Cumulative patch from commit 5e32f8256f5fcce8b70a95e070375ac549ac935a

5e32f82 tests: Verify HS 2.0R2 deauthentication request
b61e70c HS 2.0R2: Add WFA server-only EAP-TLS server method
8d2a992 HS 2.0R2: RADIUS server support to request Subscr Remediation
ae6d15c HS 2.0R2 AP: Add OSU Providers list ANQP element
f7bd7a0 HS 2.0R2 AP: Add Icon Request and Icon binary File ANQP elements
97596f8 HS 2.0R2 AP: Add support for Session Info URL RADIUS AVP
8e1146d HS 2.0R2 AP: Add support for deauthentication request
a14896e HS 2.0R2 AP: Add OSEN implementation
6ca0853 HS 2.0R2 AP: Use Subscr Remediation request from RADIUS server
7bc9c25 HS 2.0R2 AP: Add STA's Hotspot 2.0 Release Number into Access-Request
76579ec HS 2.0R2 AP: Add AP Hotspot 2.0 Release Number as WFA RADIUS VSA
0dd100f HS 2.0R2 AP: Add definition and helper function for WFA RADIUS VSA
3fb17a9 HS 2.0R2 AP: Add WNM-Notification Request for Subscription Remediation
d5d2478 HS 2.0R2 AP: Update HS 2.0 Indication element to Release 2
a6739e1 HS 2.0R2: Try to scan multiple times for OSU providers
cf6d08a Interworking: Add OCSP parameter to the cred block
6402f2f Interworking: Add more debug info on roaming partner preferences
7479489 Interworking: Add sp_priority cred parameter
751ac99 Interworking: Use a helper function to compare cred priority
aff419f Interworking: Remove separate credential priority tracking
533536d HS 2.0R2: Disable full ESS for as a workaround for per-BSS issues
8a77f1b HS 2.0R2: Slow down connection attempts on EAP failures
76a55a8 HS 2.0R2: Add more debug to network selection
8b4b9fb HS 2.0R2: Fix bandwidth policy BSS selection
28f2a7c HS 2.0R2: Allow excluded network to be selected based on user override
33fb8c5 HS 2.0R2: Add support for Policy/RequiredProtoPortTuple
a45b2dc HS 2.0R2: Add support for Policy/MaximumBSSLoadValue
4cad9df HS 2.0R2: Add support for Policy/MinBackhaulThreshold
aa26ba6 HS 2.0R2: Add tracking of provisioning SP
8e5fdfa HS 2.0R2: Add WFA server-only EAP-TLS peer method
df0f01d HS 2.0R2: Add OSEN client implementation
a5d7563 HS 2.0R2: Add common OSEN definitions
230e373 HS 2.0R2: Add GAS operation duration statistics into debug
b572df8 HS 2.0R2: Add routine for fetching OSU provider information
1d2215f HS 2.0R2: Add OSU Providers list ANQP element
184e110 HS 2.0R2: Add Icon Request and Icon binary File ANQP elements
7ef6947 HS 2.0R2: Add STA support for Deauthentication Request notification
95a3ea9 HS 2.0R2: Add WNM-Notification Request for Subscription Remediation
f9cd147 HS 2.0R2: Update Indication element to Release 2
bc00053 Interworking: Allow roaming partner configuration
ae6f927 nl80211: Add driver capability for GTK_NOT_USED
2c49d04 Do not clear global pmf setting on FLUSH
eef7235 Only try fast reconnect if network is not disabled
3d910ef Interworking: Prefer last added network during network selection
2a33687 P2P: Remove unnecessary ifdef CONFIG_NO_CONFIG_WRITE
050d8b5 Fix documentation for wpa_supplicant_global_ctrl_iface_process()
8c9cb81 DFS: Fix coding style (missing whitespace)
4f1e01b DFS: Add VHT160 available channels
b8058a6 hostapd: DFS allow mixed channels
4db216f wpa_supplicant: Add support for IPv6 with UDP ctrl_iface
e2364d1 hostapd: Deauthenticate clients forbidden by maclist changes
1748f1d hostapd: Make it possible to remove addresses from maclists
064eb05 Add os_remove_in_array()
c1151e4 Force OFDM/HT/VHT to be disabled on channel 14
bfb79dd nl80211: Show regulatory rule flags in debug output
3d7ad2f hostapd: Configure spectrum management capability
e0392f8 hostapd: Add Power Constraint element
891330f Fix spelling s/algorith/algorithm/
f0e30c8 Do not start another connect work while one is pending
3290398 WPS: Fix UNSUBSCRIBE error returns if NT or CALLBACK header is used
f34df28 WPS: Fix UNSUBSCRIBE to return 412 if no SID match found
80f256a WPS: Remove unnecessary filename NULL check

Change-Id: I7dc25a8bb0074f4970ade8d42dfa60da166baf96
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/ap/sta_info.c b/src/ap/sta_info.c
index 24e764d..f7af088 100644
--- a/src/ap/sta_info.c
+++ b/src/ap/sta_info.c
@@ -30,11 +30,13 @@
 #include "p2p_hostapd.h"
 #include "ap_drv_ops.h"
 #include "gas_serv.h"
+#include "wnm_ap.h"
 #include "sta_info.h"
 
 static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
 				       struct sta_info *sta);
 static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
+static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx);
 static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx);
 static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx);
 #ifdef CONFIG_IEEE80211W
@@ -224,6 +226,7 @@
 		   __func__, MAC2STR(sta->addr));
 	eloop_cancel_timeout(ap_handle_timer, hapd, sta);
 	eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
+	eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
 	eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
 	eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
 
@@ -265,6 +268,9 @@
 	hostapd_free_psk_list(sta->psk);
 	os_free(sta->identity);
 	os_free(sta->radius_cui);
+	os_free(sta->remediation_url);
+	wpabuf_free(sta->hs20_deauth_req);
+	os_free(sta->hs20_session_info_url);
 
 #ifdef CONFIG_SAE
 	sae_clear_data(sta->sae);
@@ -520,6 +526,32 @@
 }
 
 
+static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
+{
+#ifdef CONFIG_WNM
+	struct hostapd_data *hapd = eloop_ctx;
+	struct sta_info *sta = timeout_ctx;
+
+	wpa_printf(MSG_DEBUG, "WNM: Session warning time reached for " MACSTR,
+		   MAC2STR(sta->addr));
+	if (sta->hs20_session_info_url == NULL)
+		return;
+
+	wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
+				       sta->hs20_disassoc_timer);
+#endif /* CONFIG_WNM */
+}
+
+
+void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
+				    struct sta_info *sta, int warning_time)
+{
+	eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
+	eloop_register_timeout(warning_time, 0, ap_handle_session_warning_timer,
+			       hapd, sta);
+}
+
+
 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
 {
 	struct sta_info *sta;