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/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c
index 93b740e..f20721b 100644
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -352,6 +352,59 @@
 
 	return -1;
 }
+
+
+static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd,
+						   char *cmd, char *reply,
+						   size_t max_len)
+{
+	struct wpabuf *buf;
+	int res;
+	char *pos;
+	int ndef;
+
+	pos = os_strchr(cmd, ' ');
+	if (pos == NULL)
+		return -1;
+	*pos++ = '\0';
+
+	if (os_strcmp(cmd, "WPS") == 0)
+		ndef = 0;
+	else if (os_strcmp(cmd, "NDEF") == 0)
+		ndef = 1;
+	else
+		return -1;
+
+	if (os_strcmp(pos, "WPS-CR") == 0)
+		buf = hostapd_wps_nfc_hs_cr(hapd, ndef);
+	else
+		buf = NULL;
+	if (buf == NULL)
+		return -1;
+
+	res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
+					 wpabuf_len(buf));
+	reply[res++] = '\n';
+	reply[res] = '\0';
+
+	wpabuf_free(buf);
+
+	return res;
+}
+
+
+static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd,
+						  char *cmd)
+{
+	/*
+	 * Since NFC connection handover provided full WPS Credential, there is
+	 * no need for additional operations within hostapd. Just report this in
+	 * debug log.
+	 */
+	wpa_printf(MSG_DEBUG, "NFC: Connection handover reported: %s", cmd);
+	return 0;
+}
+
 #endif /* CONFIG_WPS_NFC */
 
 
@@ -913,6 +966,12 @@
 	} else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) {
 		reply_len = hostapd_ctrl_iface_wps_nfc_token(
 			hapd, buf + 14, reply, reply_size);
+	} else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) {
+		reply_len = hostapd_ctrl_iface_nfc_get_handover_sel(
+			hapd, buf + 21, reply, reply_size);
+	} else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) {
+		if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20))
+			reply_len = -1;
 #endif /* CONFIG_WPS_NFC */
 #endif /* CONFIG_WPS */
 #ifdef CONFIG_WNM