diff --git a/hostapd/Android.mk b/hostapd/Android.mk
index edaf6fc..d6d04c5 100644
--- a/hostapd/Android.mk
+++ b/hostapd/Android.mk
@@ -95,6 +95,7 @@
 OBJS += src/ap/pmksa_cache_auth.c
 OBJS += src/ap/ieee802_11_shared.c
 OBJS += src/ap/beacon.c
+OBJS += src/ap/bss_load.c
 OBJS_d =
 OBJS_p =
 LIBS =
@@ -200,6 +201,17 @@
 
 ifdef CONFIG_HS20
 NEED_AES_OMAC1=y
+CONFIG_PROXYARP=y
+endif
+
+ifdef CONFIG_PROXYARP
+CONFIG_L2_PACKET=y
+endif
+
+ifdef CONFIG_SUITEB
+L_CFLAGS += -DCONFIG_SUITEB
+NEED_SHA256=y
+NEED_AES_OMAC1=y
 endif
 
 ifdef CONFIG_IEEE80211W
@@ -854,6 +866,15 @@
 OBJS += src/ap/gas_serv.c
 endif
 
+ifdef CONFIG_PROXYARP
+L_CFLAGS += -DCONFIG_PROXYARP
+OBJS += src/ap/x_snoop.c
+OBJS += src/ap/dhcp_snoop.c
+ifdef CONFIG_IPV6
+OBJS += src/ap/ndisc_snoop.c
+endif
+endif
+
 OBJS += src/drivers/driver_common.c
 
 ifdef CONFIG_ACS
diff --git a/hostapd/Makefile b/hostapd/Makefile
index ac6373e..e64c249 100644
--- a/hostapd/Makefile
+++ b/hostapd/Makefile
@@ -9,6 +9,8 @@
 CFLAGS += -I$(abspath ../src)
 CFLAGS += -I$(abspath ../src/utils)
 
+export BINDIR ?= /usr/local/bin/
+
 # Uncomment following line and set the path to your kernel tree include
 # directory if your C library does not include all header files.
 # CFLAGS += -DUSE_KERNEL_HEADERS -I/usr/src/linux/include
@@ -59,6 +61,7 @@
 OBJS += ../src/ap/pmksa_cache_auth.o
 OBJS += ../src/ap/ieee802_11_shared.o
 OBJS += ../src/ap/beacon.o
+OBJS += ../src/ap/bss_load.o
 
 OBJS_c = hostapd_cli.o ../src/common/wpa_ctrl.o ../src/utils/os_$(CONFIG_OS).o
 
@@ -187,6 +190,17 @@
 
 ifdef CONFIG_HS20
 NEED_AES_OMAC1=y
+CONFIG_PROXYARP=y
+endif
+
+ifdef CONFIG_PROXYARP
+CONFIG_L2_PACKET=y
+endif
+
+ifdef CONFIG_SUITEB
+CFLAGS += -DCONFIG_SUITEB
+NEED_SHA256=y
+NEED_AES_OMAC1=y
 endif
 
 ifdef CONFIG_IEEE80211W
@@ -246,6 +260,12 @@
 endif
 
 
+ifdef CONFIG_ERP
+CFLAGS += -DCONFIG_ERP
+NEED_SHA256=y
+NEED_HMAC_SHA256_KDF=y
+endif
+
 ifdef CONFIG_EAP_MD5
 CFLAGS += -DEAP_SERVER_MD5
 OBJS += ../src/eap_server/eap_server_md5.o
@@ -755,6 +775,9 @@
 ifdef NEED_TLS_PRF_SHA256
 OBJS += ../src/crypto/sha256-tlsprf.o
 endif
+ifdef NEED_HMAC_SHA256_KDF
+OBJS += ../src/crypto/sha256-kdf.o
+endif
 endif
 
 ifdef NEED_DH_GROUPS
@@ -839,6 +862,15 @@
 OBJS += ../src/ap/gas_serv.o
 endif
 
+ifdef CONFIG_PROXYARP
+CFLAGS += -DCONFIG_PROXYARP
+OBJS += ../src/ap/x_snoop.o
+OBJS += ../src/ap/dhcp_snoop.o
+ifdef CONFIG_IPV6
+OBJS += ../src/ap/ndisc_snoop.o
+endif
+endif
+
 OBJS += ../src/drivers/driver_common.o
 
 ifdef CONFIG_WPA_CLI_EDIT
@@ -881,6 +913,10 @@
 Q=
 E=true
 endif
+ifeq ($(QUIET), 1)
+Q=@
+E=true
+endif
 
 ifdef CONFIG_CODE_COVERAGE
 %.o: %.c
@@ -901,9 +937,10 @@
 		exit 1; \
 	fi
 
-install: all
-	mkdir -p $(DESTDIR)/usr/local/bin
-	for i in $(ALL); do cp -f $$i $(DESTDIR)/usr/local/bin/$$i; done
+$(DESTDIR)$(BINDIR)/%: %
+	install -D $(<) $(@)
+
+install: $(addprefix $(DESTDIR)$(BINDIR)/,$(ALL))
 
 ../src/drivers/build.hostapd:
 	@if [ -f ../src/drivers/build.wpa_supplicant ]; then \
diff --git a/hostapd/README b/hostapd/README
index 50868ee..ea016cc 100644
--- a/hostapd/README
+++ b/hostapd/README
@@ -74,12 +74,6 @@
 	Please note that station firmware version needs to be 1.7.0 or newer
 	to work in WPA mode.
 
-	madwifi driver for cards based on Atheros chip set (ar521x)
-	(http://sourceforge.net/projects/madwifi/)
-	Please note that you will need to add the correct path for
-	madwifi driver root directory in .config (see defconfig file for
-	an example: CFLAGS += -I<path>)
-
 	mac80211-based drivers that support AP mode (with driver=nl80211).
 	This includes drivers for Atheros (ath9k) and Broadcom (b43)
 	chipsets.
diff --git a/hostapd/README-WPS b/hostapd/README-WPS
index bb7d35f..d5f713a 100644
--- a/hostapd/README-WPS
+++ b/hostapd/README-WPS
@@ -58,10 +58,9 @@
 
 WPS is an optional component that needs to be enabled in hostapd build
 configuration (.config). Here is an example configuration that
-includes WPS support and uses madwifi driver interface:
+includes WPS support and uses nl80211 driver interface:
 
-CONFIG_DRIVER_MADWIFI=y
-CFLAGS += -I/usr/src/madwifi-0.9.3
+CONFIG_DRIVER_NL80211=y
 CONFIG_WPS=y
 CONFIG_WPS_UPNP=y
 
@@ -74,8 +73,8 @@
 (hostapd.conf) that enables WPS:
 
 # Configure the driver and network interface
-driver=madwifi
-interface=ath0
+driver=nl80211
+interface=wlan0
 
 # WPA2-Personal configuration for the AP
 ssid=wps-test
diff --git a/hostapd/android.config b/hostapd/android.config
index ad83308..938aa54 100644
--- a/hostapd/android.config
+++ b/hostapd/android.config
@@ -15,10 +15,6 @@
 # Driver interface for wired authenticator
 #CONFIG_DRIVER_WIRED=y
 
-# Driver interface for madwifi driver
-#CONFIG_DRIVER_MADWIFI=y
-#CFLAGS += -I../../madwifi # change to the madwifi source directory
-
 # Driver interface for drivers using the nl80211 kernel interface
 #CONFIG_DRIVER_NL80211=y
 # driver_nl80211.c requires a rather new libnl (version 1.1) which may not be
@@ -132,7 +128,7 @@
 #CONFIG_IEEE80211R=y
 
 # Use the hostapd's IEEE 802.11 authentication (ACL), but without
-# the IEEE 802.11 Management capability (e.g., madwifi or FreeBSD/net80211)
+# the IEEE 802.11 Management capability (e.g., FreeBSD/net80211)
 #CONFIG_DRIVER_RADIUS_ACL=y
 
 # IEEE 802.11n (High Throughput) support
diff --git a/hostapd/config_file.c b/hostapd/config_file.c
index 44de826..e30efbe 100644
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -680,6 +680,8 @@
 		else if (os_strcmp(start, "FT-SAE") == 0)
 			val |= WPA_KEY_MGMT_FT_SAE;
 #endif /* CONFIG_SAE */
+		else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
+			val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
 		else {
 			wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
 				   line, start);
@@ -1865,6 +1867,9 @@
 				   line, pos);
 			return 1;
 		}
+	} else if (os_strcmp(buf, "driver_params") == 0) {
+		os_free(conf->driver_params);
+		conf->driver_params = os_strdup(pos);
 	} else if (os_strcmp(buf, "debug") == 0) {
 		wpa_printf(MSG_DEBUG, "Line %d: DEPRECATED: 'debug' configuration variable is not used anymore",
 			   line);
@@ -1984,6 +1989,9 @@
 	} else if (os_strcmp(buf, "dh_file") == 0) {
 		os_free(bss->dh_file);
 		bss->dh_file = os_strdup(pos);
+	} else if (os_strcmp(buf, "openssl_ciphers") == 0) {
+		os_free(bss->openssl_ciphers);
+		bss->openssl_ciphers = os_strdup(pos);
 	} else if (os_strcmp(buf, "fragment_size") == 0) {
 		bss->fragment_size = atoi(pos);
 #ifdef EAP_SERVER_FAST
@@ -2044,6 +2052,8 @@
 	} else if (os_strcmp(buf, "pwd_group") == 0) {
 		bss->pwd_group = atoi(pos);
 #endif /* EAP_SERVER_PWD */
+	} else if (os_strcmp(buf, "eap_server_erp") == 0) {
+		bss->eap_server_erp = atoi(pos);
 #endif /* EAP_SERVER */
 	} else if (os_strcmp(buf, "eap_message") == 0) {
 		char *term;
@@ -2063,6 +2073,11 @@
 				   (term - bss->eap_req_id_text) - 1);
 			bss->eap_req_id_text_len--;
 		}
+	} else if (os_strcmp(buf, "erp_send_reauth_start") == 0) {
+		bss->erp_send_reauth_start = atoi(pos);
+	} else if (os_strcmp(buf, "erp_domain") == 0) {
+		os_free(bss->erp_domain);
+		bss->erp_domain = os_strdup(pos);
 	} else if (os_strcmp(buf, "wep_key_len_broadcast") == 0) {
 		bss->default_wep_key_len = atoi(pos);
 		if (bss->default_wep_key_len > 13) {
@@ -2405,9 +2420,6 @@
 	} else if (os_strcmp(buf, "radius_server_ipv6") == 0) {
 		bss->radius_server_ipv6 = atoi(pos);
 #endif /* RADIUS_SERVER */
-	} else if (os_strcmp(buf, "test_socket") == 0) {
-		os_free(bss->test_socket);
-		bss->test_socket = os_strdup(pos);
 	} else if (os_strcmp(buf, "use_pae_group_addr") == 0) {
 		bss->use_pae_group_addr = atoi(pos);
 	} else if (os_strcmp(buf, "hw_mode") == 0) {
@@ -2486,6 +2498,15 @@
 				   line, bss->dtim_period);
 			return 1;
 		}
+	} else if (os_strcmp(buf, "bss_load_update_period") == 0) {
+		bss->bss_load_update_period = atoi(pos);
+		if (bss->bss_load_update_period < 0 ||
+		    bss->bss_load_update_period > 100) {
+			wpa_printf(MSG_ERROR,
+				   "Line %d: invalid bss_load_update_period %d",
+				   line, bss->bss_load_update_period);
+			return 1;
+		}
 	} else if (os_strcmp(buf, "rts_threshold") == 0) {
 		conf->rts_threshold = atoi(pos);
 		if (conf->rts_threshold < 0 || conf->rts_threshold > 2347) {
@@ -2996,6 +3017,8 @@
 		bss->hs20 = atoi(pos);
 	} else if (os_strcmp(buf, "disable_dgaf") == 0) {
 		bss->disable_dgaf = atoi(pos);
+	} else if (os_strcmp(buf, "proxy_arp") == 0) {
+		bss->proxy_arp = atoi(pos);
 	} else if (os_strcmp(buf, "osen") == 0) {
 		bss->osen = atoi(pos);
 	} else if (os_strcmp(buf, "anqp_domain_id") == 0) {
@@ -3106,6 +3129,8 @@
 		pos++;
 		WPA_PUT_LE16(&bss->bss_load_test[3], atoi(pos));
 		bss->bss_load_test_set = 1;
+	} else if (os_strcmp(buf, "radio_measurements") == 0) {
+		bss->radio_measurements = atoi(pos);
 #endif /* CONFIG_TESTING_OPTIONS */
 	} else if (os_strcmp(buf, "vendor_elements") == 0) {
 		struct wpabuf *elems;
diff --git a/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c
index 591c395..0e35aa6 100644
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -10,6 +10,11 @@
 
 #ifndef CONFIG_NATIVE_WINDOWS
 
+#ifdef CONFIG_TESTING_OPTIONS
+#include <net/ethernet.h>
+#include <netinet/ip.h>
+#endif /* CONFIG_TESTING_OPTIONS */
+
 #include <sys/un.h>
 #include <sys/stat.h>
 #include <stddef.h>
@@ -21,6 +26,7 @@
 #include "drivers/driver.h"
 #include "radius/radius_client.h"
 #include "radius/radius_server.h"
+#include "l2_packet/l2_packet.h"
 #include "ap/hostapd.h"
 #include "ap/ap_config.h"
 #include "ap/ieee802_1x.h"
@@ -240,14 +246,14 @@
 		if (!wps_pin_valid(pin_val)) {
 			wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit");
 			ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n");
-			if (ret < 0 || (size_t) ret >= buflen)
+			if (os_snprintf_error(buflen, ret))
 				return -1;
 			return ret;
 		}
 	}
 
 	ret = os_snprintf(buf, buflen, "%s", pin);
-	if (ret < 0 || (size_t) ret >= buflen)
+	if (os_snprintf_error(buflen, ret))
 		return -1;
 
 	return ret;
@@ -578,7 +584,7 @@
 	ret = os_snprintf(pos, end - pos, "PBC Status: %s\n",
 			  pbc_status_str(hapd->wps_stats.pbc_status));
 
-	if (ret < 0 || ret >= end - pos)
+	if (os_snprintf_error(end - pos, ret))
 		return pos - buf;
 	pos += ret;
 
@@ -588,7 +594,7 @@
 			   (hapd->wps_stats.status == WPS_STATUS_FAILURE ?
 			    "Failed" : "None")));
 
-	if (ret < 0 || ret >= end - pos)
+	if (os_snprintf_error(end - pos, ret))
 		return pos - buf;
 	pos += ret;
 
@@ -599,7 +605,7 @@
 				  "Failure Reason: %s\n",
 				  wps_ei_str(hapd->wps_stats.failure_reason));
 
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 	}
@@ -608,7 +614,7 @@
 		ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n",
 				  MAC2STR(hapd->wps_stats.peer_addr));
 
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 	}
@@ -857,6 +863,193 @@
 	return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer);
 }
 
+
+static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
+					 const char *cmd)
+{
+	u8 addr[ETH_ALEN];
+	const char *pos, *end;
+	int disassoc_timer = 0;
+	struct sta_info *sta;
+	u8 req_mode = 0, valid_int = 0x01;
+	u8 bss_term_dur[12];
+	char *url = NULL;
+	int ret;
+	u8 nei_rep[1000];
+	u8 *nei_pos = nei_rep;
+
+	if (hwaddr_aton(cmd, addr)) {
+		wpa_printf(MSG_DEBUG, "Invalid STA MAC address");
+		return -1;
+	}
+
+	sta = ap_get_sta(hapd, addr);
+	if (sta == NULL) {
+		wpa_printf(MSG_DEBUG, "Station " MACSTR
+			   " not found for BSS TM Request message",
+			   MAC2STR(addr));
+		return -1;
+	}
+
+	pos = os_strstr(cmd, " disassoc_timer=");
+	if (pos) {
+		pos += 16;
+		disassoc_timer = atoi(pos);
+		if (disassoc_timer < 0 || disassoc_timer > 65535) {
+			wpa_printf(MSG_DEBUG, "Invalid disassoc_timer");
+			return -1;
+		}
+	}
+
+	pos = os_strstr(cmd, " valid_int=");
+	if (pos) {
+		pos += 11;
+		valid_int = atoi(pos);
+	}
+
+	pos = os_strstr(cmd, " bss_term=");
+	if (pos) {
+		pos += 10;
+		req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED;
+		/* TODO: TSF configurable/learnable */
+		bss_term_dur[0] = 4; /* Subelement ID */
+		bss_term_dur[1] = 10; /* Length */
+		os_memset(bss_term_dur, 2, 8);
+		end = os_strchr(pos, ',');
+		if (end == NULL) {
+			wpa_printf(MSG_DEBUG, "Invalid bss_term data");
+			return -1;
+		}
+		end++;
+		WPA_PUT_LE16(&bss_term_dur[10], atoi(end));
+	}
+
+
+	/*
+	 * BSS Transition Candidate List Entries - Neighbor Report elements
+	 * neighbor=<BSSID>,<BSSID Information>,<Operating Class>,
+	 * <Channel Number>,<PHY Type>[,<hexdump of Optional Subelements>]
+	 */
+	pos = cmd;
+	while (pos) {
+		u8 *nei_start;
+		long int val;
+		char *endptr, *tmp;
+
+		pos = os_strstr(pos, " neighbor=");
+		if (!pos)
+			break;
+		if (nei_pos + 15 > nei_rep + sizeof(nei_rep)) {
+			wpa_printf(MSG_DEBUG,
+				   "Not enough room for additional neighbor");
+			return -1;
+		}
+		pos += 10;
+
+		nei_start = nei_pos;
+		*nei_pos++ = WLAN_EID_NEIGHBOR_REPORT;
+		nei_pos++; /* length to be filled in */
+
+		if (hwaddr_aton(pos, nei_pos)) {
+			wpa_printf(MSG_DEBUG, "Invalid BSSID");
+			return -1;
+		}
+		nei_pos += ETH_ALEN;
+		pos += 17;
+		if (*pos != ',') {
+			wpa_printf(MSG_DEBUG, "Missing BSSID Information");
+			return -1;
+		}
+		pos++;
+
+		val = strtol(pos, &endptr, 0);
+		WPA_PUT_LE32(nei_pos, val);
+		nei_pos += 4;
+		if (*endptr != ',') {
+			wpa_printf(MSG_DEBUG, "Missing Operating Class");
+			return -1;
+		}
+		pos = endptr + 1;
+
+		*nei_pos++ = atoi(pos); /* Operating Class */
+		pos = os_strchr(pos, ',');
+		if (pos == NULL) {
+			wpa_printf(MSG_DEBUG, "Missing Channel Number");
+			return -1;
+		}
+		pos++;
+
+		*nei_pos++ = atoi(pos); /* Channel Number */
+		pos = os_strchr(pos, ',');
+		if (pos == NULL) {
+			wpa_printf(MSG_DEBUG, "Missing PHY Type");
+			return -1;
+		}
+		pos++;
+
+		*nei_pos++ = atoi(pos); /* PHY Type */
+		end = os_strchr(pos, ' ');
+		tmp = os_strchr(pos, ',');
+		if (tmp && (!end || tmp < end)) {
+			/* Optional Subelements (hexdump) */
+			size_t len;
+
+			pos = tmp + 1;
+			end = os_strchr(pos, ' ');
+			if (end)
+				len = end - pos;
+			else
+				len = os_strlen(pos);
+			if (nei_pos + len / 2 > nei_rep + sizeof(nei_rep)) {
+				wpa_printf(MSG_DEBUG,
+					   "Not enough room for neighbor subelements");
+				return -1;
+			}
+			if (len & 0x01 ||
+			    hexstr2bin(pos, nei_pos, len / 2) < 0) {
+				wpa_printf(MSG_DEBUG,
+					   "Invalid neighbor subelement info");
+				return -1;
+			}
+			nei_pos += len / 2;
+			pos = end;
+		}
+
+		nei_start[1] = nei_pos - nei_start - 2;
+	}
+
+	pos = os_strstr(cmd, " url=");
+	if (pos) {
+		size_t len;
+		pos += 5;
+		end = os_strchr(pos, ' ');
+		if (end)
+			len = end - pos;
+		else
+			len = os_strlen(pos);
+		url = os_malloc(len + 1);
+		if (url == NULL)
+			return -1;
+		os_memcpy(url, pos, len);
+		url[len] = '\0';
+		req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT;
+	}
+
+	if (os_strstr(cmd, " pref=1"))
+		req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED;
+	if (os_strstr(cmd, " abridged=1"))
+		req_mode |= WNM_BSS_TM_REQ_ABRIDGED;
+	if (os_strstr(cmd, " disassoc_imminent=1"))
+		req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT;
+
+	ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer,
+				  valid_int, bss_term_dur, url,
+				  nei_pos > nei_rep ? nei_rep : NULL,
+				  nei_pos - nei_rep);
+	os_free(url);
+	return ret;
+}
+
 #endif /* CONFIG_WNM */
 
 
@@ -874,7 +1067,7 @@
 			  MAC2STR(hapd->own_addr),
 			  wpa_ssid_txt(hapd->conf->ssid.ssid,
 				       hapd->conf->ssid.ssid_len));
-	if (ret < 0 || ret >= end - pos)
+	if (os_snprintf_error(end - pos, ret))
 		return pos - buf;
 	pos += ret;
 
@@ -883,7 +1076,7 @@
 			  hapd->conf->wps_state == 0 ? "disabled" :
 			  (hapd->conf->wps_state == 1 ? "not configured" :
 			   "configured"));
-	if (ret < 0 || ret >= end - pos)
+	if (os_snprintf_error(end - pos, ret))
 		return pos - buf;
 	pos += ret;
 
@@ -891,7 +1084,7 @@
 	    hapd->conf->ssid.wpa_passphrase) {
 		ret = os_snprintf(pos, end - pos, "passphrase=%s\n",
 				  hapd->conf->ssid.wpa_passphrase);
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 	}
@@ -903,7 +1096,7 @@
 		wpa_snprintf_hex(hex, sizeof(hex),
 				 hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
 		ret = os_snprintf(pos, end - pos, "psk=%s\n", hex);
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 	}
@@ -911,39 +1104,39 @@
 
 	if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) {
 		ret = os_snprintf(pos, end - pos, "key_mgmt=");
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 
 		if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) {
 			ret = os_snprintf(pos, end - pos, "WPA-PSK ");
-			if (ret < 0 || ret >= end - pos)
+			if (os_snprintf_error(end - pos, ret))
 				return pos - buf;
 			pos += ret;
 		}
 		if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
 			ret = os_snprintf(pos, end - pos, "WPA-EAP ");
-			if (ret < 0 || ret >= end - pos)
+			if (os_snprintf_error(end - pos, ret))
 				return pos - buf;
 			pos += ret;
 		}
 #ifdef CONFIG_IEEE80211R
 		if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) {
 			ret = os_snprintf(pos, end - pos, "FT-PSK ");
-			if (ret < 0 || ret >= end - pos)
+			if (os_snprintf_error(end - pos, ret))
 				return pos - buf;
 			pos += ret;
 		}
 		if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
 			ret = os_snprintf(pos, end - pos, "FT-EAP ");
-			if (ret < 0 || ret >= end - pos)
+			if (os_snprintf_error(end - pos, ret))
 				return pos - buf;
 			pos += ret;
 		}
 #ifdef CONFIG_SAE
 		if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) {
 			ret = os_snprintf(pos, end - pos, "FT-SAE ");
-			if (ret < 0 || ret >= end - pos)
+			if (os_snprintf_error(end - pos, ret))
 				return pos - buf;
 			pos += ret;
 		}
@@ -952,13 +1145,13 @@
 #ifdef CONFIG_IEEE80211W
 		if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
 			ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 ");
-			if (ret < 0 || ret >= end - pos)
+			if (os_snprintf_error(end - pos, ret))
 				return pos - buf;
 			pos += ret;
 		}
 		if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
 			ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 ");
-			if (ret < 0 || ret >= end - pos)
+			if (os_snprintf_error(end - pos, ret))
 				return pos - buf;
 			pos += ret;
 		}
@@ -966,14 +1159,20 @@
 #ifdef CONFIG_SAE
 		if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) {
 			ret = os_snprintf(pos, end - pos, "SAE ");
-			if (ret < 0 || ret >= end - pos)
+			if (os_snprintf_error(end - pos, ret))
 				return pos - buf;
 			pos += ret;
 		}
 #endif /* CONFIG_SAE */
+		if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
+			ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B ");
+			if (os_snprintf_error(end - pos, ret))
+				return pos - buf;
+			pos += ret;
+		}
 
 		ret = os_snprintf(pos, end - pos, "\n");
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 	}
@@ -981,14 +1180,14 @@
 	if (hapd->conf->wpa) {
 		ret = os_snprintf(pos, end - pos, "group_cipher=%s\n",
 				  wpa_cipher_txt(hapd->conf->wpa_group));
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 	}
 
 	if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) {
 		ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher=");
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 
@@ -999,14 +1198,14 @@
 		pos += ret;
 
 		ret = os_snprintf(pos, end - pos, "\n");
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 	}
 
 	if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) {
 		ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher=");
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 
@@ -1017,7 +1216,7 @@
 		pos += ret;
 
 		ret = os_snprintf(pos, end - pos, "\n");
-		if (ret < 0 || ret >= end - pos)
+		if (os_snprintf_error(end - pos, ret))
 			return pos - buf;
 		pos += ret;
 	}
@@ -1074,6 +1273,8 @@
 #ifdef CONFIG_TESTING_OPTIONS
 	} else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) {
 		hapd->ext_mgmt_frame_handling = atoi(value);
+	} else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) {
+		hapd->ext_eapol_frame_io = atoi(value);
 #endif /* CONFIG_TESTING_OPTIONS */
 	} else {
 		struct sta_info *sta;
@@ -1122,7 +1323,7 @@
 
 	if (os_strcmp(cmd, "version") == 0) {
 		res = os_snprintf(buf, buflen, "%s", VERSION_STR);
-		if (res < 0 || (unsigned int) res >= buflen)
+		if (os_snprintf_error(buflen, res))
 			return -1;
 		return res;
 	}
@@ -1249,6 +1450,248 @@
 	return res;
 }
 
+
+static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd)
+{
+	char *pos;
+	u8 src[ETH_ALEN], *buf;
+	int used;
+	size_t len;
+
+	wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd);
+
+	pos = cmd;
+	used = hwaddr_aton2(pos, src);
+	if (used < 0)
+		return -1;
+	pos += used;
+	while (*pos == ' ')
+		pos++;
+
+	len = os_strlen(pos);
+	if (len & 1)
+		return -1;
+	len /= 2;
+
+	buf = os_malloc(len);
+	if (buf == NULL)
+		return -1;
+
+	if (hexstr2bin(pos, buf, len) < 0) {
+		os_free(buf);
+		return -1;
+	}
+
+	ieee802_1x_receive(hapd, src, buf, len);
+	os_free(buf);
+
+	return 0;
+}
+
+
+static u16 ipv4_hdr_checksum(const void *buf, size_t len)
+{
+	size_t i;
+	u32 sum = 0;
+	const u16 *pos = buf;
+
+	for (i = 0; i < len / 2; i++)
+		sum += *pos++;
+
+	while (sum >> 16)
+		sum = (sum & 0xffff) + (sum >> 16);
+
+	return sum ^ 0xffff;
+}
+
+
+#define HWSIM_PACKETLEN 1500
+#define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header))
+
+void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf,
+			  size_t len)
+{
+	struct hostapd_data *hapd = ctx;
+	const struct ether_header *eth;
+	const struct iphdr *ip;
+	const u8 *pos;
+	unsigned int i;
+
+	if (len != HWSIM_PACKETLEN)
+		return;
+
+	eth = (const struct ether_header *) buf;
+	ip = (const struct iphdr *) (eth + 1);
+	pos = (const u8 *) (ip + 1);
+
+	if (ip->ihl != 5 || ip->version != 4 ||
+	    ntohs(ip->tot_len) != HWSIM_IP_LEN)
+		return;
+
+	for (i = 0; i < HWSIM_IP_LEN - sizeof(*ip); i++) {
+		if (*pos != (u8) i)
+			return;
+		pos++;
+	}
+
+	wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR,
+		MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost));
+}
+
+
+static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd,
+					       char *cmd)
+{
+	int enabled = atoi(cmd);
+	char *pos;
+	const char *ifname;
+
+	if (!enabled) {
+		if (hapd->l2_test) {
+			l2_packet_deinit(hapd->l2_test);
+			hapd->l2_test = NULL;
+			wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
+				"test data: Disabled");
+		}
+		return 0;
+	}
+
+	if (hapd->l2_test)
+		return 0;
+
+	pos = os_strstr(cmd, " ifname=");
+	if (pos)
+		ifname = pos + 8;
+	else
+		ifname = hapd->conf->iface;
+
+	hapd->l2_test = l2_packet_init(ifname, hapd->own_addr,
+					ETHERTYPE_IP, hostapd_data_test_rx,
+					hapd, 1);
+	if (hapd->l2_test == NULL)
+		return -1;
+
+	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled");
+
+	return 0;
+}
+
+
+static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd)
+{
+	u8 dst[ETH_ALEN], src[ETH_ALEN];
+	char *pos;
+	int used;
+	long int val;
+	u8 tos;
+	u8 buf[HWSIM_PACKETLEN];
+	struct ether_header *eth;
+	struct iphdr *ip;
+	u8 *dpos;
+	unsigned int i;
+
+	if (hapd->l2_test == NULL)
+		return -1;
+
+	/* format: <dst> <src> <tos> */
+
+	pos = cmd;
+	used = hwaddr_aton2(pos, dst);
+	if (used < 0)
+		return -1;
+	pos += used;
+	while (*pos == ' ')
+		pos++;
+	used = hwaddr_aton2(pos, src);
+	if (used < 0)
+		return -1;
+	pos += used;
+
+	val = strtol(pos, NULL, 0);
+	if (val < 0 || val > 0xff)
+		return -1;
+	tos = val;
+
+	eth = (struct ether_header *) buf;
+	os_memcpy(eth->ether_dhost, dst, ETH_ALEN);
+	os_memcpy(eth->ether_shost, src, ETH_ALEN);
+	eth->ether_type = htons(ETHERTYPE_IP);
+	ip = (struct iphdr *) (eth + 1);
+	os_memset(ip, 0, sizeof(*ip));
+	ip->ihl = 5;
+	ip->version = 4;
+	ip->ttl = 64;
+	ip->tos = tos;
+	ip->tot_len = htons(HWSIM_IP_LEN);
+	ip->protocol = 1;
+	ip->saddr = htonl(192 << 24 | 168 << 16 | 1 << 8 | 1);
+	ip->daddr = htonl(192 << 24 | 168 << 16 | 1 << 8 | 2);
+	ip->check = ipv4_hdr_checksum(ip, sizeof(*ip));
+	dpos = (u8 *) (ip + 1);
+	for (i = 0; i < HWSIM_IP_LEN - sizeof(*ip); i++)
+		*dpos++ = i;
+
+	if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, buf,
+			   HWSIM_PACKETLEN) < 0)
+		return -1;
+
+	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR
+		" src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos);
+
+	return 0;
+}
+
+
+static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd,
+					      char *cmd)
+{
+	u8 *buf;
+	struct ether_header *eth;
+	struct l2_packet_data *l2 = NULL;
+	size_t len;
+	u16 ethertype;
+	int res = -1;
+	const char *ifname = hapd->conf->iface;
+
+	if (os_strncmp(cmd, "ifname=", 7) == 0) {
+		cmd += 7;
+		ifname = cmd;
+		cmd = os_strchr(cmd, ' ');
+		if (cmd == NULL)
+			return -1;
+		*cmd++ = '\0';
+	}
+
+	len = os_strlen(cmd);
+	if (len & 1 || len < ETH_HLEN * 2)
+		return -1;
+	len /= 2;
+
+	buf = os_malloc(len);
+	if (buf == NULL)
+		return -1;
+
+	if (hexstr2bin(cmd, buf, len) < 0)
+		goto done;
+
+	eth = (struct ether_header *) buf;
+	ethertype = ntohs(eth->ether_type);
+
+	l2 = l2_packet_init(ifname, hapd->own_addr, ethertype,
+			    hostapd_data_test_rx, hapd, 1);
+	if (l2 == NULL)
+		goto done;
+
+	res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len);
+	wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res);
+done:
+	if (l2)
+		l2_packet_deinit(l2);
+	os_free(buf);
+
+	return res < 0 ? -1 : 0;
+}
+
 #endif /* CONFIG_TESTING_OPTIONS */
 
 
@@ -1366,7 +1809,8 @@
 	res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
 		       (struct sockaddr *) &from, &fromlen);
 	if (res < 0) {
-		perror("recvfrom(ctrl_iface)");
+		wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
+			   strerror(errno));
 		return;
 	}
 	buf[res] = '\0';
@@ -1376,8 +1820,11 @@
 
 	reply = os_malloc(reply_size);
 	if (reply == NULL) {
-		sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
-		       fromlen);
+		if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
+			   fromlen) < 0) {
+			wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
+				   strerror(errno));
+		}
 		return;
 	}
 
@@ -1525,6 +1972,9 @@
 	} else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) {
 		if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13))
 			reply_len = -1;
+	} else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) {
+		if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11))
+			reply_len = -1;
 #endif /* CONFIG_WNM */
 	} else if (os_strcmp(buf, "GET_CONFIG") == 0) {
 		reply_len = hostapd_ctrl_iface_get_config(hapd, reply,
@@ -1551,6 +2001,18 @@
 	} else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) {
 		if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8))
 			reply_len = -1;
+	} else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) {
+		if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0)
+			reply_len = -1;
+	} else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) {
+		if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0)
+			reply_len = -1;
+	} else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) {
+		if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0)
+			reply_len = -1;
+	} else if (os_strncmp(buf, "DATA_TEST_FRAME ", 16) == 0) {
+		if (hostapd_ctrl_iface_data_test_frame(hapd, buf + 16) < 0)
+			reply_len = -1;
 #endif /* CONFIG_TESTING_OPTIONS */
 	} else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) {
 		if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12))
@@ -1558,7 +2020,11 @@
 	} else if (os_strncmp(buf, "VENDOR ", 7) == 0) {
 		reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply,
 						      reply_size);
-
+	} else if (os_strcmp(buf, "ERP_FLUSH") == 0) {
+		ieee802_1x_erp_flush(hapd);
+#ifdef RADIUS_SERVER
+		radius_server_erp_flush(hapd->radius_srv);
+#endif /* RADIUS_SERVER */
 	} else {
 		os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
 		reply_len = 16;
@@ -1568,7 +2034,11 @@
 		os_memcpy(reply, "FAIL\n", 5);
 		reply_len = 5;
 	}
-	sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from, fromlen);
+	if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
+		   fromlen) < 0) {
+		wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
+			   strerror(errno));
+	}
 	os_free(reply);
 }
 
@@ -1623,7 +2093,8 @@
 			wpa_printf(MSG_DEBUG, "Using existing control "
 				   "interface directory.");
 		} else {
-			perror("mkdir[ctrl_interface]");
+			wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
+				   strerror(errno));
 			goto fail;
 		}
 	}
@@ -1631,7 +2102,8 @@
 	if (hapd->conf->ctrl_interface_gid_set &&
 	    chown(hapd->conf->ctrl_interface, -1,
 		  hapd->conf->ctrl_interface_gid) < 0) {
-		perror("chown[ctrl_interface]");
+		wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
+			   strerror(errno));
 		return -1;
 	}
 
@@ -1639,7 +2111,8 @@
 	    hapd->iface->interfaces->ctrl_iface_group &&
 	    chown(hapd->conf->ctrl_interface, -1,
 		  hapd->iface->interfaces->ctrl_iface_group) < 0) {
-		perror("chown[ctrl_interface]");
+		wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
+			   strerror(errno));
 		return -1;
 	}
 
@@ -1664,7 +2137,7 @@
 
 	s = socket(PF_UNIX, SOCK_DGRAM, 0);
 	if (s < 0) {
-		perror("socket(PF_UNIX)");
+		wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
 		goto fail;
 	}
 
@@ -1685,15 +2158,16 @@
 				   " allow connections - assuming it was left"
 				   "over from forced program termination");
 			if (unlink(fname) < 0) {
-				perror("unlink[ctrl_iface]");
-				wpa_printf(MSG_ERROR, "Could not unlink "
-					   "existing ctrl_iface socket '%s'",
-					   fname);
+				wpa_printf(MSG_ERROR,
+					   "Could not unlink existing ctrl_iface socket '%s': %s",
+					   fname, strerror(errno));
 				goto fail;
 			}
 			if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
 			    0) {
-				perror("hostapd-ctrl-iface: bind(PF_UNIX)");
+				wpa_printf(MSG_ERROR,
+					   "hostapd-ctrl-iface: bind(PF_UNIX): %s",
+					   strerror(errno));
 				goto fail;
 			}
 			wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
@@ -1711,19 +2185,22 @@
 
 	if (hapd->conf->ctrl_interface_gid_set &&
 	    chown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) {
-		perror("chown[ctrl_interface/ifname]");
+		wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
+			   strerror(errno));
 		goto fail;
 	}
 
 	if (!hapd->conf->ctrl_interface_gid_set &&
 	    hapd->iface->interfaces->ctrl_iface_group &&
 	    chown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) {
-		perror("chown[ctrl_interface/ifname]");
+		wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
+			   strerror(errno));
 		goto fail;
 	}
 
 	if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
-		perror("chmod[ctrl_interface/ifname]");
+		wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
+			   strerror(errno));
 		goto fail;
 	}
 	os_free(fname);
@@ -1782,6 +2259,11 @@
 		dst = dst->next;
 		os_free(prev);
 	}
+
+#ifdef CONFIG_TESTING_OPTIONS
+	l2_packet_deinit(hapd->l2_test);
+	hapd->l2_test = NULL;
+#endif /* CONFIG_TESTING_OPTIONS */
 }
 
 
@@ -1831,7 +2313,8 @@
 	res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
 		       (struct sockaddr *) &from, &fromlen);
 	if (res < 0) {
-		perror("recvfrom(ctrl_iface)");
+		wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
+			   strerror(errno));
 		return;
 	}
 	buf[res] = '\0';
@@ -1871,7 +2354,11 @@
 		reply_len = 5;
 	}
 
-	sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from, fromlen);
+	if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
+		   fromlen) < 0) {
+		wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
+			   strerror(errno));
+	}
 }
 
 
@@ -1912,13 +2399,15 @@
 			wpa_printf(MSG_DEBUG, "Using existing control "
 				   "interface directory.");
 		} else {
-			perror("mkdir[ctrl_interface]");
+			wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
+				   strerror(errno));
 			goto fail;
 		}
 	} else if (interface->ctrl_iface_group &&
 		   chown(interface->global_iface_path, -1,
 			 interface->ctrl_iface_group) < 0) {
-		perror("chown[ctrl_interface]");
+		wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
+			   strerror(errno));
 		goto fail;
 	}
 
@@ -1928,7 +2417,7 @@
 
 	s = socket(PF_UNIX, SOCK_DGRAM, 0);
 	if (s < 0) {
-		perror("socket(PF_UNIX)");
+		wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
 		goto fail;
 	}
 
@@ -1949,15 +2438,15 @@
 				   " allow connections - assuming it was left"
 				   "over from forced program termination");
 			if (unlink(fname) < 0) {
-				perror("unlink[ctrl_iface]");
-				wpa_printf(MSG_ERROR, "Could not unlink "
-					   "existing ctrl_iface socket '%s'",
-					   fname);
+				wpa_printf(MSG_ERROR,
+					   "Could not unlink existing ctrl_iface socket '%s': %s",
+					   fname, strerror(errno));
 				goto fail;
 			}
 			if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
 			    0) {
-				perror("bind(PF_UNIX)");
+				wpa_printf(MSG_ERROR, "bind(PF_UNIX): %s",
+					   strerror(errno));
 				goto fail;
 			}
 			wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
@@ -1975,12 +2464,14 @@
 
 	if (interface->ctrl_iface_group &&
 	    chown(fname, -1, interface->ctrl_iface_group) < 0) {
-		perror("chown[ctrl_interface]");
+		wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
+			   strerror(errno));
 		goto fail;
 	}
 
 	if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
-		perror("chmod[ctrl_interface/ifname]");
+		wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
+			   strerror(errno));
 		goto fail;
 	}
 	os_free(fname);
diff --git a/hostapd/defconfig b/hostapd/defconfig
index 5b74b64..4cde2b5 100644
--- a/hostapd/defconfig
+++ b/hostapd/defconfig
@@ -15,10 +15,6 @@
 # Driver interface for wired authenticator
 #CONFIG_DRIVER_WIRED=y
 
-# Driver interface for madwifi driver
-#CONFIG_DRIVER_MADWIFI=y
-#CFLAGS += -I../../madwifi # change to the madwifi source directory
-
 # Driver interface for drivers using the nl80211 kernel interface
 CONFIG_DRIVER_NL80211=y
 
@@ -60,6 +56,9 @@
 # Integrated EAP server
 CONFIG_EAP=y
 
+# EAP Re-authentication Protocol (ERP) in integrated EAP server
+CONFIG_ERP=y
+
 # EAP-MD5 for the integrated EAP server
 CONFIG_EAP_MD5=y
 
@@ -142,7 +141,7 @@
 #CONFIG_IEEE80211R=y
 
 # Use the hostapd's IEEE 802.11 authentication (ACL), but without
-# the IEEE 802.11 Management capability (e.g., madwifi or FreeBSD/net80211)
+# the IEEE 802.11 Management capability (e.g., FreeBSD/net80211)
 #CONFIG_DRIVER_RADIUS_ACL=y
 
 # IEEE 802.11n (High Throughput) support
diff --git a/hostapd/hlr_auc_gw.c b/hostapd/hlr_auc_gw.c
index c041887..42d59db 100644
--- a/hostapd/hlr_auc_gw.c
+++ b/hostapd/hlr_auc_gw.c
@@ -711,7 +711,7 @@
 	rend = resp + resp_len;
 	rpos = resp;
 	ret = os_snprintf(rpos, rend - rpos, "GSM-AUTH-RESP %s", imsi);
-	if (ret < 0 || ret >= rend - rpos)
+	if (os_snprintf_error(rend - rpos, ret))
 		return -1;
 	rpos += ret;
 
@@ -737,7 +737,7 @@
 
 	printf("No GSM triplets found for %s\n", imsi);
 	ret = os_snprintf(rpos, rend - rpos, " FAILURE");
-	if (ret < 0 || ret >= rend - rpos)
+	if (os_snprintf_error(rend - rpos, ret))
 		return -1;
 	rpos += ret;
 
diff --git a/hostapd/hostapd.8 b/hostapd/hostapd.8
index b4456bb..d19d862 100644
--- a/hostapd/hostapd.8
+++ b/hostapd/hostapd.8
@@ -12,7 +12,7 @@
 .B hostapd
 is a user space daemon for access point and authentication servers.
 It implements IEEE 802.11 access point management, IEEE 802.1X/WPA/WPA2/EAP Authenticators and RADIUS authentication server.
-The current version supports Linux (Host AP, madwifi, mac80211-based drivers) and FreeBSD (net80211).
+The current version supports Linux (Host AP, mac80211-based drivers) and FreeBSD (net80211).
 
 .B hostapd
 is designed to be a "daemon" program that runs in the background and acts as the backend component controlling authentication.
diff --git a/hostapd/hostapd.conf b/hostapd/hostapd.conf
index a7ab0f6..2f6126c 100644
--- a/hostapd/hostapd.conf
+++ b/hostapd/hostapd.conf
@@ -2,10 +2,10 @@
 # Empty lines and lines starting with # are ignored
 
 # AP netdevice name (without 'ap' postfix, i.e., wlan0 uses wlan0ap for
-# management frames); ath0 for madwifi
+# management frames with the Host AP driver); wlan0 with many nl80211 drivers
 interface=wlan0
 
-# In case of madwifi, atheros, and nl80211 driver interfaces, an additional
+# In case of atheros and nl80211 driver interfaces, an additional
 # configuration parameter, bridge, may be used to notify hostapd if the
 # interface is included in a bridge. This parameter is not used with Host AP
 # driver. If the bridge parameter is not set, the drivers will automatically
@@ -18,12 +18,15 @@
 # interface is also created.
 #bridge=br0
 
-# Driver interface type (hostap/wired/madwifi/test/none/nl80211/bsd);
+# Driver interface type (hostap/wired/none/nl80211/bsd);
 # default: hostap). nl80211 is used with all Linux mac80211 drivers.
 # Use driver=none if building hostapd as a standalone RADIUS server that does
 # not control any wireless/wired driver.
 # driver=hostap
 
+# Driver interface parameters (mainly for development testing use)
+# driver_params=<params>
+
 # hostapd event logger configuration
 #
 # Two output method: syslog and stdout (only usable if not forking to
@@ -221,7 +224,7 @@
 # Station MAC address -based authentication
 # Please note that this kind of access control requires a driver that uses
 # hostapd to take care of management frame processing and as such, this can be
-# used with driver=hostap or driver=nl80211, but not with driver=madwifi.
+# used with driver=hostap or driver=nl80211, but not with driver=atheros.
 # 0 = accept unless in deny list
 # 1 = deny unless in accept list
 # 2 = use external RADIUS server (accept/deny lists are searched first)
@@ -435,6 +438,11 @@
 # associated stations in the BSS. By default, this bridging is allowed.
 #ap_isolate=1
 
+# BSS Load update period (in BUs)
+# This field is used to enable and configure adding a BSS Load element into
+# Beacon and Probe Response frames.
+#bss_load_update_period=50
+
 # Fixed BSS Load value for testing purposes
 # This field can be used to configure hostapd to add a fixed BSS Load element
 # into Beacon and Probe Response frames for testing purposes. The format is
@@ -688,6 +696,17 @@
 # is only used by one station.
 #use_pae_group_addr=1
 
+# EAP Re-authentication Protocol (ERP) authenticator (RFC 6696)
+#
+# Whether to initiate EAP authentication with EAP-Initiate/Re-auth-Start before
+# EAP-Identity/Request
+#erp_send_reauth_start=1
+#
+# Domain name for EAP-Initiate/Re-auth-Start. Omitted from the message if not
+# set (no local ER server). This is also used by the integrated EAP server if
+# ERP is enabled (eap_server_erp=1).
+#erp_domain=example.com
+
 ##### Integrated EAP server ###################################################
 
 # Optionally, hostapd can be configured to use an integrated EAP server
@@ -763,6 +782,15 @@
 # "openssl dhparam -out /etc/hostapd.dh.pem 1024"
 #dh_file=/etc/hostapd.dh.pem
 
+# OpenSSL cipher string
+#
+# This is an OpenSSL specific configuration option for configuring the default
+# ciphers. If not set, "DEFAULT:!EXP:!LOW" is used as the default.
+# See https://www.openssl.org/docs/apps/ciphers.html for OpenSSL documentation
+# on cipher suite configuration. This is applicable only if hostapd is built to
+# use OpenSSL.
+#openssl_ciphers=DEFAULT:!EXP:!LOW
+
 # Fragment size for EAP methods
 #fragment_size=1400
 
@@ -824,6 +852,10 @@
 # EAP method is enabled, the peer will be allowed to connect without TNC.
 #tnc=1
 
+# EAP Re-authentication Protocol (ERP) - RFC 6696
+#
+# Whether to enable ERP on the EAP server.
+#eap_server_erp=1
 
 ##### IEEE 802.11f - Inter-Access Point Protocol (IAPP) #######################
 
@@ -1439,6 +1471,11 @@
 # 1 = enabled
 #bss_transition=1
 
+# Proxy ARP
+# 0 = disabled (default)
+# 1 = enabled
+#proxy_arp=1
+
 ##### IEEE 802.11u-2011 #######################################################
 
 # Enable Interworking service
diff --git a/hostapd/hostapd_cli.c b/hostapd/hostapd_cli.c
index 9e62bef..7009184 100644
--- a/hostapd/hostapd_cli.c
+++ b/hostapd/hostapd_cli.c
@@ -393,7 +393,7 @@
 	else
 		res = os_snprintf(cmd, sizeof(cmd), "WPS_CHECK_PIN %s",
 				  argv[0]);
-	if (res < 0 || (size_t) res >= sizeof(cmd) - 1) {
+	if (os_snprintf_error(sizeof(cmd), res)) {
 		printf("Too long WPS_CHECK_PIN command.\n");
 		return -1;
 	}
@@ -456,7 +456,7 @@
 
 	res = os_snprintf(cmd, sizeof(cmd), "WPS_NFC_CONFIG_TOKEN %s",
 			  argv[0]);
-	if (res < 0 || (size_t) res >= sizeof(cmd) - 1) {
+	if (os_snprintf_error(sizeof(cmd), res)) {
 		printf("Too long WPS_NFC_CONFIG_TOKEN command.\n");
 		return -1;
 	}
@@ -477,7 +477,7 @@
 	}
 
 	res = os_snprintf(cmd, sizeof(cmd), "WPS_NFC_TOKEN %s", argv[0]);
-	if (res < 0 || (size_t) res >= sizeof(cmd) - 1) {
+	if (os_snprintf_error(sizeof(cmd), res)) {
 		printf("Too long WPS_NFC_TOKEN command.\n");
 		return -1;
 	}
@@ -499,7 +499,7 @@
 
 	res = os_snprintf(cmd, sizeof(cmd), "NFC_GET_HANDOVER_SEL %s %s",
 			  argv[0], argv[1]);
-	if (res < 0 || (size_t) res >= sizeof(cmd) - 1) {
+	if (os_snprintf_error(sizeof(cmd), res)) {
 		printf("Too long NFC_GET_HANDOVER_SEL command.\n");
 		return -1;
 	}
@@ -596,7 +596,7 @@
 
 	res = os_snprintf(buf, sizeof(buf), "DISASSOC_IMMINENT %s %s",
 			  argv[0], argv[1]);
-	if (res < 0 || res >= (int) sizeof(buf))
+	if (os_snprintf_error(sizeof(buf), res))
 		return -1;
 	return wpa_ctrl_command(ctrl, buf);
 }
@@ -616,12 +616,39 @@
 
 	res = os_snprintf(buf, sizeof(buf), "ESS_DISASSOC %s %s %s",
 			  argv[0], argv[1], argv[2]);
-	if (res < 0 || res >= (int) sizeof(buf))
+	if (os_snprintf_error(sizeof(buf), res))
 		return -1;
 	return wpa_ctrl_command(ctrl, buf);
 }
 
 
+static int hostapd_cli_cmd_bss_tm_req(struct wpa_ctrl *ctrl, int argc,
+				      char *argv[])
+{
+	char buf[2000], *tmp;
+	int res, i, total;
+
+	if (argc < 1) {
+		printf("Invalid 'bss_tm_req' command - at least one argument (STA addr) is needed\n");
+		return -1;
+	}
+
+	res = os_snprintf(buf, sizeof(buf), "BSS_TM_REQ %s", argv[0]);
+	if (os_snprintf_error(sizeof(buf), res))
+		return -1;
+
+	total = res;
+	for (i = 1; i < argc; i++) {
+		tmp = &buf[total];
+		res = os_snprintf(tmp, sizeof(buf) - total, " %s", argv[i]);
+		if (os_snprintf_error(sizeof(buf) - total, res))
+			return -1;
+		total += res;
+	}
+	return wpa_ctrl_command(ctrl, buf);
+}
+
+
 static int hostapd_cli_cmd_get_config(struct wpa_ctrl *ctrl, int argc,
 				      char *argv[])
 {
@@ -709,7 +736,7 @@
 	}
 
 	res = os_snprintf(buf, sizeof(buf), "SET_QOS_MAP_SET %s", argv[0]);
-	if (res < 0 || res >= (int) sizeof(buf))
+	if (os_snprintf_error(sizeof(buf), res))
 		return -1;
 	return wpa_ctrl_command(ctrl, buf);
 }
@@ -728,7 +755,7 @@
 	}
 
 	res = os_snprintf(buf, sizeof(buf), "SEND_QOS_MAP_CONF %s", argv[0]);
-	if (res < 0 || res >= (int) sizeof(buf))
+	if (os_snprintf_error(sizeof(buf), res))
 		return -1;
 	return wpa_ctrl_command(ctrl, buf);
 }
@@ -748,7 +775,7 @@
 
 	res = os_snprintf(buf, sizeof(buf), "HS20_WNM_NOTIF %s %s",
 			  argv[0], argv[1]);
-	if (res < 0 || res >= (int) sizeof(buf))
+	if (os_snprintf_error(sizeof(buf), res))
 		return -1;
 	return wpa_ctrl_command(ctrl, buf);
 }
@@ -773,7 +800,7 @@
 		res = os_snprintf(buf, sizeof(buf),
 				  "HS20_DEAUTH_REQ %s %s %s",
 				  argv[0], argv[1], argv[2]);
-	if (res < 0 || res >= (int) sizeof(buf))
+	if (os_snprintf_error(sizeof(buf), res))
 		return -1;
 	return wpa_ctrl_command(ctrl, buf);
 }
@@ -866,7 +893,7 @@
 	}
 
 	res = os_snprintf(cmd, sizeof(cmd), "SET %s %s", argv[0], argv[1]);
-	if (res < 0 || (size_t) res >= sizeof(cmd) - 1) {
+	if (os_snprintf_error(sizeof(cmd), res)) {
 		printf("Too long SET command.\n");
 		return -1;
 	}
@@ -886,7 +913,7 @@
 	}
 
 	res = os_snprintf(cmd, sizeof(cmd), "GET %s", argv[0]);
-	if (res < 0 || (size_t) res >= sizeof(cmd) - 1) {
+	if (os_snprintf_error(sizeof(cmd), res)) {
 		printf("Too long GET command.\n");
 		return -1;
 	}
@@ -914,7 +941,7 @@
 
 	res = os_snprintf(cmd, sizeof(cmd), "CHAN_SWITCH %s %s",
 			  argv[0], argv[1]);
-	if (res < 0 || (size_t) res >= sizeof(cmd) - 1) {
+	if (os_snprintf_error(sizeof(cmd), res)) {
 		printf("Too long CHAN_SWITCH command.\n");
 		return -1;
 	}
@@ -923,7 +950,7 @@
 	for (i = 2; i < argc; i++) {
 		tmp = cmd + total;
 		res = os_snprintf(tmp, sizeof(cmd) - total, " %s", argv[i]);
-		if (res < 0 || (size_t) res >= sizeof(cmd) - total - 1) {
+		if (os_snprintf_error(sizeof(cmd) - total, res)) {
 			printf("Too long CHAN_SWITCH command.\n");
 			return -1;
 		}
@@ -933,6 +960,27 @@
 }
 
 
+static int hostapd_cli_cmd_enable(struct wpa_ctrl *ctrl, int argc,
+				      char *argv[])
+{
+	return wpa_ctrl_command(ctrl, "ENABLE");
+}
+
+
+static int hostapd_cli_cmd_reload(struct wpa_ctrl *ctrl, int argc,
+				      char *argv[])
+{
+	return wpa_ctrl_command(ctrl, "RELOAD");
+}
+
+
+static int hostapd_cli_cmd_disable(struct wpa_ctrl *ctrl, int argc,
+				      char *argv[])
+{
+	return wpa_ctrl_command(ctrl, "DISABLE");
+}
+
+
 static int hostapd_cli_cmd_vendor(struct wpa_ctrl *ctrl, int argc, char *argv[])
 {
 	char cmd[256];
@@ -946,7 +994,7 @@
 
 	res = os_snprintf(cmd, sizeof(cmd), "VENDOR %s %s %s", argv[0], argv[1],
 			  argc == 3 ? argv[2] : "");
-	if (res < 0 || (size_t) res >= sizeof(cmd) - 1) {
+	if (os_snprintf_error(sizeof(cmd), res)) {
 		printf("Too long VENDOR command.\n");
 		return -1;
 	}
@@ -954,6 +1002,13 @@
 }
 
 
+static int hostapd_cli_cmd_erp_flush(struct wpa_ctrl *ctrl, int argc,
+				     char *argv[])
+{
+	return wpa_ctrl_command(ctrl, "ERP_FLUSH");
+}
+
+
 struct hostapd_cli_cmd {
 	const char *cmd;
 	int (*handler)(struct wpa_ctrl *ctrl, int argc, char *argv[]);
@@ -989,6 +1044,7 @@
 #endif /* CONFIG_WPS */
 	{ "disassoc_imminent", hostapd_cli_cmd_disassoc_imminent },
 	{ "ess_disassoc", hostapd_cli_cmd_ess_disassoc },
+	{ "bss_tm_req", hostapd_cli_cmd_bss_tm_req },
 	{ "get_config", hostapd_cli_cmd_get_config },
 	{ "help", hostapd_cli_cmd_help },
 	{ "interface", hostapd_cli_cmd_interface },
@@ -1003,6 +1059,10 @@
 	{ "hs20_wnm_notif", hostapd_cli_cmd_hs20_wnm_notif },
 	{ "hs20_deauth_req", hostapd_cli_cmd_hs20_deauth_req },
 	{ "vendor", hostapd_cli_cmd_vendor },
+	{ "enable", hostapd_cli_cmd_enable },
+	{ "reload", hostapd_cli_cmd_reload },
+	{ "disable", hostapd_cli_cmd_disable },
+	{ "erp_flush", hostapd_cli_cmd_erp_flush },
 	{ NULL, NULL }
 };
 
diff --git a/hostapd/main.c b/hostapd/main.c
index c3af704..3ecd009 100644
--- a/hostapd/main.c
+++ b/hostapd/main.c
@@ -28,8 +28,6 @@
 #include "eap_register.h"
 #include "ctrl_iface.h"
 
-struct wowlan_triggers *wpa_get_wowlan_triggers(const char *wowlan_triggers,
-						struct wpa_driver_capa *capa);
 
 struct hapd_global {
 	void **drv_priv;
@@ -186,9 +184,7 @@
 	}
 	params.bssid = b;
 	params.ifname = hapd->conf->iface;
-	params.ssid = hapd->conf->ssid.ssid;
-	params.ssid_len = hapd->conf->ssid.ssid_len;
-	params.test_socket = hapd->conf->test_socket;
+	params.driver_params = hapd->iconf->driver_params;
 	params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
 
 	params.num_bridge = hapd->iface->num_bss;
@@ -217,6 +213,7 @@
 		struct wowlan_triggers *triggs;
 
 		iface->drv_flags = capa.flags;
+		iface->smps_modes = capa.smps_modes;
 		iface->probe_resp_offloads = capa.probe_resp_offloads;
 		iface->extended_capa = capa.extended_capa;
 		iface->extended_capa_mask = capa.extended_capa_mask;
@@ -411,7 +408,7 @@
 #endif /* EAP_SERVER_TNC */
 
 	if (daemonize && os_daemonize(pid_file)) {
-		perror("daemon");
+		wpa_printf(MSG_ERROR, "daemon: %s", strerror(errno));
 		return -1;
 	}
 
@@ -641,6 +638,8 @@
 
 	if (log_file)
 		wpa_debug_open_file(log_file);
+	else
+		wpa_debug_setup_stdout();
 #ifdef CONFIG_DEBUG_LINUX_TRACING
 	if (enable_trace_dbg) {
 		int tret = wpa_debug_open_linux_tracing();