Add example WPS AP mode UI for wpa_supplicant

This script shows some minimal WPS user interface requirements for
mobile AP support with wpa_supplicant.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

wpa_supplicant/examples/wps-ap-cli

@@ -0,0 +1,78 @@
+#!/bin/sh
+
+CLI=wpa_cli
+
+pbc()
+{
+	echo "Starting PBC mode"
+	echo "Push button on the station within two minutes"
+	if ! $CLI wps_pbc | grep -q OK; then
+		echo "Failed to enable PBC mode"
+	fi
+}
+
+enter_pin()
+{
+	echo "Enter a PIN from a station to be enrolled to the network."
+	read -p "Enrollee PIN: " pin
+	cpin=`$CLI wps_check_pin "$pin" | tail -1`
+	if [ "$cpin" = "FAIL-CHECKSUM" ]; then
+		echo "Checksum digit is not valid"
+		read -p "Do you want to use this PIN (y/n)? " resp
+		case "$resp" in
+			y*)
+				cpin=`echo "$pin" | sed "s/[^1234567890]//g"`
+				;;
+			*)
+				return 1
+				;;
+		esac
+	fi
+	if [ "$cpin" = "FAIL" ]; then
+		echo "Invalid PIN: $pin"
+		return 1
+	fi
+	echo "Enabling Enrollee PIN: $cpin"
+	$CLI wps_pin any "$cpin"
+}
+
+show_config()
+{
+	$CLI status wps
+}
+
+main_menu()
+{
+	echo "WPS AP"
+	echo "------"
+	echo "1: Push button (activate PBC)"
+	echo "2: Enter Enrollee PIN"
+	echo "3: Show current configuration"
+	echo "0: Exit wps-ap-cli"
+
+	read -p "Command: " cmd
+
+	case "$cmd" in
+		1)
+			pbc
+			;;
+		2)
+			enter_pin
+			;;
+		3)
+			show_config
+			;;
+		0)
+			exit 0
+			;;
+		*)
+			echo "Unknown command: $cmd"
+			;;
+	esac
+
+	echo
+	main_menu
+}
+
+
+main_menu