Accumulative patch from commit b618a469c42120e984ab1c85ed6058504d1fca78

  Author: Jouni Malinen <jouni@qca.qualcomm.com>
  Date:   Sat Feb 16 19:54:09 2013 +0200
    Interworking: Select highest priority cred if multiple matches

Interworking: Select highest priority cred if multiple matches
GAS server: Fix a regression in GAS server callback
hostapd: Fix Max SP Length derivation from QoS Info
nl80211: Configure STA Capabilities and Extended Capabilities
Synchronize with wireless-testing.git include/uapi/linux/nl80211.h
WPS: Fix build without CONFIG_WPS_NFC
WPS: Add support for NFC handover select generation with wpa_supplicant
WPS: Update NFC connection handover documentation
WPS: Add support for config token generation with wpa_supplicant
WPS: Allow password token to be written with nfcpy
WPS: Use pre-configured NFC password token instead of overriding it
TDLS: Pass peer's Capability and Ext Capability info during sta_add
TDLS: Pass peer's HT Capability and QOS information during sta_add
nl80211: Add debug prints for STA add/set operations
TDLS: Fix add/set STA operation
Synchronize with wireless-testing.git include/uapi/linux/nl80211.h
WPS: Allow Device Password to be changed from M1 to M2
WPS: Fix wps_reg nfc-pw option
TDLS: Tear down peers when disconnecting from the AP
P2P: Do not use old scan result data for peer discovery
Use more accurate timestamps for scan results
P2P: Postpone P2P-DEVICE-FOUND if config_methods not known
P2P: Do not allow peer update to clear config_methods
WPS: Report NFC connection handover completion differently
P2P: Avoid concurrent scans during all steps of group formation
P2P: Cancel group formation timeout on group removal (on client)
WPS: Change listen time to match nfcpy default (250 ms)
WPS: Report only the carrier record from NFC to wpa_supplicant
WPS: Fetch only the carrier record from wpa_supplicant for NFC
WPS: Update nfcpy script to support AP mode NFC connection handover
WPS: Add command for fetching carrier record for NFC handover
WPS: Clean up debug prints with nfcpy
WPS: Remove 0.5 sec extra wait from NFC handover with nfcpy
WPS: Use alternating poll/listen for NFC peer discovery with nfcpy
WPS: Configure logging to show nfcpy log message
WPS: Add an example python script for NFC operations with hostapd
hostapd: Do not change HT40 capability due to OBSS scan
dbus: Add missing signal description for WPS (7)
EAP peer: Add Session-Id derivation to more EAP methods
EAP peer: Add Session-Id derivation
EAP-IKEV2 server: Fix invalid memory freeing operation
eap_proxy: Add a dummy implementation for compilation testing
eap_proxy: Add mechanism for allowing EAP methods to be offloaded
Android: Allow setgroups to be overridden from build configuration
P2P: Send p2p_stop_find event on failure to start pending p2p_find
P2P: Fix GO Probe Response IEs when Wi-Fi Display is enabled
Capability matching for 60 GHz band
nl80211: Add ctrl_iface message for AP mode connection rejection
P2P: Allow local configuration to use 5 GHz band 40 MHz channels
Fix BSS RANGE command for no exact id match cases

Change-Id: Iac9284bba31db40911aecc3adf2843c9b1576db1
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/wps/ndef.c b/src/wps/ndef.c
index a48a2d7..96685d2 100644
--- a/src/wps/ndef.c
+++ b/src/wps/ndef.c
@@ -170,10 +170,30 @@
 }
 
 
+struct wpabuf * ndef_build_wifi_hc(int begin)
+{
+	struct wpabuf *hc, *carrier;
+
+	carrier = wpabuf_alloc(2 + os_strlen(wifi_handover_type));
+	if (carrier == NULL)
+		return NULL;
+	wpabuf_put_u8(carrier, 0x02); /* Carrier Type Format */
+	wpabuf_put_u8(carrier, os_strlen(wifi_handover_type));
+	wpabuf_put_str(carrier, wifi_handover_type);
+
+	hc = ndef_build_record((begin ? FLAG_MESSAGE_BEGIN : 0) |
+			       FLAG_MESSAGE_END | FLAG_TNF_NFC_FORUM, "Hc", 2,
+			       "0", 1, carrier);
+	wpabuf_free(carrier);
+
+	return hc;
+}
+
+
 struct wpabuf * ndef_build_wifi_hr(void)
 {
 	struct wpabuf *rn, *cr, *ac_payload, *ac, *hr_payload, *hr;
-	struct wpabuf *carrier, *hc;
+	struct wpabuf *hc;
 
 	rn = wpabuf_alloc(2);
 	if (rn == NULL)
@@ -224,18 +244,7 @@
 	if (hr == NULL)
 		return NULL;
 
-	carrier = wpabuf_alloc(2 + os_strlen(wifi_handover_type));
-	if (carrier == NULL) {
-		wpabuf_free(hr);
-		return NULL;
-	}
-	wpabuf_put_u8(carrier, 0x02); /* Carrier Type Format */
-	wpabuf_put_u8(carrier, os_strlen(wifi_handover_type));
-	wpabuf_put_str(carrier, wifi_handover_type);
-
-	hc = ndef_build_record(FLAG_MESSAGE_END | FLAG_TNF_NFC_FORUM, "Hc", 2,
-			       "0", 1, carrier);
-	wpabuf_free(carrier);
+	hc = ndef_build_wifi_hc(0);
 	if (hc == NULL) {
 		wpabuf_free(hr);
 		return NULL;