src/ap/ctrl_iface_ap.c - vendor/opensource/hostap - Git at Google

 /*
  * Control interface for shared AP commands
  * Copyright (c) 2004-2014, 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"

 #include "utils/common.h"
 #include "common/ieee802_11_defs.h"
 #include "common/sae.h"
 #include "eapol_auth/eapol_auth_sm.h"
 #include "hostapd.h"
 #include "ieee802_1x.h"
 #include "wpa_auth.h"
 #include "ieee802_11.h"
 #include "sta_info.h"
 #include "wps_hostapd.h"
 #include "p2p_hostapd.h"
 #include "ctrl_iface_ap.h"
 #include "ap_drv_ops.h"


 static int hostapd_get_sta_tx_rx(struct hostapd_data *hapd,
 				 struct sta_info *sta,
 				 char *buf, size_t buflen)
 {
 	struct hostap_sta_driver_data data;
 	int ret;

 	if (hostapd_drv_read_sta_data(hapd, &data, sta->addr) < 0)
 		return 0;

 	ret = os_snprintf(buf, buflen, "rx_packets=%lu\ntx_packets=%lu\n"
 			  "rx_bytes=%lu\ntx_bytes=%lu\n",
 			  data.rx_packets, data.tx_packets,
 			  data.rx_bytes, data.tx_bytes);
 	if (os_snprintf_error(buflen, ret))
 		return 0;
 	return ret;
 }


 static int hostapd_get_sta_conn_time(struct sta_info *sta,
 				     char *buf, size_t buflen)
 {
 	struct os_reltime age;
 	int ret;

 	if (!sta->connected_time.sec)
 		return 0;

 	os_reltime_age(&sta->connected_time, &age);

 	ret = os_snprintf(buf, buflen, "connected_time=%u\n",
 			  (unsigned int) age.sec);
 	if (os_snprintf_error(buflen, ret))
 		return 0;
 	return ret;
 }


 static const char * timeout_next_str(int val)
 {
 	switch (val) {
 	case STA_NULLFUNC:
 		return "NULLFUNC POLL";
 	case STA_DISASSOC:
 		return "DISASSOC";
 	case STA_DEAUTH:
 		return "DEAUTH";
 	case STA_REMOVE:
 		return "REMOVE";
 	case STA_DISASSOC_FROM_CLI:
 		return "DISASSOC_FROM_CLI";
 	}

 	return "?";
 }


 static int hostapd_ctrl_iface_sta_mib(struct hostapd_data *hapd,
 				      struct sta_info *sta,
 				      char *buf, size_t buflen)
 {
 	int len, res, ret, i;

 	if (!sta)
 		return 0;

 	len = 0;
 	ret = os_snprintf(buf + len, buflen - len, MACSTR "\nflags=",
 			  MAC2STR(sta->addr));
 	if (os_snprintf_error(buflen - len, ret))
 		return len;
 	len += ret;

 	ret = ap_sta_flags_txt(sta->flags, buf + len, buflen - len);
 	if (ret < 0)
 		return len;
 	len += ret;

 	ret = os_snprintf(buf + len, buflen - len, "\naid=%d\ncapability=0x%x\n"
 			  "listen_interval=%d\nsupported_rates=",
 			  sta->aid, sta->capability, sta->listen_interval);
 	if (os_snprintf_error(buflen - len, ret))
 		return len;
 	len += ret;

 	for (i = 0; i < sta->supported_rates_len; i++) {
 		ret = os_snprintf(buf + len, buflen - len, "%02x%s",
 				  sta->supported_rates[i],
 				  i + 1 < sta->supported_rates_len ? " " : "");
 		if (os_snprintf_error(buflen - len, ret))
 			return len;
 		len += ret;
 	}

 	ret = os_snprintf(buf + len, buflen - len, "\ntimeout_next=%s\n",
 			  timeout_next_str(sta->timeout_next));
 	if (os_snprintf_error(buflen - len, ret))
 		return len;
 	len += ret;

 	res = ieee802_11_get_mib_sta(hapd, sta, buf + len, buflen - len);
 	if (res >= 0)
 		len += res;
 	res = wpa_get_mib_sta(sta->wpa_sm, buf + len, buflen - len);
 	if (res >= 0)
 		len += res;
 	res = ieee802_1x_get_mib_sta(hapd, sta, buf + len, buflen - len);
 	if (res >= 0)
 		len += res;
 	res = hostapd_wps_get_mib_sta(hapd, sta->addr, buf + len,
 				      buflen - len);
 	if (res >= 0)
 		len += res;
 	res = hostapd_p2p_get_mib_sta(hapd, sta, buf + len, buflen - len);
 	if (res >= 0)
 		len += res;

 	len += hostapd_get_sta_tx_rx(hapd, sta, buf + len, buflen - len);
 	len += hostapd_get_sta_conn_time(sta, buf + len, buflen - len);

 #ifdef CONFIG_SAE
 	if (sta->sae && sta->sae->state == SAE_ACCEPTED) {
 		res = os_snprintf(buf + len, buflen - len, "sae_group=%d\n",
 				  sta->sae->group);
 		if (!os_snprintf_error(buflen - len, res))
 			len += res;
 	}
 #endif /* CONFIG_SAE */

 	return len;
 }


 int hostapd_ctrl_iface_sta_first(struct hostapd_data *hapd,
 				 char *buf, size_t buflen)
 {
 	return hostapd_ctrl_iface_sta_mib(hapd, hapd->sta_list, buf, buflen);
 }


 int hostapd_ctrl_iface_sta(struct hostapd_data *hapd, const char *txtaddr,
 			   char *buf, size_t buflen)
 {
 	u8 addr[ETH_ALEN];
 	int ret;
 	const char *pos;
 	struct sta_info *sta;

 	if (hwaddr_aton(txtaddr, addr)) {
 		ret = os_snprintf(buf, buflen, "FAIL\n");
 		if (os_snprintf_error(buflen, ret))
 			return 0;
 		return ret;
 	}

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

 	pos = os_strchr(txtaddr, ' ');
 	if (pos) {
 		pos++;

 #ifdef HOSTAPD_DUMP_STATE
 		if (os_strcmp(pos, "eapol") == 0) {
 			if (sta->eapol_sm == NULL)
 				return -1;
 			return eapol_auth_dump_state(sta->eapol_sm, buf,
 						     buflen);
 		}
 #endif /* HOSTAPD_DUMP_STATE */

 		return -1;
 	}

 	return hostapd_ctrl_iface_sta_mib(hapd, sta, buf, buflen);
 }


 int hostapd_ctrl_iface_sta_next(struct hostapd_data *hapd, const char *txtaddr,
 				char *buf, size_t buflen)
 {
 	u8 addr[ETH_ALEN];
 	struct sta_info *sta;
 	int ret;

 	if (hwaddr_aton(txtaddr, addr) ||
 	    (sta = ap_get_sta(hapd, addr)) == NULL) {
 		ret = os_snprintf(buf, buflen, "FAIL\n");
 		if (os_snprintf_error(buflen, ret))
 			return 0;
 		return ret;
 	}

 	if (!sta->next)
 		return 0;

 	return hostapd_ctrl_iface_sta_mib(hapd, sta->next, buf, buflen);
 }


 #ifdef CONFIG_P2P_MANAGER
 static int p2p_manager_disconnect(struct hostapd_data *hapd, u16 stype,
 				  u8 minor_reason_code, const u8 *addr)
 {
 	struct ieee80211_mgmt *mgmt;
 	int ret;
 	u8 *pos;

 	if (hapd->driver->send_frame == NULL)
 		return -1;

 	mgmt = os_zalloc(sizeof(*mgmt) + 100);
 	if (mgmt == NULL)
 		return -1;

 	mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, stype);
 	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "P2P: Disconnect STA " MACSTR
 		" with minor reason code %u (stype=%u (%s))",
 		MAC2STR(addr), minor_reason_code, stype,
 		fc2str(mgmt->frame_control));

 	os_memcpy(mgmt->da, addr, ETH_ALEN);
 	os_memcpy(mgmt->sa, hapd->own_addr, ETH_ALEN);
 	os_memcpy(mgmt->bssid, hapd->own_addr, ETH_ALEN);
 	if (stype == WLAN_FC_STYPE_DEAUTH) {
 		mgmt->u.deauth.reason_code =
 			host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
 		pos = (u8 *) (&mgmt->u.deauth.reason_code + 1);
 	} else {
 		mgmt->u.disassoc.reason_code =
 			host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
 		pos = (u8 *) (&mgmt->u.disassoc.reason_code + 1);
 	}

 	*pos++ = WLAN_EID_VENDOR_SPECIFIC;
 	*pos++ = 4 + 3 + 1;
 	WPA_PUT_BE32(pos, P2P_IE_VENDOR_TYPE);
 	pos += 4;

 	*pos++ = P2P_ATTR_MINOR_REASON_CODE;
 	WPA_PUT_LE16(pos, 1);
 	pos += 2;
 	*pos++ = minor_reason_code;

 	ret = hapd->driver->send_frame(hapd->drv_priv, (u8 *) mgmt,
 				       pos - (u8 *) mgmt, 1);
 	os_free(mgmt);

 	return ret < 0 ? -1 : 0;
 }
 #endif /* CONFIG_P2P_MANAGER */


 int hostapd_ctrl_iface_deauthenticate(struct hostapd_data *hapd,
 				      const char *txtaddr)
 {
 	u8 addr[ETH_ALEN];
 	struct sta_info *sta;
 	const char *pos;
 	u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;

 	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DEAUTHENTICATE %s",
 		txtaddr);

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

 	pos = os_strstr(txtaddr, " reason=");
 	if (pos)
 		reason = atoi(pos + 8);

 	pos = os_strstr(txtaddr, " test=");
 	if (pos) {
 		struct ieee80211_mgmt mgmt;
 		int encrypt;
 		if (hapd->driver->send_frame == NULL)
 			return -1;
 		pos += 6;
 		encrypt = atoi(pos);
 		os_memset(&mgmt, 0, sizeof(mgmt));
 		mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 						  WLAN_FC_STYPE_DEAUTH);
 		os_memcpy(mgmt.da, addr, ETH_ALEN);
 		os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
 		os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
 		mgmt.u.deauth.reason_code = host_to_le16(reason);
 		if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
 					     IEEE80211_HDRLEN +
 					     sizeof(mgmt.u.deauth),
 					     encrypt) < 0)
 			return -1;
 		return 0;
 	}

 #ifdef CONFIG_P2P_MANAGER
 	pos = os_strstr(txtaddr, " p2p=");
 	if (pos) {
 		return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DEAUTH,
 					      atoi(pos + 5), addr);
 	}
 #endif /* CONFIG_P2P_MANAGER */

 	hostapd_drv_sta_deauth(hapd, addr, reason);
 	sta = ap_get_sta(hapd, addr);
 	if (sta)
 		ap_sta_deauthenticate(hapd, sta, reason);
 	else if (addr[0] == 0xff)
 		hostapd_free_stas(hapd);

 	return 0;
 }


 int hostapd_ctrl_iface_disassociate(struct hostapd_data *hapd,
 				    const char *txtaddr)
 {
 	u8 addr[ETH_ALEN];
 	struct sta_info *sta;
 	const char *pos;
 	u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;

 	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DISASSOCIATE %s",
 		txtaddr);

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

 	pos = os_strstr(txtaddr, " reason=");
 	if (pos)
 		reason = atoi(pos + 8);

 	pos = os_strstr(txtaddr, " test=");
 	if (pos) {
 		struct ieee80211_mgmt mgmt;
 		int encrypt;
 		if (hapd->driver->send_frame == NULL)
 			return -1;
 		pos += 6;
 		encrypt = atoi(pos);
 		os_memset(&mgmt, 0, sizeof(mgmt));
 		mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 						  WLAN_FC_STYPE_DISASSOC);
 		os_memcpy(mgmt.da, addr, ETH_ALEN);
 		os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
 		os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
 		mgmt.u.disassoc.reason_code = host_to_le16(reason);
 		if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
 					     IEEE80211_HDRLEN +
 					     sizeof(mgmt.u.deauth),
 					     encrypt) < 0)
 			return -1;
 		return 0;
 	}

 #ifdef CONFIG_P2P_MANAGER
 	pos = os_strstr(txtaddr, " p2p=");
 	if (pos) {
 		return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DISASSOC,
 					      atoi(pos + 5), addr);
 	}
 #endif /* CONFIG_P2P_MANAGER */

 	hostapd_drv_sta_disassoc(hapd, addr, reason);
 	sta = ap_get_sta(hapd, addr);
 	if (sta)
 		ap_sta_disassociate(hapd, sta, reason);
 	else if (addr[0] == 0xff)
 		hostapd_free_stas(hapd);

 	return 0;
 }


 int hostapd_ctrl_iface_status(struct hostapd_data *hapd, char *buf,
 			      size_t buflen)
 {
 	struct hostapd_iface *iface = hapd->iface;
 	int len = 0, ret;
 	size_t i;

 	ret = os_snprintf(buf + len, buflen - len,
 			  "state=%s\n"
 			  "phy=%s\n"
 			  "freq=%d\n"
 			  "num_sta_non_erp=%d\n"
 			  "num_sta_no_short_slot_time=%d\n"
 			  "num_sta_no_short_preamble=%d\n"
 			  "olbc=%d\n"
 			  "num_sta_ht_no_gf=%d\n"
 			  "num_sta_no_ht=%d\n"
 			  "num_sta_ht_20_mhz=%d\n"
 			  "num_sta_ht40_intolerant=%d\n"
 			  "olbc_ht=%d\n"
 			  "ht_op_mode=0x%x\n",
 			  hostapd_state_text(iface->state),
 			  iface->phy,
 			  iface->freq,
 			  iface->num_sta_non_erp,
 			  iface->num_sta_no_short_slot_time,
 			  iface->num_sta_no_short_preamble,
 			  iface->olbc,
 			  iface->num_sta_ht_no_gf,
 			  iface->num_sta_no_ht,
 			  iface->num_sta_ht_20mhz,
 			  iface->num_sta_ht40_intolerant,
 			  iface->olbc_ht,
 			  iface->ht_op_mode);
 	if (os_snprintf_error(buflen - len, ret))
 		return len;
 	len += ret;

 	if (!iface->cac_started || !iface->dfs_cac_ms) {
 		ret = os_snprintf(buf + len, buflen - len,
 				  "cac_time_seconds=%d\n"
 				  "cac_time_left_seconds=N/A\n",
 				  iface->dfs_cac_ms / 1000);
 	} else {
 		/* CAC started and CAC time set - calculate remaining time */
 		struct os_reltime now;
 		unsigned int left_time;

 		os_reltime_age(&iface->dfs_cac_start, &now);
 		left_time = iface->dfs_cac_ms / 1000 - now.sec;
 		ret = os_snprintf(buf + len, buflen - len,
 				  "cac_time_seconds=%u\n"
 				  "cac_time_left_seconds=%u\n",
 				  iface->dfs_cac_ms / 1000,
 				  left_time);
 	}
 	if (os_snprintf_error(buflen - len, ret))
 		return len;
 	len += ret;

 	ret = os_snprintf(buf + len, buflen - len,
 			  "channel=%u\n"
 			  "secondary_channel=%d\n"
 			  "ieee80211n=%d\n"
 			  "ieee80211ac=%d\n"
 			  "vht_oper_chwidth=%d\n"
 			  "vht_oper_centr_freq_seg0_idx=%d\n"
 			  "vht_oper_centr_freq_seg1_idx=%d\n",
 			  iface->conf->channel,
 			  iface->conf->secondary_channel,
 			  iface->conf->ieee80211n,
 			  iface->conf->ieee80211ac,
 			  iface->conf->vht_oper_chwidth,
 			  iface->conf->vht_oper_centr_freq_seg0_idx,
 			  iface->conf->vht_oper_centr_freq_seg1_idx);
 	if (os_snprintf_error(buflen - len, ret))
 		return len;
 	len += ret;

 	for (i = 0; i < iface->num_bss; i++) {
 		struct hostapd_data *bss = iface->bss[i];
 		ret = os_snprintf(buf + len, buflen - len,
 				  "bss[%d]=%s\n"
 				  "bssid[%d]=" MACSTR "\n"
 				  "ssid[%d]=%s\n"
 				  "num_sta[%d]=%d\n",
 				  (int) i, bss->conf->iface,
 				  (int) i, MAC2STR(bss->own_addr),
 				  (int) i,
 				  wpa_ssid_txt(bss->conf->ssid.ssid,
 					       bss->conf->ssid.ssid_len),
 				  (int) i, bss->num_sta);
 		if (os_snprintf_error(buflen - len, ret))
 			return len;
 		len += ret;
 	}

 	return len;
 }


 int hostapd_parse_csa_settings(const char *pos,
 			       struct csa_settings *settings)
 {
 	char *end;

 	os_memset(settings, 0, sizeof(*settings));
 	settings->cs_count = strtol(pos, &end, 10);
 	if (pos == end) {
 		wpa_printf(MSG_ERROR, "chanswitch: invalid cs_count provided");
 		return -1;
 	}

 	settings->freq_params.freq = atoi(end);
 	if (settings->freq_params.freq == 0) {
 		wpa_printf(MSG_ERROR, "chanswitch: invalid freq provided");
 		return -1;
 	}

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

 	SET_CSA_SETTING(center_freq1);
 	SET_CSA_SETTING(center_freq2);
 	SET_CSA_SETTING(bandwidth);
 	SET_CSA_SETTING(sec_channel_offset);
 	settings->freq_params.ht_enabled = !!os_strstr(pos, " ht");
 	settings->freq_params.vht_enabled = !!os_strstr(pos, " vht");
 	settings->block_tx = !!os_strstr(pos, " blocktx");
 #undef SET_CSA_SETTING

 	return 0;
 }


 int hostapd_ctrl_iface_stop_ap(struct hostapd_data *hapd)
 {
 	return hostapd_drv_stop_ap(hapd);
 }
	/*
	* Control interface for shared AP commands
	* Copyright (c) 2004-2014, 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"

	#include "utils/common.h"
	#include "common/ieee802_11_defs.h"
	#include "common/sae.h"
	#include "eapol_auth/eapol_auth_sm.h"
	#include "hostapd.h"
	#include "ieee802_1x.h"
	#include "wpa_auth.h"
	#include "ieee802_11.h"
	#include "sta_info.h"
	#include "wps_hostapd.h"
	#include "p2p_hostapd.h"
	#include "ctrl_iface_ap.h"
	#include "ap_drv_ops.h"


	static int hostapd_get_sta_tx_rx(struct hostapd_data *hapd,
	struct sta_info *sta,
	char *buf, size_t buflen)
	{
	struct hostap_sta_driver_data data;
	int ret;

	if (hostapd_drv_read_sta_data(hapd, &data, sta->addr) < 0)
	return 0;

	ret = os_snprintf(buf, buflen, "rx_packets=%lu\ntx_packets=%lu\n"
	"rx_bytes=%lu\ntx_bytes=%lu\n",
	data.rx_packets, data.tx_packets,
	data.rx_bytes, data.tx_bytes);
	if (os_snprintf_error(buflen, ret))
	return 0;
	return ret;
	}


	static int hostapd_get_sta_conn_time(struct sta_info *sta,
	char *buf, size_t buflen)
	{
	struct os_reltime age;
	int ret;

	if (!sta->connected_time.sec)
	return 0;

	os_reltime_age(&sta->connected_time, &age);

	ret = os_snprintf(buf, buflen, "connected_time=%u\n",
	(unsigned int) age.sec);
	if (os_snprintf_error(buflen, ret))
	return 0;
	return ret;
	}


	static const char * timeout_next_str(int val)
	{
	switch (val) {
	case STA_NULLFUNC:
	return "NULLFUNC POLL";
	case STA_DISASSOC:
	return "DISASSOC";
	case STA_DEAUTH:
	return "DEAUTH";
	case STA_REMOVE:
	return "REMOVE";
	case STA_DISASSOC_FROM_CLI:
	return "DISASSOC_FROM_CLI";
	}

	return "?";
	}


	static int hostapd_ctrl_iface_sta_mib(struct hostapd_data *hapd,
	struct sta_info *sta,
	char *buf, size_t buflen)
	{
	int len, res, ret, i;

	if (!sta)
	return 0;

	len = 0;
	ret = os_snprintf(buf + len, buflen - len, MACSTR "\nflags=",
	MAC2STR(sta->addr));
	if (os_snprintf_error(buflen - len, ret))
	return len;
	len += ret;

	ret = ap_sta_flags_txt(sta->flags, buf + len, buflen - len);
	if (ret < 0)
	return len;
	len += ret;

	ret = os_snprintf(buf + len, buflen - len, "\naid=%d\ncapability=0x%x\n"
	"listen_interval=%d\nsupported_rates=",
	sta->aid, sta->capability, sta->listen_interval);
	if (os_snprintf_error(buflen - len, ret))
	return len;
	len += ret;

	for (i = 0; i < sta->supported_rates_len; i++) {
	ret = os_snprintf(buf + len, buflen - len, "%02x%s",
	sta->supported_rates[i],
	i + 1 < sta->supported_rates_len ? " " : "");
	if (os_snprintf_error(buflen - len, ret))
	return len;
	len += ret;
	}

	ret = os_snprintf(buf + len, buflen - len, "\ntimeout_next=%s\n",
	timeout_next_str(sta->timeout_next));
	if (os_snprintf_error(buflen - len, ret))
	return len;
	len += ret;

	res = ieee802_11_get_mib_sta(hapd, sta, buf + len, buflen - len);
	if (res >= 0)
	len += res;
	res = wpa_get_mib_sta(sta->wpa_sm, buf + len, buflen - len);
	if (res >= 0)
	len += res;
	res = ieee802_1x_get_mib_sta(hapd, sta, buf + len, buflen - len);
	if (res >= 0)
	len += res;
	res = hostapd_wps_get_mib_sta(hapd, sta->addr, buf + len,
	buflen - len);
	if (res >= 0)
	len += res;
	res = hostapd_p2p_get_mib_sta(hapd, sta, buf + len, buflen - len);
	if (res >= 0)
	len += res;

	len += hostapd_get_sta_tx_rx(hapd, sta, buf + len, buflen - len);
	len += hostapd_get_sta_conn_time(sta, buf + len, buflen - len);

	#ifdef CONFIG_SAE
	if (sta->sae && sta->sae->state == SAE_ACCEPTED) {
	res = os_snprintf(buf + len, buflen - len, "sae_group=%d\n",
	sta->sae->group);
	if (!os_snprintf_error(buflen - len, res))
	len += res;
	}
	#endif /* CONFIG_SAE */

	return len;
	}


	int hostapd_ctrl_iface_sta_first(struct hostapd_data *hapd,
	char *buf, size_t buflen)
	{
	return hostapd_ctrl_iface_sta_mib(hapd, hapd->sta_list, buf, buflen);
	}


	int hostapd_ctrl_iface_sta(struct hostapd_data hapd, const char txtaddr,
	char *buf, size_t buflen)
	{
	u8 addr[ETH_ALEN];
	int ret;
	const char *pos;
	struct sta_info *sta;

	if (hwaddr_aton(txtaddr, addr)) {
	ret = os_snprintf(buf, buflen, "FAIL\n");
	if (os_snprintf_error(buflen, ret))
	return 0;
	return ret;
	}

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

	pos = os_strchr(txtaddr, ' ');
	if (pos) {
	pos++;

	#ifdef HOSTAPD_DUMP_STATE
	if (os_strcmp(pos, "eapol") == 0) {
	if (sta->eapol_sm == NULL)
	return -1;
	return eapol_auth_dump_state(sta->eapol_sm, buf,
	buflen);
	}
	#endif /* HOSTAPD_DUMP_STATE */

	return -1;
	}

	return hostapd_ctrl_iface_sta_mib(hapd, sta, buf, buflen);
	}


	int hostapd_ctrl_iface_sta_next(struct hostapd_data hapd, const char txtaddr,
	char *buf, size_t buflen)
	{
	u8 addr[ETH_ALEN];
	struct sta_info *sta;
	int ret;

	if (hwaddr_aton(txtaddr, addr) \|\|
	(sta = ap_get_sta(hapd, addr)) == NULL) {
	ret = os_snprintf(buf, buflen, "FAIL\n");
	if (os_snprintf_error(buflen, ret))
	return 0;
	return ret;
	}

	if (!sta->next)
	return 0;

	return hostapd_ctrl_iface_sta_mib(hapd, sta->next, buf, buflen);
	}


	#ifdef CONFIG_P2P_MANAGER
	static int p2p_manager_disconnect(struct hostapd_data *hapd, u16 stype,
	u8 minor_reason_code, const u8 *addr)
	{
	struct ieee80211_mgmt *mgmt;
	int ret;
	u8 *pos;

	if (hapd->driver->send_frame == NULL)
	return -1;

	mgmt = os_zalloc(sizeof(*mgmt) + 100);
	if (mgmt == NULL)
	return -1;

	mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, stype);
	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "P2P: Disconnect STA " MACSTR
	" with minor reason code %u (stype=%u (%s))",
	MAC2STR(addr), minor_reason_code, stype,
	fc2str(mgmt->frame_control));

	os_memcpy(mgmt->da, addr, ETH_ALEN);
	os_memcpy(mgmt->sa, hapd->own_addr, ETH_ALEN);
	os_memcpy(mgmt->bssid, hapd->own_addr, ETH_ALEN);
	if (stype == WLAN_FC_STYPE_DEAUTH) {
	mgmt->u.deauth.reason_code =
	host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
	pos = (u8 *) (&mgmt->u.deauth.reason_code + 1);
	} else {
	mgmt->u.disassoc.reason_code =
	host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
	pos = (u8 *) (&mgmt->u.disassoc.reason_code + 1);
	}

	*pos++ = WLAN_EID_VENDOR_SPECIFIC;
	*pos++ = 4 + 3 + 1;
	WPA_PUT_BE32(pos, P2P_IE_VENDOR_TYPE);
	pos += 4;

	*pos++ = P2P_ATTR_MINOR_REASON_CODE;
	WPA_PUT_LE16(pos, 1);
	pos += 2;
	*pos++ = minor_reason_code;

	ret = hapd->driver->send_frame(hapd->drv_priv, (u8 *) mgmt,
	pos - (u8 *) mgmt, 1);
	os_free(mgmt);

	return ret < 0 ? -1 : 0;
	}
	#endif /* CONFIG_P2P_MANAGER */


	int hostapd_ctrl_iface_deauthenticate(struct hostapd_data *hapd,
	const char *txtaddr)
	{
	u8 addr[ETH_ALEN];
	struct sta_info *sta;
	const char *pos;
	u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;

	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DEAUTHENTICATE %s",
	txtaddr);

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

	pos = os_strstr(txtaddr, " reason=");
	if (pos)
	reason = atoi(pos + 8);

	pos = os_strstr(txtaddr, " test=");
	if (pos) {
	struct ieee80211_mgmt mgmt;
	int encrypt;
	if (hapd->driver->send_frame == NULL)
	return -1;
	pos += 6;
	encrypt = atoi(pos);
	os_memset(&mgmt, 0, sizeof(mgmt));
	mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
	WLAN_FC_STYPE_DEAUTH);
	os_memcpy(mgmt.da, addr, ETH_ALEN);
	os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
	os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
	mgmt.u.deauth.reason_code = host_to_le16(reason);
	if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
	IEEE80211_HDRLEN +
	sizeof(mgmt.u.deauth),
	encrypt) < 0)
	return -1;
	return 0;
	}

	#ifdef CONFIG_P2P_MANAGER
	pos = os_strstr(txtaddr, " p2p=");
	if (pos) {
	return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DEAUTH,
	atoi(pos + 5), addr);
	}
	#endif /* CONFIG_P2P_MANAGER */

	hostapd_drv_sta_deauth(hapd, addr, reason);
	sta = ap_get_sta(hapd, addr);
	if (sta)
	ap_sta_deauthenticate(hapd, sta, reason);
	else if (addr[0] == 0xff)
	hostapd_free_stas(hapd);

	return 0;
	}


	int hostapd_ctrl_iface_disassociate(struct hostapd_data *hapd,
	const char *txtaddr)
	{
	u8 addr[ETH_ALEN];
	struct sta_info *sta;
	const char *pos;
	u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;

	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DISASSOCIATE %s",
	txtaddr);

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

	pos = os_strstr(txtaddr, " reason=");
	if (pos)
	reason = atoi(pos + 8);

	pos = os_strstr(txtaddr, " test=");
	if (pos) {
	struct ieee80211_mgmt mgmt;
	int encrypt;
	if (hapd->driver->send_frame == NULL)
	return -1;
	pos += 6;
	encrypt = atoi(pos);
	os_memset(&mgmt, 0, sizeof(mgmt));
	mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
	WLAN_FC_STYPE_DISASSOC);
	os_memcpy(mgmt.da, addr, ETH_ALEN);
	os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
	os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
	mgmt.u.disassoc.reason_code = host_to_le16(reason);
	if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
	IEEE80211_HDRLEN +
	sizeof(mgmt.u.deauth),
	encrypt) < 0)
	return -1;
	return 0;
	}

	#ifdef CONFIG_P2P_MANAGER
	pos = os_strstr(txtaddr, " p2p=");
	if (pos) {
	return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DISASSOC,
	atoi(pos + 5), addr);
	}
	#endif /* CONFIG_P2P_MANAGER */

	hostapd_drv_sta_disassoc(hapd, addr, reason);
	sta = ap_get_sta(hapd, addr);
	if (sta)
	ap_sta_disassociate(hapd, sta, reason);
	else if (addr[0] == 0xff)
	hostapd_free_stas(hapd);

	return 0;
	}


	int hostapd_ctrl_iface_status(struct hostapd_data hapd, char buf,
	size_t buflen)
	{
	struct hostapd_iface *iface = hapd->iface;
	int len = 0, ret;
	size_t i;

	ret = os_snprintf(buf + len, buflen - len,
	"state=%s\n"
	"phy=%s\n"
	"freq=%d\n"
	"num_sta_non_erp=%d\n"
	"num_sta_no_short_slot_time=%d\n"
	"num_sta_no_short_preamble=%d\n"
	"olbc=%d\n"
	"num_sta_ht_no_gf=%d\n"
	"num_sta_no_ht=%d\n"
	"num_sta_ht_20_mhz=%d\n"
	"num_sta_ht40_intolerant=%d\n"
	"olbc_ht=%d\n"
	"ht_op_mode=0x%x\n",
	hostapd_state_text(iface->state),
	iface->phy,
	iface->freq,
	iface->num_sta_non_erp,
	iface->num_sta_no_short_slot_time,
	iface->num_sta_no_short_preamble,
	iface->olbc,
	iface->num_sta_ht_no_gf,
	iface->num_sta_no_ht,
	iface->num_sta_ht_20mhz,
	iface->num_sta_ht40_intolerant,
	iface->olbc_ht,
	iface->ht_op_mode);
	if (os_snprintf_error(buflen - len, ret))
	return len;
	len += ret;

	if (!iface->cac_started \|\| !iface->dfs_cac_ms) {
	ret = os_snprintf(buf + len, buflen - len,
	"cac_time_seconds=%d\n"
	"cac_time_left_seconds=N/A\n",
	iface->dfs_cac_ms / 1000);
	} else {
	/* CAC started and CAC time set - calculate remaining time */
	struct os_reltime now;
	unsigned int left_time;

	os_reltime_age(&iface->dfs_cac_start, &now);
	left_time = iface->dfs_cac_ms / 1000 - now.sec;
	ret = os_snprintf(buf + len, buflen - len,
	"cac_time_seconds=%u\n"
	"cac_time_left_seconds=%u\n",
	iface->dfs_cac_ms / 1000,
	left_time);
	}
	if (os_snprintf_error(buflen - len, ret))
	return len;
	len += ret;

	ret = os_snprintf(buf + len, buflen - len,
	"channel=%u\n"
	"secondary_channel=%d\n"
	"ieee80211n=%d\n"
	"ieee80211ac=%d\n"
	"vht_oper_chwidth=%d\n"
	"vht_oper_centr_freq_seg0_idx=%d\n"
	"vht_oper_centr_freq_seg1_idx=%d\n",
	iface->conf->channel,
	iface->conf->secondary_channel,
	iface->conf->ieee80211n,
	iface->conf->ieee80211ac,
	iface->conf->vht_oper_chwidth,
	iface->conf->vht_oper_centr_freq_seg0_idx,
	iface->conf->vht_oper_centr_freq_seg1_idx);
	if (os_snprintf_error(buflen - len, ret))
	return len;
	len += ret;

	for (i = 0; i < iface->num_bss; i++) {
	struct hostapd_data *bss = iface->bss[i];
	ret = os_snprintf(buf + len, buflen - len,
	"bss[%d]=%s\n"
	"bssid[%d]=" MACSTR "\n"
	"ssid[%d]=%s\n"
	"num_sta[%d]=%d\n",
	(int) i, bss->conf->iface,
	(int) i, MAC2STR(bss->own_addr),
	(int) i,
	wpa_ssid_txt(bss->conf->ssid.ssid,
	bss->conf->ssid.ssid_len),
	(int) i, bss->num_sta);
	if (os_snprintf_error(buflen - len, ret))
	return len;
	len += ret;
	}

	return len;
	}


	int hostapd_parse_csa_settings(const char *pos,
	struct csa_settings *settings)
	{
	char *end;

	os_memset(settings, 0, sizeof(*settings));
	settings->cs_count = strtol(pos, &end, 10);
	if (pos == end) {
	wpa_printf(MSG_ERROR, "chanswitch: invalid cs_count provided");
	return -1;
	}

	settings->freq_params.freq = atoi(end);
	if (settings->freq_params.freq == 0) {
	wpa_printf(MSG_ERROR, "chanswitch: invalid freq provided");
	return -1;
	}

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

	SET_CSA_SETTING(center_freq1);
	SET_CSA_SETTING(center_freq2);
	SET_CSA_SETTING(bandwidth);
	SET_CSA_SETTING(sec_channel_offset);
	settings->freq_params.ht_enabled = !!os_strstr(pos, " ht");
	settings->freq_params.vht_enabled = !!os_strstr(pos, " vht");
	settings->block_tx = !!os_strstr(pos, " blocktx");
	#undef SET_CSA_SETTING

	return 0;
	}


	int hostapd_ctrl_iface_stop_ap(struct hostapd_data *hapd)
	{
	return hostapd_drv_stop_ap(hapd);
	}