IEEE 802.11w: Added association ping

This updates management frame protection to use the assocition ping process
from the latest draft (D6.0) to protect against unauthenticated
authenticate or (re)associate frames dropping association.

hostapd/ChangeLog

@@ -10,6 +10,9 @@ ChangeLog for hostapd
 	* added support for setting VLAN ID for STAs based on local MAC ACL
 	  (accept_mac_file) as an alternative for RADIUS server-based
 	  configuration
+	* updated management frame protection to use IEEE 802.11w/D6.0
+	  (adds a new association ping to protect against unauthenticated
+	  authenticate or (re)associate request frames dropping association)
 
 2008-08-10 - v0.6.4
 	* added peer identity into EAP-FAST PAC-Opaque and skip Phase 2

hostapd/ap.h

@@ -93,6 +93,14 @@ struct sta_info {
 #ifdef CONFIG_IEEE80211N
 	struct ht_cap_ie ht_capabilities; /* IEEE 802.11n capabilities */
 #endif /* CONFIG_IEEE80211N */
+
+#ifdef CONFIG_IEEE80211W
+	int ping_count; /* number of pending ping requests;
+			 * 0 = no ping in progress */
+	int ping_timed_out;
+	u8 *ping_trans_id; /* buffer of WLAN_PING_TRANS_ID_LEN * ping_count
+			    * octets of pending ping transaction identifiers */
+#endif /* CONFIG_IEEE80211W */
 };
 
 

hostapd/config.c

@@ -1,6 +1,6 @@
 /*
  * hostapd / Configuration file
- * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
  * Copyright (c) 2007-2008, Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -181,6 +181,11 @@ static void hostapd_config_defaults_bss(struct hostapd_bss_config *bss)
 	bss->eapol_version = EAPOL_VERSION;
 
 	bss->max_listen_interval = 65535;
+
+#ifdef CONFIG_IEEE80211W
+	bss->assoc_ping_timeout = 1000;
+	bss->assoc_ping_attempts = 3;
+#endif /* CONFIG_IEEE80211W */
 }
 
 
@@ -1965,6 +1970,21 @@ struct hostapd_config * hostapd_config_read(const char *fname)
 #ifdef CONFIG_IEEE80211W
 		} else if (os_strcmp(buf, "ieee80211w") == 0) {
 			bss->ieee80211w = atoi(pos);
+		} else if (os_strcmp(buf, "assoc_ping_timeout") == 0) {
+			bss->assoc_ping_timeout = atoi(pos);
+			if (bss->assoc_ping_timeout == 0) {
+				printf("Line %d: invalid assoc_ping_timeout\n",
+					line);
+				errors++;
+			}
+		} else if (os_strcmp(buf, "assoc_ping_attempts") == 0) {
+			bss->assoc_ping_timeout = atoi(pos);
+			if (bss->assoc_ping_timeout == 0) {
+				printf("Line %d: invalid assoc_ping_attempts "
+				       "(valid range: 1..255)\n",
+				       line);
+				errors++;
+			}
 #endif /* CONFIG_IEEE80211W */
 #ifdef CONFIG_IEEE80211N
 		} else if (os_strcmp(buf, "ieee80211n") == 0) {

hostapd/config.h

@@ -213,6 +213,10 @@ struct hostapd_bss_config {
 		IEEE80211W_OPTIONAL = 1,
 		IEEE80211W_REQUIRED = 2
 	} ieee80211w;
+	/* dot11AssociationPingResponseTimeout (in TU) */
+	unsigned int assoc_ping_timeout;
+	/* dot11AssociationMaximumPingAttempts */
+	int assoc_ping_attempts;
 #endif /* CONFIG_IEEE80211W */
 	int wpa_pairwise;
 	int wpa_group;

hostapd/hostapd.conf

@@ -704,12 +704,21 @@ own_ip_addr=127.0.0.1
 # 1 = enabled
 #peerkey=1
 
-# ieee80211w: Whether management frame protection is enabled
+# ieee80211w: Whether management frame protection (MFP) is enabled
 # 0 = disabled (default)
 # 1 = optional
 # 2 = required
 #ieee80211w=0
 
+# Association ping timeout (in TU = 1.024 ms; for MFP)
+# dot11AssociationPingResponseTimeout, 1...4294967295
+#assoc_ping_timeout=1000
+
+# Maximum number of association pings
+# dot11AssociationMaximumPingAttempts , 1...255
+#assoc_ping_attempts=3
+
+
 # okc: Opportunistic Key Caching (aka Proactive Key Caching)
 # Allow PMK cache to be shared opportunistically among configured interfaces
 # and BSSes (i.e., all configurations within a single hostapd process).

hostapd/ieee802_11.c

@@ -371,6 +371,25 @@ static int ieee802_11_parse_vendor_specific(struct hostapd_data *hapd,
 }
 
 
+#ifdef CONFIG_IEEE80211W
+static u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd,
+					    struct sta_info *sta, u8 *eid)
+{
+	u8 *pos = eid;
+	u32 timeout;
+
+	*pos++ = WLAN_EID_ASSOC_COMEBACK_TIME;
+	*pos++ = 4;
+	timeout = (hapd->conf->assoc_ping_attempts - sta->ping_count + 1) *
+		hapd->conf->assoc_ping_timeout;
+	WPA_PUT_LE32(pos, timeout);
+	pos += 4;
+
+	return pos;
+}
+#endif /* CONFIG_IEEE80211W */
+
+
 ParseRes ieee802_11_parse_elems(struct hostapd_data *hapd, u8 *start,
 				size_t len,
 				struct ieee802_11_elems *elems,
@@ -514,12 +533,10 @@ void ieee802_11_print_ssid(char *buf, const u8 *ssid, u8 len)
 void ieee802_11_send_deauth(struct hostapd_data *hapd, u8 *addr, u16 reason)
 {
 	struct ieee80211_mgmt mgmt;
-	char buf[30];
 
 	hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
 		       HOSTAPD_LEVEL_DEBUG,
 		       "deauthenticate - reason %d", reason);
-	os_snprintf(buf, sizeof(buf), "SEND-DEAUTHENTICATE %d", reason);
 	os_memset(&mgmt, 0, sizeof(mgmt));
 	mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 					  WLAN_FC_STYPE_DEAUTH);
@@ -1160,6 +1177,21 @@ static void handle_assoc(struct hostapd_data *hapd,
 		if (resp != WLAN_STATUS_SUCCESS)
 			goto fail;
 #ifdef CONFIG_IEEE80211W
+		if ((sta->flags & WLAN_STA_MFP) && !sta->ping_timed_out) {
+			/*
+			 * STA has already been associated with MFP and ping
+			 * timeout has not been reached. Reject the
+			 * association attempt temporarily and start ping, if
+			 * one is not pending.
+			 */
+
+			if (sta->ping_count == 0)
+				ap_sta_start_ping(hapd, sta);
+
+			resp = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
+			goto fail;
+		}
+
 		if (wpa_auth_uses_mfp(sta->wpa_sm))
 			sta->flags |= WLAN_STA_MFP;
 		else
@@ -1352,6 +1384,11 @@ static void handle_assoc(struct hostapd_data *hapd,
 		}
 #endif /* CONFIG_IEEE80211R */
 
+#ifdef CONFIG_IEEE80211W
+		if (resp == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY)
+			p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
+#endif /* CONFIG_IEEE80211W */
+
 		send_len += p - reply->u.assoc_resp.variable;
 
 		/* Request TX callback */
@@ -1553,6 +1590,56 @@ static void handle_beacon(struct hostapd_data *hapd,
 }
 
 
+#ifdef CONFIG_IEEE80211W
+static void hostapd_ping_action(struct hostapd_data *hapd,
+				struct ieee80211_mgmt *mgmt, size_t len)
+{
+	struct sta_info *sta;
+	u8 *end;
+	int i;
+
+	end = mgmt->u.action.u.ping_resp.trans_id + WLAN_PING_TRANS_ID_LEN;
+	if (((u8 *) mgmt) + len < end) {
+		wpa_printf(MSG_DEBUG, "IEEE 802.11: Too short Ping Action "
+			   "frame (len=%lu)", (unsigned long) len);
+		return;
+	}
+
+	if (mgmt->u.action.u.ping_resp.action != WLAN_PING_RESPONSE) {
+		wpa_printf(MSG_DEBUG, "IEEE 802.11: Unexpected Ping Action %d",
+			   mgmt->u.action.u.ping_resp.action);
+		return;
+	}
+
+	/* MLME-PING.confirm */
+
+	sta = ap_get_sta(hapd, mgmt->sa);
+	if (sta == NULL || sta->ping_trans_id == NULL) {
+		wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching STA with "
+			   "pending ping request found");
+		return;
+	}
+
+	for (i = 0; i < sta->ping_count; i++) {
+		if (os_memcmp(sta->ping_trans_id + i * WLAN_PING_TRANS_ID_LEN,
+			      mgmt->u.action.u.ping_resp.trans_id,
+			      WLAN_PING_TRANS_ID_LEN) == 0)
+			break;
+	}
+
+	if (i >= sta->ping_count) {
+		wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching ping "
+			   "transaction identifier found");
+		return;
+	}
+
+	hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
+		       HOSTAPD_LEVEL_DEBUG, "Reply to pending ping received");
+	ap_sta_stop_ping(hapd, sta);
+}
+#endif /* CONFIG_IEEE80211W */
+
+
 static void handle_action(struct hostapd_data *hapd,
 			  struct ieee80211_mgmt *mgmt, size_t len)
 {
@@ -1588,6 +1675,11 @@ static void handle_action(struct hostapd_data *hapd,
 	case WME_ACTION_CATEGORY:
 		hostapd_wme_action(hapd, mgmt, len);
 		return;
+#ifdef CONFIG_IEEE80211W
+	case WLAN_ACTION_PING:
+		hostapd_ping_action(hapd, mgmt, len);
+		return;
+#endif /* CONFIG_IEEE80211W */
 	}
 
 	hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
@@ -1811,6 +1903,10 @@ static void handle_assoc_cb(struct hostapd_data *hapd,
 		ht_cap = &sta->ht_capabilities;
 #endif /* CONFIG_IEEE80211N */
 
+#ifdef CONFIG_IEEE80211W
+	sta->ping_timed_out = 0;
+#endif /* CONFIG_IEEE80211W */
+
 	if (hostapd_sta_add(hapd->conf->iface, hapd, sta->addr, sta->aid,
 			    sta->capability, sta->supported_rates,
 			    sta->supported_rates_len, 0, sta->listen_interval,
@@ -1881,6 +1977,9 @@ void ieee802_11_mgmt_cb(struct hostapd_data *hapd, u8 *buf, size_t len,
 	case WLAN_FC_STYPE_DEAUTH:
 		/* ignore */
 		break;
+	case WLAN_FC_STYPE_ACTION:
+		wpa_printf(MSG_DEBUG, "mgmt::action cb");
+		break;
 	default:
 		printf("unknown mgmt cb frame subtype %d\n", stype);
 		break;

hostapd/mlme.c

@@ -58,7 +58,7 @@ void mlme_authenticate_indication(struct hostapd_data *hapd,
 		       HOSTAPD_LEVEL_DEBUG,
 		       "MLME-AUTHENTICATE.indication(" MACSTR ", %s)",
 		       MAC2STR(sta->addr), mlme_auth_alg_str(sta->auth_alg));
-	if (sta->auth_alg != WLAN_AUTH_FT)
+	if (sta->auth_alg != WLAN_AUTH_FT && !(sta->flags & WLAN_STA_MFP))
 		mlme_deletekeys_request(hapd, sta);
 }
 

hostapd/sta_info.c

@@ -1,6 +1,6 @@
 /*
  * hostapd / Station table
- * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
  * Copyright (c) 2007-2008, Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
@@ -34,6 +34,9 @@
 static int ap_sta_in_other_bss(struct hostapd_data *hapd,
 			       struct sta_info *sta, u32 flags);
 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
+#ifdef CONFIG_IEEE80211W
+static void ap_ping_timer(void *eloop_ctx, void *timeout_ctx);
+#endif /* CONFIG_IEEE80211W */
 
 int ap_for_each_sta(struct hostapd_data *hapd,
 		    int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
@@ -179,6 +182,12 @@ void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
 
 	os_free(sta->last_assoc_req);
 	os_free(sta->challenge);
+
+#ifdef CONFIG_IEEE80211W
+	os_free(sta->ping_trans_id);
+	eloop_cancel_timeout(ap_ping_timer, hapd, sta);
+#endif /* CONFIG_IEEE80211W */
+
 	os_free(sta);
 }
 
@@ -594,3 +603,87 @@ int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 
 	return hostapd_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
 }
+
+
+#ifdef CONFIG_IEEE80211W
+
+/* MLME-PING.request */
+static void ieee802_11_send_ping_req(struct hostapd_data *hapd, const u8 *addr,
+				     const u8 *trans_id)
+{
+	struct ieee80211_mgmt mgmt;
+	u8 *end;
+
+	os_memset(&mgmt, 0, sizeof(mgmt));
+	mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+					  WLAN_FC_STYPE_ACTION);
+	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.action.category = WLAN_ACTION_PING;
+	mgmt.u.action.u.ping_req.action = WLAN_PING_REQUEST;
+	os_memcpy(mgmt.u.action.u.ping_req.trans_id, trans_id,
+		  WLAN_PING_TRANS_ID_LEN);
+	end = mgmt.u.action.u.ping_req.trans_id + WLAN_PING_TRANS_ID_LEN;
+	if (hostapd_send_mgmt_frame(hapd, &mgmt, IEEE80211_HDRLEN +
+				    end - (u8 *) &mgmt, 0) < 0)
+		perror("ieee802_11_send_ping_req: send");
+}
+
+
+static void ap_ping_timer(void *eloop_ctx, void *timeout_ctx)
+{
+	struct hostapd_data *hapd = eloop_ctx;
+	struct sta_info *sta = timeout_ctx;
+	unsigned int timeout, sec, usec;
+	u8 *trans_id, *nbuf;
+
+	if (sta->ping_count >= hapd->conf->assoc_ping_attempts) {
+		hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
+			       HOSTAPD_LEVEL_DEBUG,
+			       "association ping timed out");
+		sta->ping_timed_out = 1;
+		os_free(sta->ping_trans_id);
+		sta->ping_trans_id = NULL;
+		sta->ping_count = 0;
+		return;
+	}
+
+	nbuf = os_realloc(sta->ping_trans_id,
+			  (sta->ping_count + 1) * WLAN_PING_TRANS_ID_LEN);
+	if (nbuf == NULL)
+		return;
+	trans_id = nbuf + sta->ping_count * WLAN_PING_TRANS_ID_LEN;
+	sta->ping_trans_id = nbuf;
+	sta->ping_count++;
+
+	os_get_random(trans_id, WLAN_PING_TRANS_ID_LEN);
+
+	hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
+		       HOSTAPD_LEVEL_DEBUG,
+		       "association ping attempt %d", sta->ping_count);
+
+	ieee802_11_send_ping_req(hapd, sta->addr, trans_id);
+
+	timeout = hapd->conf->assoc_ping_timeout;
+	sec = ((timeout / 1000) * 1024) / 1000;
+	usec = (timeout % 1000) * 1024;
+	eloop_register_timeout(sec, usec, ap_ping_timer, hapd, sta);
+}
+
+
+void ap_sta_start_ping(struct hostapd_data *hapd, struct sta_info *sta)
+{
+	ap_ping_timer(hapd, sta);
+}
+
+
+void ap_sta_stop_ping(struct hostapd_data *hapd, struct sta_info *sta)
+{
+	eloop_cancel_timeout(ap_ping_timer, hapd, sta);
+	os_free(sta->ping_trans_id);
+	sta->ping_trans_id = NULL;
+	sta->ping_count = 0;
+}
+
+#endif /* CONFIG_IEEE80211W */

hostapd/sta_info.h

@@ -36,5 +36,7 @@ void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 			   u16 reason);
 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 		     int old_vlanid);
+void ap_sta_start_ping(struct hostapd_data *hapd, struct sta_info *sta);
+void ap_sta_stop_ping(struct hostapd_data *hapd, struct sta_info *sta);
 
 #endif /* STA_INFO_H */

hostapd/wpa.c

@@ -1081,6 +1081,8 @@ void wpa_remove_ptk(struct wpa_state_machine *sm)
 
 void wpa_auth_sm_event(struct wpa_state_machine *sm, wpa_event event)
 {
+	int remove_ptk = 1;
+
 	if (sm == NULL)
 		return;
 
@@ -1113,11 +1115,18 @@ void wpa_auth_sm_event(struct wpa_state_machine *sm, wpa_event event)
 	sm->ft_completed = 0;
 #endif /* CONFIG_IEEE80211R */
 
-	sm->PTK_valid = FALSE;
-	os_memset(&sm->PTK, 0, sizeof(sm->PTK));
+#ifdef CONFIG_IEEE80211W
+	if (sm->mgmt_frame_prot && event == WPA_AUTH)
+		remove_ptk = 0;
+#endif /* CONFIG_IEEE80211W */
+
+	if (remove_ptk) {
+		sm->PTK_valid = FALSE;
+		os_memset(&sm->PTK, 0, sizeof(sm->PTK));
 
-	if (event != WPA_REAUTH_EAPOL)
-		wpa_remove_ptk(sm);
+		if (event != WPA_REAUTH_EAPOL)
+			wpa_remove_ptk(sm);
+	}
 
 	wpa_sm_step(sm);
 }

src/common/ieee802_11_defs.h

@@ -218,6 +218,12 @@
 #define WLAN_ACTION_FT 6
 #define WLAN_ACTION_PING 8
 
+/* Ping Action frame (IEEE 802.11w/D6.0, 7.4.9) */
+#define WLAN_PING_REQUEST 0
+#define WLAN_PING_RESPONSE 1
+
+#define WLAN_PING_TRANS_ID_LEN 16
+
 
 #ifdef _MSC_VER
 #pragma pack(push, 1)
@@ -316,11 +322,11 @@ struct ieee80211_mgmt {
 				} STRUCT_PACKED ft_action_resp;
 				struct {
 					u8 action;
-					u8 transaction_id[16];
+					u8 trans_id[WLAN_PING_TRANS_ID_LEN];
 				} STRUCT_PACKED ping_req;
 				struct {
-					u8 action;
-					u8 transaction_id[16];
+					u8 action; /* */
+					u8 trans_id[WLAN_PING_TRANS_ID_LEN];
 				} STRUCT_PACKED ping_resp;
 			} u;
 		} STRUCT_PACKED action;

wpa_supplicant/ChangeLog

@@ -3,6 +3,7 @@ ChangeLog for wpa_supplicant
 ????-??-?? - v0.6.5
 	* added support for SHA-256 as X.509 certificate digest when using the
 	  internal X.509/TLSv1 implementation
+	* updated management frame protection to use IEEE 802.11w/D6.0
 
 2008-08-10 - v0.6.4
 	* added support for EAP Sequences in EAP-FAST Phase 2

wpa_supplicant/mlme.c

@@ -1814,6 +1814,7 @@ static void ieee80211_rx_mgmt_probe_req(struct wpa_supplicant *wpa_s,
 }
 
 
+#ifdef CONFIG_IEEE80211R
 static void ieee80211_rx_mgmt_ft_action(struct wpa_supplicant *wpa_s,
 					struct ieee80211_mgmt *mgmt,
 					size_t len,
@@ -1873,6 +1874,78 @@ static void ieee80211_rx_mgmt_ft_action(struct wpa_supplicant *wpa_s,
 	os_memcpy(wpa_s->bssid, target_ap_addr, ETH_ALEN);
 	ieee80211_associate(wpa_s);
 }
+#endif /* CONFIG_IEEE80211R */
+
+
+#ifdef CONFIG_IEEE80211W
+
+/* MLME-PING.response */
+static int ieee80211_sta_send_ping_resp(struct wpa_supplicant *wpa_s,
+					const u8 *addr, const u8 *trans_id)
+{
+	struct ieee80211_mgmt *mgmt;
+	int res;
+	size_t len;
+
+	mgmt = os_zalloc(sizeof(*mgmt));
+	if (mgmt == NULL) {
+		wpa_printf(MSG_DEBUG, "MLME: Failed to allocate buffer for "
+			   "ping action frame");
+		return -1;
+	}
+
+	len = 24;
+	os_memcpy(mgmt->da, addr, ETH_ALEN);
+	os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
+	os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
+	mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+					   WLAN_FC_STYPE_ACTION);
+	mgmt->u.action.category = WLAN_ACTION_PING;
+	mgmt->u.action.u.ping_resp.action = WLAN_PING_RESPONSE;
+	os_memcpy(mgmt->u.action.u.ping_resp.trans_id, trans_id,
+		  WLAN_PING_TRANS_ID_LEN);
+	len += 1 + sizeof(mgmt->u.action.u.ping_resp);
+
+	res = ieee80211_sta_tx(wpa_s, (u8 *) mgmt, len);
+	os_free(mgmt);
+
+	return res;
+}
+
+
+static void ieee80211_rx_mgmt_ping_action(
+	struct wpa_supplicant *wpa_s, struct ieee80211_mgmt *mgmt, size_t len,
+	struct ieee80211_rx_status *rx_status)
+{
+	if (len < 24 + 1 + sizeof(mgmt->u.action.u.ping_req)) {
+		wpa_printf(MSG_DEBUG, "MLME: Too short Ping Action frame");
+		return;
+	}
+
+	if (mgmt->u.action.u.ping_req.action != WLAN_PING_REQUEST) {
+		wpa_printf(MSG_DEBUG, "MLME: Unexpected Ping Action %d",
+			   mgmt->u.action.u.ping_req.action);
+		return;
+	}
+
+	if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) != 0) {
+		wpa_printf(MSG_DEBUG, "MLME: Ignore ping from unknown source "
+			   MACSTR, MAC2STR(mgmt->sa));
+		return;
+	}
+
+	if (wpa_s->mlme.state == IEEE80211_ASSOCIATE) {
+		wpa_printf(MSG_DEBUG, "MLME: Ignore ping request during "
+			   "association process");
+		return;
+	}
+
+	wpa_printf(MSG_DEBUG, "MLME: Replying to ping request");
+	ieee80211_sta_send_ping_resp(wpa_s, mgmt->sa,
+				     mgmt->u.action.u.ping_req.trans_id);
+}
+
+#endif /* CONFIG_IEEE80211W */
 
 
 static void ieee80211_rx_mgmt_action(struct wpa_supplicant *wpa_s,
@@ -1885,11 +1958,22 @@ static void ieee80211_rx_mgmt_action(struct wpa_supplicant *wpa_s,
 	if (len < 25)
 		return;
 
-	if (mgmt->u.action.category == WLAN_ACTION_FT)
+	switch (mgmt->u.action.category) {
+#ifdef CONFIG_IEEE80211R
+	case WLAN_ACTION_FT:
 		ieee80211_rx_mgmt_ft_action(wpa_s, mgmt, len, rx_status);
-	else
+		break;
+#endif /* CONFIG_IEEE80211R */
+	case WLAN_ACTION_PING:
+		ieee80211_rx_mgmt_ping_action(wpa_s, mgmt, len, rx_status);
+		break;
+#ifdef CONFIG_IEEE80211W
+#endif /* CONFIG_IEEE80211W */
+	default:
 		wpa_printf(MSG_DEBUG, "MLME: unknown Action Category %d",
 			   mgmt->u.action.category);
+		break;
+	}
 }