}


static int wpa_supplicant_ctrl_iface_wps_nfc_config_token(
	struct wpa_supplicant *wpa_s, char *cmd, char *reply, size_t max_len)
{
	int ndef;
	struct wpabuf *buf;
	int res;
	char *pos;

	pos = os_strchr(cmd, ' ');
	if (pos)
		*pos++ = '\0';
	if (os_strcmp(cmd, "WPS") == 0)
		ndef = 0;
	else if (os_strcmp(cmd, "NDEF") == 0)
		ndef = 1;
	else
		return -1;

	buf = wpas_wps_nfc_config_token(wpa_s, ndef, pos);
	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 wpa_supplicant_ctrl_iface_wps_nfc_token(
	struct wpa_supplicant *wpa_s, 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 = wpas_wps_nfc_token(wpa_s, 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 wpa_supplicant_ctrl_iface_wps_nfc_tag_read(
	struct wpa_supplicant *wpa_s, char *pos)
{
	size_t len;
	struct wpabuf *buf;
	int ret;
	char *freq;
	int forced_freq = 0;

	freq = strstr(pos, " freq=");
	if (freq) {
		*freq = '\0';
		freq += 6;
		forced_freq = atoi(freq);
	}

	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 = wpas_wps_nfc_tag_read(wpa_s, buf, forced_freq);
	wpabuf_free(buf);

	return ret;
}


static int wpas_ctrl_nfc_get_handover_req_wps(struct wpa_supplicant *wpa_s,
					      char *reply, size_t max_len,
					      int ndef)
{
	struct wpabuf *buf;
	int res;

	buf = wpas_wps_nfc_handover_req(wpa_s, 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;
}


#ifdef CONFIG_P2P
static int wpas_ctrl_nfc_get_handover_req_p2p(struct wpa_supplicant *wpa_s,
					      char *reply, size_t max_len,
					      int ndef)
{
	struct wpabuf *buf;
	int res;

	buf = wpas_p2p_nfc_handover_req(wpa_s, ndef);
	if (buf == NULL) {
		wpa_printf(MSG_DEBUG, "P2P: Could not generate NFC handover request");
		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;
}
#endif /* CONFIG_P2P */


static int wpas_ctrl_nfc_get_handover_req(struct wpa_supplicant *wpa_s,
					  char *cmd, char *reply,
					  size_t max_len)
{
	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") == 0 || os_strcmp(pos, "WPS-CR") == 0) {
		if (!ndef)
			return -1;
		return wpas_ctrl_nfc_get_handover_req_wps(
			wpa_s, reply, max_len, ndef);
	}

#ifdef CONFIG_P2P
	if (os_strcmp(pos, "P2P-CR") == 0) {
		return wpas_ctrl_nfc_get_handover_req_p2p(
			wpa_s, reply, max_len, ndef);
	}
#endif /* CONFIG_P2P */

	return -1;
}


static int wpas_ctrl_nfc_get_handover_sel_wps(struct wpa_supplicant *wpa_s,
					      char *reply, size_t max_len,
					      int ndef, int cr, char *uuid)
{
	struct wpabuf *buf;
	int res;

	buf = wpas_wps_nfc_handover_sel(wpa_s, ndef, cr, uuid);
	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;
}


#ifdef CONFIG_P2P
static int wpas_ctrl_nfc_get_handover_sel_p2p(struct wpa_supplicant *wpa_s,
					      char *reply, size_t max_len,
					      int ndef, int tag)
{
	struct wpabuf *buf;
	int res;

	buf = wpas_p2p_nfc_handover_sel(wpa_s, ndef, tag);
	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;
}
#endif /* CONFIG_P2P */


static int wpas_ctrl_nfc_get_handover_sel(struct wpa_supplicant *wpa_s,
					  char *cmd, char *reply,
					  size_t max_len)
{
	char *pos, *pos2;
	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;

	pos2 = os_strchr(pos, ' ');
	if (pos2)
		*pos2++ = '\0';
	if (os_strcmp(pos, "WPS") == 0 || os_strcmp(pos, "WPS-CR") == 0) {
		if (!ndef)
			return -1;
		return wpas_ctrl_nfc_get_handover_sel_wps(
			wpa_s, reply, max_len, ndef,
			os_strcmp(pos, "WPS-CR") == 0, pos2);
	}

#ifdef CONFIG_P2P
	if (os_strcmp(pos, "P2P-CR") == 0) {
		return wpas_ctrl_nfc_get_handover_sel_p2p(
			wpa_s, reply, max_len, ndef, 0);
	}

	if (os_strcmp(pos, "P2P-CR-TAG") == 0) {
		return wpas_ctrl_nfc_get_handover_sel_p2p(
			wpa_s, reply, max_len, ndef, 1);
	}
#endif /* CONFIG_P2P */

	return -1;
}


static int wpas_ctrl_nfc_report_handover(struct wpa_supplicant *wpa_s,
					 char *cmd)
{
	size_t len;
	struct wpabuf *req, *sel;
	int ret;
	char *pos, *role, *type, *pos2;
#ifdef CONFIG_P2P
	char *freq;
	int forced_freq = 0;

	freq = strstr(cmd, " freq=");
	if (freq) {
		*freq = '\0';
		freq += 6;
		forced_freq = atoi(freq);
	}
#endif /* CONFIG_P2P */

	role = cmd;
	pos = os_strchr(role, ' ');
	if (pos == NULL) {
		wpa_printf(MSG_DEBUG, "NFC: Missing type in handover report");
		return -1;
	}
	*pos++ = '\0';

	type = pos;
	pos = os_strchr(type, ' ');
	if (pos == NULL) {
		wpa_printf(MSG_DEBUG, "NFC: Missing request message in handover report");
		return -1;
	}
	*pos++ = '\0';

	pos2 = os_strchr(pos, ' ');
	if (pos2 == NULL) {
		wpa_printf(MSG_DEBUG, "NFC: Missing select message in handover report");
		return -1;
	}
	*pos2++ = '\0';

	len = os_strlen(pos);
	if (len & 0x01) {
		wpa_printf(MSG_DEBUG, "NFC: Invalid request message length in handover report");
		return -1;
	}
	len /= 2;

	req = wpabuf_alloc(len);
	if (req == NULL) {
		wpa_printf(MSG_DEBUG, "NFC: Failed to allocate memory for request message");
		return -1;
	}
	if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) {
		wpa_printf(MSG_DEBUG, "NFC: Invalid request message hexdump in handover report");
		wpabuf_free(req);
		return -1;
	}

	len = os_strlen(pos2);
	if (len & 0x01) {
		wpa_printf(MSG_DEBUG, "NFC: Invalid select message length in handover report");
		wpabuf_free(req);
		return -1;
	}
	len /= 2;

	sel = wpabuf_alloc(len);
	if (sel == NULL) {
		wpa_printf(MSG_DEBUG, "NFC: Failed to allocate memory for select message");
		wpabuf_free(req);
		return -1;
	}
	if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) {
		wpa_printf(MSG_DEBUG, "NFC: Invalid select message hexdump in handover report");
		wpabuf_free(req);
		wpabuf_free(sel);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "NFC: Connection handover reported - role=%s type=%s req_len=%d sel_len=%d",
		   role, type, (int) wpabuf_len(req), (int) wpabuf_len(sel));

	if (os_strcmp(role, "INIT") == 0 && os_strcmp(type, "WPS") == 0) {
		ret = wpas_wps_nfc_report_handover(wpa_s, req, sel);
#ifdef CONFIG_AP
	} else if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0)
	{
		ret = wpas_ap_wps_nfc_report_handover(wpa_s, req, sel);
		if (ret < 0)
			ret = wpas_er_wps_nfc_report_handover(wpa_s, req, sel);
#endif /* CONFIG_AP */
#ifdef CONFIG_P2P
	} else if (os_strcmp(role, "INIT") == 0 && os_strcmp(type, "P2P") == 0)
	{
		ret = wpas_p2p_nfc_report_handover(wpa_s, 1, req, sel, 0);
	} else if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "P2P") == 0)
	{
		ret = wpas_p2p_nfc_report_handover(wpa_s, 0, req, sel,
						   forced_freq);
#endif /* CONFIG_P2P */
	} else {
		wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover "
			   "reported: role=%s type=%s", role, type);
		ret = -1;
	}
	wpabuf_free(req);
	wpabuf_free(sel);

	if (ret)
		wpa_printf(MSG_DEBUG, "NFC: Failed to process reported handover messages");

	return ret;
}

#endif /* CONFIG_WPS_NFC */


static int wpa_supplicant_ctrl_iface_wps_reg(struct wpa_supplicant *wpa_s,
					     char *cmd)
{
	u8 bssid[ETH_ALEN];
	char *pin;
	char *new_ssid;
	char *new_auth;
	char *new_encr;
	char *new_key;
	struct wps_new_ap_settings ap;

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

	if (hwaddr_aton(cmd, bssid)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_REG: invalid BSSID '%s'",
			   cmd);
		return -1;
	}

	new_ssid = os_strchr(pin, ' ');
	if (new_ssid == NULL)
		return wpas_wps_start_reg(wpa_s, bssid, pin, NULL);
	*new_ssid++ = '\0';

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

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

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

	os_memset(&ap, 0, sizeof(ap));
	ap.ssid_hex = new_ssid;
	ap.auth = new_auth;
	ap.encr = new_encr;
	ap.key_hex = new_key;
	return wpas_wps_start_reg(wpa_s, bssid, pin, &ap);
}


#ifdef CONFIG_AP
static int wpa_supplicant_ctrl_iface_wps_ap_pin(struct wpa_supplicant *wpa_s,
						char *cmd, char *buf,
						size_t buflen)
{
	int timeout = 300;
	char *pos;
	const char *pin_txt;

	if (!wpa_s->ap_iface)
		return -1;

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

	if (os_strcmp(cmd, "disable") == 0) {
		wpas_wps_ap_pin_disable(wpa_s);
		return os_snprintf(buf, buflen, "OK\n");
	}

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

	if (os_strcmp(cmd, "get") == 0) {
		pin_txt = wpas_wps_ap_pin_get(wpa_s);
		if (pin_txt == NULL)
			return -1;
		return os_snprintf(buf, buflen, "%s", pin_txt);
	}

	if (os_strcmp(cmd, "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 (wpas_wps_ap_pin_set(wpa_s, pin, timeout) < 0)
			return -1;
		return os_snprintf(buf, buflen, "%s", pin);
	}

	return -1;
}
#endif /* CONFIG_AP */


#ifdef CONFIG_WPS_ER
static int wpa_supplicant_ctrl_iface_wps_er_pin(struct wpa_supplicant *wpa_s,
						char *cmd)
{
	char *uuid = cmd, *pin, *pos;
	u8 addr_buf[ETH_ALEN], *addr = NULL;
	pin = os_strchr(uuid, ' ');
	if (pin == NULL)
		return -1;
	*pin++ = '\0';
	pos = os_strchr(pin, ' ');
	if (pos) {
		*pos++ = '\0';
		if (hwaddr_aton(pos, addr_buf) == 0)
			addr = addr_buf;
	}
	return wpas_wps_er_add_pin(wpa_s, addr, uuid, pin);
}


static int wpa_supplicant_ctrl_iface_wps_er_learn(struct wpa_supplicant *wpa_s,
						  char *cmd)
{
	char *uuid = cmd, *pin;
	pin = os_strchr(uuid, ' ');
	if (pin == NULL)
		return -1;
	*pin++ = '\0';
	return wpas_wps_er_learn(wpa_s, uuid, pin);
}


static int wpa_supplicant_ctrl_iface_wps_er_set_config(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	char *uuid = cmd, *id;
	id = os_strchr(uuid, ' ');
	if (id == NULL)
		return -1;
	*id++ = '\0';
	return wpas_wps_er_set_config(wpa_s, uuid, atoi(id));
}


static int wpa_supplicant_ctrl_iface_wps_er_config(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	char *pin;
	char *new_ssid;
	char *new_auth;
	char *new_encr;
	char *new_key;
	struct wps_new_ap_settings ap;

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

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

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

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

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

	os_memset(&ap, 0, sizeof(ap));
	ap.ssid_hex = new_ssid;
	ap.auth = new_auth;
	ap.encr = new_encr;
	ap.key_hex = new_key;
	return wpas_wps_er_config(wpa_s, cmd, pin, &ap);
}


#ifdef CONFIG_WPS_NFC
static int wpa_supplicant_ctrl_iface_wps_er_nfc_config_token(
	struct wpa_supplicant *wpa_s, char *cmd, char *reply, size_t max_len)
{
	int ndef;
	struct wpabuf *buf;
	int res;
	char *uuid;

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

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

	buf = wpas_wps_er_nfc_config_token(wpa_s, ndef, uuid);
	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;
}
#endif /* CONFIG_WPS_NFC */
#endif /* CONFIG_WPS_ER */

#endif /* CONFIG_WPS */


#ifdef CONFIG_IBSS_RSN
static int wpa_supplicant_ctrl_iface_ibss_rsn(
	struct wpa_supplicant *wpa_s, char *addr)
{
	u8 peer[ETH_ALEN];

	if (hwaddr_aton(addr, peer)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE IBSS_RSN: invalid "
			   "address '%s'", addr);
		return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE IBSS_RSN " MACSTR,
		   MAC2STR(peer));

	return ibss_rsn_start(wpa_s->ibss_rsn, peer);
}
#endif /* CONFIG_IBSS_RSN */


static int wpa_supplicant_ctrl_iface_ctrl_rsp(struct wpa_supplicant *wpa_s,
					      char *rsp)
{
#ifdef IEEE8021X_EAPOL
	char *pos, *id_pos;
	int id;
	struct wpa_ssid *ssid;

	pos = os_strchr(rsp, '-');
	if (pos == NULL)
		return -1;
	*pos++ = '\0';
	id_pos = pos;
	pos = os_strchr(pos, ':');
	if (pos == NULL)
		return -1;
	*pos++ = '\0';
	id = atoi(id_pos);
	wpa_printf(MSG_DEBUG, "CTRL_IFACE: field=%s id=%d", rsp, id);
	wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value",
			      (u8 *) pos, os_strlen(pos));

	ssid = wpa_config_get_network(wpa_s->conf, id);
	if (ssid == NULL) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
			   "to update", id);
		return -1;
	}

	return wpa_supplicant_ctrl_iface_ctrl_rsp_handle(wpa_s, ssid, rsp,
							 pos);
#else /* IEEE8021X_EAPOL */
	wpa_printf(MSG_DEBUG, "CTRL_IFACE: 802.1X not included");
	return -1;
#endif /* IEEE8021X_EAPOL */
}


static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s,
					    const char *params,
					    char *buf, size_t buflen)
{
	char *pos, *end, tmp[30];
	int res, verbose, wps, ret;
#ifdef CONFIG_HS20
	const u8 *hs20;
#endif /* CONFIG_HS20 */
	const u8 *sess_id;
	size_t sess_id_len;

	if (os_strcmp(params, "-DRIVER") == 0)
		return wpa_drv_status(wpa_s, buf, buflen);
	verbose = os_strcmp(params, "-VERBOSE") == 0;
	wps = os_strcmp(params, "-WPS") == 0;
	pos = buf;
	end = buf + buflen;
	if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
		struct wpa_ssid *ssid = wpa_s->current_ssid;
		ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n",
				  MAC2STR(wpa_s->bssid));
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
		ret = os_snprintf(pos, end - pos, "freq=%u\n",
				  wpa_s->assoc_freq);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
		if (ssid) {
			u8 *_ssid = ssid->ssid;
			size_t ssid_len = ssid->ssid_len;
			u8 ssid_buf[SSID_MAX_LEN];
			if (ssid_len == 0) {
				int _res = wpa_drv_get_ssid(wpa_s, ssid_buf);
				if (_res < 0)
					ssid_len = 0;
				else
					ssid_len = _res;
				_ssid = ssid_buf;
			}
			ret = os_snprintf(pos, end - pos, "ssid=%s\nid=%d\n",
					  wpa_ssid_txt(_ssid, ssid_len),
					  ssid->id);
			if (os_snprintf_error(end - pos, ret))
				return pos - buf;
			pos += ret;

			if (wps && ssid->passphrase &&
			    wpa_key_mgmt_wpa_psk(ssid->key_mgmt) &&
			    (ssid->mode == WPAS_MODE_AP ||
			     ssid->mode == WPAS_MODE_P2P_GO)) {
				ret = os_snprintf(pos, end - pos,
						  "passphrase=%s\n",
						  ssid->passphrase);
				if (os_snprintf_error(end - pos, ret))
					return pos - buf;
				pos += ret;
			}
			if (ssid->id_str) {
				ret = os_snprintf(pos, end - pos,
						  "id_str=%s\n",
						  ssid->id_str);
				if (os_snprintf_error(end - pos, ret))
					return pos - buf;
				pos += ret;
			}

			switch (ssid->mode) {
			case WPAS_MODE_INFRA:
				ret = os_snprintf(pos, end - pos,
						  "mode=station\n");
				break;
			case WPAS_MODE_IBSS:
				ret = os_snprintf(pos, end - pos,
						  "mode=IBSS\n");
				break;
			case WPAS_MODE_AP:
				ret = os_snprintf(pos, end - pos,
						  "mode=AP\n");
				break;
			case WPAS_MODE_P2P_GO:
				ret = os_snprintf(pos, end - pos,
						  "mode=P2P GO\n");
				break;
			case WPAS_MODE_P2P_GROUP_FORMATION:
				ret = os_snprintf(pos, end - pos,
						  "mode=P2P GO - group "
						  "formation\n");
				break;
			default:
				ret = 0;
				break;
			}
			if (os_snprintf_error(end - pos, ret))
				return pos - buf;
			pos += ret;
		}

#ifdef CONFIG_AP
		if (wpa_s->ap_iface) {
			pos += ap_ctrl_iface_wpa_get_status(wpa_s, pos,
							    end - pos,
							    verbose);
		} else
#endif /* CONFIG_AP */
		pos += wpa_sm_get_status(wpa_s->wpa, pos, end - pos, verbose);
	}
#ifdef CONFIG_SAE
	if (wpa_s->wpa_state >= WPA_ASSOCIATED &&
#ifdef CONFIG_AP
	    !wpa_s->ap_iface &&
#endif /* CONFIG_AP */
	    wpa_s->sme.sae.state == SAE_ACCEPTED) {
		ret = os_snprintf(pos, end - pos, "sae_group=%d\n",
				  wpa_s->sme.sae.group);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_SAE */
	ret = os_snprintf(pos, end - pos, "wpa_state=%s\n",
			  wpa_supplicant_state_txt(wpa_s->wpa_state));
	if (os_snprintf_error(end - pos, ret))
		return pos - buf;
	pos += ret;

	if (wpa_s->l2 &&
	    l2_packet_get_ip_addr(wpa_s->l2, tmp, sizeof(tmp)) >= 0) {
		ret = os_snprintf(pos, end - pos, "ip_address=%s\n", tmp);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

#ifdef CONFIG_P2P
	if (wpa_s->global->p2p) {
		ret = os_snprintf(pos, end - pos, "p2p_device_address=" MACSTR
				  "\n", MAC2STR(wpa_s->global->p2p_dev_addr));
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_P2P */

	ret = os_snprintf(pos, end - pos, "address=" MACSTR "\n",
			  MAC2STR(wpa_s->own_addr));
	if (os_snprintf_error(end - pos, ret))
		return pos - buf;
	pos += ret;

#ifdef CONFIG_HS20
	if (wpa_s->current_bss &&
	    (hs20 = wpa_bss_get_vendor_ie(wpa_s->current_bss,
					  HS20_IE_VENDOR_TYPE)) &&
	    wpa_s->wpa_proto == WPA_PROTO_RSN &&
	    wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
		int release = 1;
		if (hs20[1] >= 5) {
			u8 rel_num = (hs20[6] & 0xf0) >> 4;
			release = rel_num + 1;
		}
		ret = os_snprintf(pos, end - pos, "hs20=%d\n", release);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}

	if (wpa_s->current_ssid) {
		struct wpa_cred *cred;
		char *type;

		for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
			size_t i;

			if (wpa_s->current_ssid->parent_cred != cred)
				continue;

			if (cred->provisioning_sp) {
				ret = os_snprintf(pos, end - pos,
						  "provisioning_sp=%s\n",
						  cred->provisioning_sp);
				if (os_snprintf_error(end - pos, ret))
					return pos - buf;
				pos += ret;
			}

			if (!cred->domain)
				goto no_domain;

			i = 0;
			if (wpa_s->current_bss && wpa_s->current_bss->anqp) {
				struct wpabuf *names =
					wpa_s->current_bss->anqp->domain_name;
				for (i = 0; names && i < cred->num_domain; i++)
				{
					if (domain_name_list_contains(
						    names, cred->domain[i], 1))
						break;
				}
				if (i == cred->num_domain)
					i = 0; /* show first entry by default */
			}
			ret = os_snprintf(pos, end - pos, "home_sp=%s\n",
					  cred->domain[i]);
			if (os_snprintf_error(end - pos, ret))
				return pos - buf;
			pos += ret;

		no_domain:
			if (wpa_s->current_bss == NULL ||
			    wpa_s->current_bss->anqp == NULL)
				res = -1;
			else
				res = interworking_home_sp_cred(
					wpa_s, cred,
					wpa_s->current_bss->anqp->domain_name);
			if (res > 0)
				type = "home";
			else if (res == 0)
				type = "roaming";
			else
				type = "unknown";

			ret = os_snprintf(pos, end - pos, "sp_type=%s\n", type);
			if (os_snprintf_error(end - pos, ret))
				return pos - buf;
			pos += ret;

			break;
		}
	}
#endif /* CONFIG_HS20 */

	if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
	    wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
		res = eapol_sm_get_status(wpa_s->eapol, pos, end - pos,
					  verbose);
		if (res >= 0)
			pos += res;
	}

	sess_id = eapol_sm_get_session_id(wpa_s->eapol, &sess_id_len);
	if (sess_id) {
		char *start = pos;

		ret = os_snprintf(pos, end - pos, "eap_session_id=");
		if (os_snprintf_error(end - pos, ret))
			return start - buf;
		pos += ret;
		ret = wpa_snprintf_hex(pos, end - pos, sess_id, sess_id_len);
		if (ret <= 0)
			return start - buf;
		pos += ret;
		ret = os_snprintf(pos, end - pos, "\n");
		if (os_snprintf_error(end - pos, ret))
			return start - buf;
		pos += ret;
	}

	res = rsn_preauth_get_status(wpa_s->wpa, pos, end - pos, verbose);
	if (res >= 0)
		pos += res;

#ifdef CONFIG_WPS
	{
		char uuid_str[100];
		uuid_bin2str(wpa_s->wps->uuid, uuid_str, sizeof(uuid_str));
		ret = os_snprintf(pos, end - pos, "uuid=%s\n", uuid_str);
		if (os_snprintf_error(end - pos, ret))
			return pos - buf;
		pos += ret;
	}
#endif /* CONFIG_WPS */

#ifdef ANDROID
	/*
	 * Allow using the STATUS command with default behavior, say for debug,
	 * i.e., don't generate a "fake" CONNECTION and SUPPLICANT_STATE_CHANGE
	 * events with STATUS-NO_EVENTS.
	 */
	if (os_strcmp(params, "-NO_EVENTS")) {
		wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_STATE_CHANGE
			     "id=%d state=%d BSSID=" MACSTR " SSID=%s",
			     wpa_s->current_ssid ? wpa_s->current_ssid->id : -1,
			     wpa_s->wpa_state,
			     MAC2STR(wpa_s->bssid),
			     wpa_s->current_ssid && wpa_s->current_ssid->ssid ?
			     wpa_ssid_txt(wpa_s->current_ssid->ssid,
					  wpa_s->current_ssid->ssid_len) : "");
		if (wpa_s->wpa_state == WPA_COMPLETED) {
			struct wpa_ssid *ssid = wpa_s->current_ssid;
			wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED
				     "- connection to " MACSTR
				     " completed %s [id=%d id_str=%s]",
				     MAC2STR(wpa_s->bssid), "(auth)",
				     ssid ? ssid->id : -1,
				     ssid && ssid->id_str ? ssid->id_str : "");
		}
	}
#endif /* ANDROID */

	return pos - buf;
}


static int wpa_supplicant_ctrl_iface_bssid(struct wpa_supplicant *wpa_s,
					   char *cmd)
{
	char *pos;
	int id;
	struct wpa_ssid *ssid;
	u8 bssid[ETH_ALEN];

	/* cmd: "<network id> <BSSID>" */
	pos = os_strchr(cmd, ' ');
	if (pos == NULL)
		return -1;
	*pos++ = '\0';
	id = atoi(cmd);
	wpa_printf(MSG_DEBUG, "CTRL_IFACE: id=%d bssid='%s'", id, pos);
	if (hwaddr_aton(pos, bssid)) {
		wpa_printf(MSG_DEBUG ,"CTRL_IFACE: invalid BSSID '%s'", pos);
		return -1;
	}

	ssid = wpa_config_get_network(wpa_s->conf, id);
	if (ssid == NULL) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d "
			   "to update", id);
		return -1;
	}

	os_memcpy(ssid->bssid, bssid, ETH_ALEN);
	ssid->bssid_set = !is_zero_ether_addr(bssid);

	return 0;
}


static int wpa_supplicant_ctrl_iface_blacklist(struct wpa_supplicant *wpa_s,
					       char *cmd, char *buf,
					       size_t buflen)
{
	u8 bssid[ETH_ALEN];
	struct wpa_blacklist *e;
	char *pos, *end;
	int ret;

	/* cmd: "BLACKLIST [<BSSID>]" */
	if (*cmd == '\0') {
		pos = buf;
		end = buf + buflen;
		e = wpa_s->blacklist;
		while (e) {
			ret = os_snprintf(pos, end - pos, MACSTR "\n",
					  MAC2STR(e->bssid));
			if (os_snprintf_error(end - pos, ret))
				return pos - buf;
			pos += ret;
			e = e->next;
		}
		return pos - buf;
	}

	cmd++;
	if (os_strncmp(cmd, "clear", 5) == 0) {
		wpa_blacklist_clear(wpa_s);
		os_memcpy(buf, "OK\n", 3);
		return 3;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE: BLACKLIST bssid='%s'", cmd);
	if (hwaddr_aton(cmd, bssid)) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: invalid BSSID '%s'", cmd);
		return -1;
	}

	/*
	 * Add the BSSID twice, so its count will be 2, causing it to be
	 * skipped when processing scan results.
	 */
	ret = wpa_blacklist_add(wpa_s, bssid);
	if (ret < 0)
		return -1;
	ret = wpa_blacklist_add(wpa_s, bssid);
	if (ret < 0)
		return -1;
	os_memcpy(buf, "OK\n", 3);
	return 3;
}


static const char * debug_level_str(int level)
{
	switch (level) {
	case MSG_EXCESSIVE:
		return "EXCESSIVE";
	case MSG_MSGDUMP:
		return "MSGDUMP";
	case MSG_DEBUG:
		return "DEBUG";
	case MSG_INFO:
		return "INFO";
	case MSG_WARNING:
		return "WARNING";
	case MSG_ERROR:
		return "ERROR";
	default:
		return "?";
	}
}


static int str_to_debug_level(const char *s)
{
	if (os_strcasecmp(s, "EXCESSIVE") == 0)
		return MSG_EXCESSIVE;
	if (os_strcasecmp(s, "MSGDUMP") == 0)
		return MSG_MSGDUMP;
	if (os_strcasecmp(s, "DEBUG") == 0)
		return MSG_DEBUG;
	if (os_strcasecmp(s, "INFO") == 0)
		return MSG_INFO;
	if (os_strcasecmp(s, "WARNING") == 0)
		return MSG_WARNING;
	if (os_strcasecmp(s, "ERROR") == 0)
		return MSG_ERROR;
	return -1;
}


static int wpa_supplicant_ctrl_iface_log_level(struct wpa_supplicant *wpa_s,
					       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 (cmd && 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;
}


static int wpa_supplicant_ctrl_iface_list_networks(
	struct wpa_supplicant *wpa_s, char *cmd, char *buf, size_t buflen)
{
	char *pos, *end, *prev;
	struct wpa_ssid *ssid;
	int ret;

	pos = buf;
	end = buf + buflen;
	ret = os_snprintf(pos, end - pos,
			  "network id / ssid / bssid / flags\n");
	if (os_snprintf_error(end - pos, ret))
		return pos - buf;
	pos += ret;

	ssid = wpa_s->conf->ssid;

	/* skip over ssids until we find next one */
	if (cmd != NULL && os_strncmp(cmd, "LAST_ID=", 8) == 0) {
		int last_id = atoi(cmd + 8);
		if (last_id != -1) {
			while (ssid != NULL && ssid->id <= last_id) {
				ssid = ssid->next;
			}
		}
	}

	while (ssid) {
		prev = pos;
		ret = os_snprintf(pos, end - pos, "%d\t%s",
				  ssid->id,
				  wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
		if (os_snprintf_error(end - pos, ret))
			return prev - buf;
		pos += ret;
		if (ssid->bssid_set) {
			ret = os_snprintf(pos, end - pos, "\t" MACSTR,
					  MAC2STR(ssid->bssid));
		} else {
			ret = os_snprintf(pos, end - pos, "\tany");
		}
		if (os_snprintf_error(end - pos, ret))
			return prev - buf;
		pos += ret;
		ret = os_snprintf(pos, end - pos, "\t%s%s%s%s",
				  ssid == wpa_s->current_ssid ?
				  "[CURRENT]" : "",
				  ssid->disabled ? "[DISABLED]" : "",
				  ssid->disabled_until.sec ?
				  "[TEMP-DISABLED]" : "",
				  ssid->disabled == 2 ? "[P2P-PERSISTENT]" :
				  "");
		if (os_snprintf_error(end - pos, ret))
			return prev - buf;
		pos += ret;
		ret = os_snprintf(pos, end - pos, "\n");
		if (os_snprintf_error(end - pos, ret))
			return prev - buf;
		pos += ret;

		ssid = ssid->next;
	}

	return pos - buf;
}


static char * wpa_supplicant_cipher_txt(char *pos, char *end, int cipher)
{
	int ret;
	ret = os_snprintf(pos, end - pos, "-");
	if (os_snprintf_error(end - pos, ret))
		return pos;
	pos += ret;
	ret = wpa_write_ciphers(pos, end, cipher, "+");
	if (ret < 0)
		return pos;
	pos += ret;
	return pos;
}


static char * wpa_supplicant_ie_txt(char *pos, char *end, const char *proto,
				    const u8 *ie, size_t ie_len)
{
	struct wpa_ie_data data;
	char *start;
	int ret;

	ret = os_snprintf(pos, end - pos, "[%s-", proto);
	if (os_snprintf_error(end - pos, ret))
		return pos;
	pos += ret;

	if (wpa_parse_wpa_ie(ie, ie_len, &data) < 0) {
		ret = os_snprintf(pos, end - pos, "?]");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
		return pos;
	}

	start = pos;
	if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
		ret = os_snprintf(pos, end - pos, "%sEAP",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
	if (data.key_mgmt & WPA_KEY_MGMT_PSK) {
		ret = os_snprintf(pos, end - pos, "%sPSK",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
	if (data.key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
		ret = os_snprintf(pos, end - pos, "%sNone",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
	if (data.key_mgmt & WPA_KEY_MGMT_SAE) {
		ret = os_snprintf(pos, end - pos, "%sSAE",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
#ifdef CONFIG_IEEE80211R
	if (data.key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
		ret = os_snprintf(pos, end - pos, "%sFT/EAP",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
	if (data.key_mgmt & WPA_KEY_MGMT_FT_PSK) {
		ret = os_snprintf(pos, end - pos, "%sFT/PSK",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
	if (data.key_mgmt & WPA_KEY_MGMT_FT_SAE) {
		ret = os_snprintf(pos, end - pos, "%sFT/SAE",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211W
	if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
		ret = os_snprintf(pos, end - pos, "%sEAP-SHA256",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
	if (data.key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
		ret = os_snprintf(pos, end - pos, "%sPSK-SHA256",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
#endif /* CONFIG_IEEE80211W */

#ifdef CONFIG_SUITEB
	if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
		ret = os_snprintf(pos, end - pos, "%sEAP-SUITE-B",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
#endif /* CONFIG_SUITEB */

#ifdef CONFIG_SUITEB192
	if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
		ret = os_snprintf(pos, end - pos, "%sEAP-SUITE-B-192",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}
#endif /* CONFIG_SUITEB192 */

	if (data.key_mgmt & WPA_KEY_MGMT_OSEN) {
		ret = os_snprintf(pos, end - pos, "%sOSEN",
				  pos == start ? "" : "+");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}

	pos = wpa_supplicant_cipher_txt(pos, end, data.pairwise_cipher);

	if (data.capabilities & WPA_CAPABILITY_PREAUTH) {
		ret = os_snprintf(pos, end - pos, "-preauth");
		if (os_snprintf_error(end - pos, ret))
			return pos;
		pos += ret;
	}

	ret = os_snprintf(pos, end - pos, "]");
	if (os_snprintf_error(end - pos, ret))
		return pos;
	pos += ret;

	return pos;
}


#ifdef CONFIG_WPS
static char * wpa_supplicant_wps_ie_txt_buf(struct wpa_supplicant *wpa_s,
					    char *pos, char *end,
					    struct wpabuf *wps_ie)
{
	int ret;
	const char *txt;

	if (wps_ie == NULL)
		return pos;
	if (wps_is_selected_pbc_registrar(wps_ie))
		txt = "[WPS-PBC]";
	else if (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 0))
		txt = "[WPS-AUTH]";
	else if (wps_is_selected_pin_registrar(wps_ie))
		txt = "[WPS-PIN]";
	else
		txt = "[WPS]";

	ret = os_snprintf(pos, end - pos, "%s", txt);
	if (!os_snprintf_error(end - pos, ret))
		pos += ret;
	wpabuf_free(wps_ie);
	return pos;
}
#endif /* CONFIG_WPS */


static char * wpa_supplicant_wps_ie_txt(struct wpa_supplicant *wpa_s,
					char *pos, char *end,
					const struct wpa_bss *bss)
{
#ifdef CONFIG_WPS
	struct wpabuf *wps_ie;
	wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
	return wpa_supplicant_wps_ie_txt_buf(wpa_s, pos, end, wps_ie);
#else /* CONFIG_WPS */
	return pos;
#endif /* CONFIG_WPS */
}


/* Format one result on one text line into a buffer. */
static int wpa_supplicant_ctrl_iface_scan_result(
	struct wpa_supplicant *wpa_s,
	const struct wpa_bss *bss, char *buf, size_t buflen)
{
	char *pos, *end;
	int ret;
	const u8 *ie, *ie2, *osen_ie, *p2p, *mesh;

	mesh = wpa_bss_get_ie(bss, WLAN_EID_MESH_ID);
	p2p = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
	if (!p2p)
		p2p = wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE);
	if (p2p && bss->ssid_len == P2P_WILDCARD_SSID_LEN &&
	    os_memcmp(bss->ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) ==
	    0)
		return 0; /* Do not show P2P listen discovery results here */

	pos = buf;
	end = buf + buflen;

	ret = os_snprintf(pos, end - pos, MACSTR "\t%d\t%d\t",
			  MAC2STR(bss->bssid), bss->freq, bss->level);
	if (os_snprintf_error(end - pos, ret))
		return -1;
	pos += ret;
	ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
	if (ie)
		pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]);
	ie2 = wpa_bss_get_ie(bss, WLAN_EID_RSN);
	if (ie2) {
		pos = wpa_supplicant_ie_txt(pos, end, mesh ? "RSN" : "WPA2",
					    ie2, 2 + ie2[1]);
	}
	osen_ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
	if (osen_ie)
		pos = wpa_supplicant_ie_txt(pos, end, "OSEN",
					    osen_ie, 2 + osen_ie[1]);
	pos = wpa_supplicant_wps_ie_txt(wpa_s, pos, end, bss);
	if (!ie && !ie2 && !osen_ie && (bss->caps & IEEE80211_CAP_PRIVACY)) {
		ret = os_snprintf(pos, end - pos, "[WEP]");
		if (os_snprintf_error(end - pos, ret))
			return -1;
		pos += ret;
	}
	if (mesh) {
		ret = os_snprintf(pos, end - pos, "[MESH]");
		if (os_snprintf_error(end - pos, ret))
			return -1;
		pos += ret;
	}
	if (bss_is_dmg(bss)) {
		const char *s;
		ret = os_snprintf(pos, end - pos, "[DMG]");
		if (os_snprintf_error(end - pos, ret))
			return -1;
		pos += ret;
		switch (bss->caps & IEEE80211_CAP_DMG_MASK) {
		case IEEE80211_CAP_DMG_IBSS:
			s = "[IBSS]";
			break;
		case IEEE80211_CAP_DMG_AP:
			s = "[ESS]";
			break;
		case IEEE80211_CAP_DMG_PBSS:
			s = "[PBSS]";
			break;
		default:
			s = "";
			break;
		}
		ret = os_snprintf(pos, end - pos, "%s", s);
		if (os_snprintf_error(end - pos, ret))
			return -1;
		pos += ret;
	} else {
		if (bss->caps & IEEE80211_CAP_IBSS) {
			ret = os_snprintf(pos, end - pos, "[IBSS]");
			if (os_snprintf_error(end - pos, ret))
				return -1;
			pos += ret;
		}
		if (bss->caps & IEEE80211_CAP_ESS) {
			ret = os_snprintf(pos, end - pos, "[ESS]");
			if (os_snprintf_error(end - pos, ret))
				return -1;
			pos += ret;
		}
	}
	if (p2p) {
		ret = os_snprintf(pos, end - pos, "[P2P]");
		if (os_snprintf_error(end - pos, ret))
			return -1;
		pos += ret;
	}
#ifdef CONFIG_HS20
	if (wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE) && ie2) {
		ret = os_snprintf(pos, end - pos, "[HS20]");
		if (os_snprintf_error(end - pos, ret))
			return -1;
		pos += ret;
	}
#endif /* CONFIG_HS20 */

	ret = os_snprintf(pos, end - pos, "\t%s",
			  wpa_ssid_txt(bss->ssid, bss->ssid_len));
	if (os_snprintf_error(end - pos, ret))
		return -1;
	pos += ret;

	ret = os_snprintf(pos, end - pos, "\n");
	if (os_snprintf_error(end - pos, ret))
		return -1;
	pos += ret;

	return pos - buf;
}


static int wpa_supplicant_ctrl_iface_scan_results(
	struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
{
	char *pos, *end;
	struct wpa_bss *bss;
	int ret;

	pos = buf;
	end = buf + buflen;
	ret = os_snprintf(pos, end - pos, "bssid / frequency / signal level / "
			  "flags / ssid\n");
	if (os_snprintf_error(end - pos, ret))
		return pos - buf;
	pos += ret;

	dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
		ret = wpa_supplicant_ctrl_iface_scan_result(wpa_s, bss, pos,
							    end - pos);
		if (ret < 0 || ret >= end - pos)
			return pos - buf;
		pos += ret;
	}

	return pos - buf;
}


#ifdef CONFIG_MESH

static int wpa_supplicant_ctrl_iface_mesh_interface_add(
	struct wpa_supplicant *wpa_s, char *cmd, char *reply, size_t max_len)
{
	char *pos, ifname[IFNAMSIZ + 1];

	ifname[0] = '\0';

	pos = os_strstr(cmd, "ifname=");
	if (pos) {
		pos += 7;
		os_strlcpy(ifname, pos, sizeof(ifname));
	}

	if (wpas_mesh_add_interface(wpa_s, ifname, sizeof(ifname)) < 0)
		return -1;

	os_strlcpy(reply, ifname, max_len);
	return os_strlen(ifname);
}


static int wpa_supplicant_ctrl_iface_mesh_group_add(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	int id;
	struct wpa_ssid *ssid;

	id = atoi(cmd);
	wpa_printf(MSG_DEBUG, "CTRL_IFACE: MESH_GROUP_ADD id=%d", id);

	ssid = wpa_config_get_network(wpa_s->conf, id);
	if (ssid == NULL) {
		wpa_printf(MSG_DEBUG,
			   "CTRL_IFACE: Could not find network id=%d", id);
		return -1;
	}
	if (ssid->mode != WPAS_MODE_MESH) {
		wpa_printf(MSG_DEBUG,
			   "CTRL_IFACE: Cannot use MESH_GROUP_ADD on a non mesh network");
		return -1;
	}
	if (ssid->key_mgmt != WPA_KEY_MGMT_NONE &&
	    ssid->key_mgmt != WPA_KEY_MGMT_SAE) {
		wpa_printf(MSG_ERROR,
			   "CTRL_IFACE: key_mgmt for mesh network should be open or SAE");
		return -1;
	}

	/*
	 * TODO: If necessary write our own group_add function,
	 * for now we can reuse select_network
	 */
	wpa_supplicant_select_network(wpa_s, ssid);

	return 0;
}


static int wpa_supplicant_ctrl_iface_mesh_group_remove(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	struct wpa_supplicant *orig;
	struct wpa_global *global;
	int found = 0;

	wpa_printf(MSG_DEBUG, "CTRL_IFACE: MESH_GROUP_REMOVE ifname=%s", cmd);

	global = wpa_s->global;
	orig = wpa_s;

	for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
		if (os_strcmp(wpa_s->ifname, cmd) == 0) {
			found = 1;
			break;
		}
	}
	if (!found) {
		wpa_printf(MSG_ERROR,
			   "CTRL_IFACE: MESH_GROUP_REMOVE ifname=%s not found",
			   cmd);
		return -1;
	}
	if (wpa_s->mesh_if_created && wpa_s == orig) {
		wpa_printf(MSG_ERROR,
			   "CTRL_IFACE: MESH_GROUP_REMOVE can't remove itself");
		return -1;
	}

	wpa_s->reassociate = 0;
	wpa_s->disconnected = 1;
	wpa_supplicant_cancel_sched_scan(wpa_s);
	wpa_supplicant_cancel_scan(wpa_s);

	/*
	 * TODO: If necessary write our own group_remove function,
	 * for now we can reuse deauthenticate
	 */
	wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);

	if (wpa_s->mesh_if_created)
		wpa_supplicant_remove_iface(global, wpa_s, 0);

	return 0;
}

#endif /* CONFIG_MESH */


static int wpa_supplicant_ctrl_iface_select_network(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	int id;
	struct wpa_ssid *ssid;
	char *pos;

	/* cmd: "<network id>" or "any" */
	if (os_strncmp(cmd, "any", 3) == 0) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK any");
		ssid = NULL;
	} else {
		id = atoi(cmd);
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK id=%d", id);

		ssid = wpa_config_get_network(wpa_s->conf, id);
		if (ssid == NULL) {
			wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find "
				   "network id=%d", id);
			return -1;
		}
		if (ssid->disabled == 2) {
			wpa_printf(MSG_DEBUG, "CTRL_IFACE: Cannot use "
				   "SELECT_NETWORK with persistent P2P group");
			return -1;
		}
	}

	pos = os_strstr(cmd, " freq=");
	if (pos) {
		int *freqs = freq_range_to_channel_list(wpa_s, pos + 6);
		if (freqs) {
			wpa_s->scan_req = MANUAL_SCAN_REQ;
			os_free(wpa_s->manual_scan_freqs);
			wpa_s->manual_scan_freqs = freqs;
		}
	}

	wpa_supplicant_select_network(wpa_s, ssid);

	return 0;
}


static int wpa_supplicant_ctrl_iface_enable_network(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	int id;
	struct wpa_ssid *ssid;

	/* cmd: "<network id>" or "all" */
	if (os_strcmp(cmd, "all") == 0) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK all");
		ssid = NULL;
	} else {
		id = atoi(cmd);
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK id=%d", id);

		ssid = wpa_config_get_network(wpa_s->conf, id);
		if (ssid == NULL) {
			wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find "
				   "network id=%d", id);
			return -1;
		}
		if (ssid->disabled == 2) {
			wpa_printf(MSG_DEBUG, "CTRL_IFACE: Cannot use "
				   "ENABLE_NETWORK with persistent P2P group");
			return -1;
		}

		if (os_strstr(cmd, " no-connect")) {
			ssid->disabled = 0;
			return 0;
		}
	}
	wpa_supplicant_enable_network(wpa_s, ssid);

	return 0;
}


static int wpa_supplicant_ctrl_iface_disable_network(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	int id;
	struct wpa_ssid *ssid;

	/* cmd: "<network id>" or "all" */
	if (os_strcmp(cmd, "all") == 0) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK all");
		ssid = NULL;
	} else {
		id = atoi(cmd);
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK id=%d", id);

		ssid = wpa_config_get_network(wpa_s->conf, id);
		if (ssid == NULL) {
			wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find "
				   "network id=%d", id);
			return -1;
		}
		if (ssid->disabled == 2) {
			wpa_printf(MSG_DEBUG, "CTRL_IFACE: Cannot use "
				   "DISABLE_NETWORK with persistent P2P "
				   "group");
			return -1;
		}
	}
	wpa_supplicant_disable_network(wpa_s, ssid);

	return 0;
}


static int wpa_supplicant_ctrl_iface_add_network(
	struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
{
	struct wpa_ssid *ssid;
	int ret;

	wpa_printf(MSG_DEBUG, "CTRL_IFACE: ADD_NETWORK");

	ssid = wpa_config_add_network(wpa_s->conf);
	if (ssid == NULL)
		return -1;

	wpas_notify_network_added(wpa_s, ssid);

	ssid->disabled = 1;
	wpa_config_set_network_defaults(ssid);

	ret = os_snprintf(buf, buflen, "%d\n", ssid->id);
	if (os_snprintf_error(buflen, ret))
		return -1;
	return ret;
}


static int wpa_supplicant_ctrl_iface_remove_network(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	int id;
	struct wpa_ssid *ssid;
	int was_disabled;

	/* cmd: "<network id>" or "all" */
	if (os_strcmp(cmd, "all") == 0) {
		wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK all");
		if (wpa_s->sched_scanning)
			wpa_supplicant_cancel_sched_scan(wpa_s);

		eapol_sm_invalidate_cached_session(wpa_s->eapol);
		if (wpa_s->current_ssid) {
#ifdef CONFIG_SME
			wpa_s->sme.prev_bssid_set = 0;
#endif /* CONFIG_SME */
			wpa_sm_set_config(wpa_s->wpa, NULL);
			eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
			wpa_s->own_disconnect_req = 1;
			wpa_supplicant_deauthenticate(
				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
		}
		ssid = wpa_s->conf->ssid;
		while (ssid) {
			struct wpa_ssid *remove_ssid = ssid;
			id = ssid->id;
			ssid = ssid->next;
			if (wpa_s->last_ssid == remove_ssid)
				wpa_s->last_ssid = NULL;
			wpas_notify_network_removed(wpa_s, remove_ssid);
			wpa_config_remove_network(wpa_s->conf, id);
		}
		return 0;
	}

	id = atoi(cmd);
	wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK id=%d", id);