EMV Testsuite: Tool to check if the network interfaces work

* Merge from jethro, refs #30619
* Detects the existing network interfaces
* Verifies the shell commands used in the BIT-Test
* Provides a guided test that prints out the instructions for each step

Change-Id: Ic7c4d49779202e82f226509c5cacbffa371a2ce6
Reviewed-on: http://gfweb/gerrit/297

runtest/emv_network_pretest.py

+#!/usr/bin/env python
+# EMV-Network-Pretest
+# This test validates the commands, which are execute in the BIT-Test
+# It is necessary to configure the network interfaces as described in the Testcase
+# If any problems occure check the log file /opt/ltp/results/network_test.log
+
+import subprocess
+import time
+import curses
+
+# Window dimensions
+x_max = 70
+y_max = 20
+unplugged_tabstop = 15
+plugged_tabstop = 37
+current_line = 0
+
+#---------------------------------------------------------------------------#
+# Curses Window
+#---------------------------------------------------------------------------#
+def initialize_window(stdscr):
+    curses.start_color()
+    curses.noecho()
+    stdscr.keypad(1)
+
+    # Init color pairs
+    curses.init_pair(1, curses.COLOR_BLACK, curses.COLOR_YELLOW) # Action messages
+    curses.init_pair(4, curses.COLOR_BLACK, curses.COLOR_WHITE)  
+    curses.init_pair(2, curses.COLOR_BLACK, curses.COLOR_RED)    # Test failed
+    curses.init_pair(3, curses.COLOR_BLACK, curses.COLOR_GREEN)  # Test passed
+
+    # Draw frame
+    stdscr.addstr(1, 27, "EMV-Network-Test", curses.color_pair(4))
+    stdscr.addstr(3, unplugged_tabstop, "Unplugged")
+    stdscr.addstr(3, plugged_tabstop, "Plugged")
+    for x in range(0,x_max+1):
+        stdscr.move(0,x)
+        stdscr.addstr("-")
+    for x in range(0,x_max+1):
+        stdscr.move(y_max,x)
+        stdscr.addstr("-")
+    for y in range(1,y_max):
+        stdscr.move(y,0)
+        stdscr.addstr("|")
+    for y in range(1,y_max):
+        stdscr.move(y,x_max)
+        stdscr.addstr("|")
+    stdscr.refresh()
+
+#def destroy_window():
+#    curses.nocbreak(); stdscr.keypad(0); curses.echo()
+#    curses.endwin()
+
+#---------------------------------------------------------------------------#
+# Instruction messages
+#---------------------------------------------------------------------------#
+def msg_write(action,keys,stdscr):
+    stdscr.move(18,2)
+    stdscr.addstr(action, curses.color_pair(1)) 
+    stdscr.move(19,2)
+    stdscr.addstr(keys, curses.color_pair(1))
+    stdscr.refresh()
+    stdscr.move(y_max+2,0)
+def msg_clear(stdscr):
+    for x in range(1,70):
+        stdscr.move(18,x)
+        stdscr.addstr(" ")
+    for x in range(1,70):
+        stdscr.move(19,x)
+        stdscr.addstr(" ")
+    stdscr.refresh()
+    stdscr.move(y_max+2,0)
+
+#---------------------------------------------------------------------------#
+# Evaluate test output
+#---------------------------------------------------------------------------#
+def ev_output(out,plug,line,stdscr):
+    # Passed if the output = 0 and the network is up
+    if plug == 1:
+        if out == 0:
+            stdscr.addstr(line,plugged_tabstop," Test passed ",curses.color_pair(3))
+        else:
+            stdscr.addstr(line,plugged_tabstop," Test failed ",curses.color_pair(2))
+    else: 
+    # Passed if the output != 0 and the network is down
+        if out != 0:
+            stdscr.addstr(line,unplugged_tabstop," Test passed ",curses.color_pair(3))
+        else:    
+            stdscr.addstr(line,unplugged_tabstop," Test failed ",curses.color_pair(2))
+    stdscr.refresh()
+
+#---------------------------------------------------------------------------#
+# Get user events
+#---------------------------------------------------------------------------#
+def user_input(stdscr):
+    action = ord('q')
+    while action != ord('c'):
+        action = stdscr.getch()
+        if action == ord('q'): 
+            curses.nocbreak(); stdscr.keypad(0); curses.echo()
+            curses.endwin()   
+            exit()
+
+#---------------------------------------------------------------------------#
+# Execute bash commands and obtain return values
+#---------------------------------------------------------------------------#
+def bash_cmd(inputStr):
+    callStr = inputStr + " &>>/opt/ltp/results/network_test.log"
+    value = subprocess.call(callStr, shell=True)
+    return value
+
+#---------------------------------------------------------------------------#
+# Network Ethernet 0
+#---------------------------------------------------------------------------#
+def eth0(stdscr):
+    current_line = 5
+    stdscr.addstr(current_line,2,"Ethernet 0:")
+
+    # Unplugged test
+    msg_write("Remove the cable from ethernet port 0","Press 'c' to continue, 'q' to quit",stdscr)
+    user_input(stdscr)
+    msg_clear(stdscr)
+
+    out = subprocess.call("/opt/ltp/testcases/bin/iptest -q -g 192.168.1.100 -n 1 -w 50 &>>/opt/ltp/results/network_test.log", shell=True)
+    ev_output(out,0,current_line,stdscr)
+
+    # Plugged test
+    msg_write ("Reconnect the cable","Press 'c' to continue, 'q' to quit",stdscr)
+    user_input(stdscr)
+    msg_clear(stdscr)
+    msg_write("Wait for the network to come up","",stdscr)
+    time.sleep(8)
+    msg_clear(stdscr)
+    
+    out = subprocess.call("/opt/ltp/testcases/bin/iptest -q -g 192.168.1.100 -n 1 -w 50 &>>/opt/ltp/results/network_test.log", shell=True)
+    ev_output(out,1,current_line,stdscr)
+
+#---------------------------------------------------------------------------#
+# Network Ethernet 1
+#---------------------------------------------------------------------------#
+def eth1(stdscr):
+    current_line = 7
+    stdscr.addstr(current_line,2,"Ethernet 1:")
+
+    # Unplugged test
+    msg_write("Remove the cable from ethernet port 1","Press 'c' to continue, 'q' to quit",stdscr)
+    user_input(stdscr)
+    msg_clear(stdscr)
+
+    out = subprocess.call("/opt/ltp/testcases/bin/iptest -q -g 192.168.2.100 -n 1 -w 50 &>>/opt/ltp/results/network_test.log", shell=True)
+    ev_output(out,0,current_line,stdscr)
+
+    # Plugged test
+    msg_write ("Reconnect the cable","Press 'c' to continue, 'q' to quit",stdscr)
+    user_input(stdscr)
+    msg_clear(stdscr)
+    msg_write("Wait for the network to come up","",stdscr)
+    time.sleep(8)
+    msg_clear(stdscr)
+
+    out = subprocess.call("/opt/ltp/testcases/bin/iptest -q -g 192.168.2.100 -n 1 -w 50 &>>/opt/ltp/results/network_test.log", shell=True)
+    ev_output(out,1,current_line,stdscr)
+
+#---------------------------------------------------------------------------#
+# WLAN
+#---------------------------------------------------------------------------#
+def wlan(stdscr):
+    current_line = 9
+    stdscr.addstr(current_line,2,"WLAN:")
+
+    # Unplugged test
+    msg_write("Remove ethernet cable from the router","Press 'c' to continue, 'q' to quit",stdscr)
+    user_input(stdscr)
+    msg_clear(stdscr)
+
+    out = subprocess.call("/opt/ltp/testcases/bin/iptest -q -g 192.168.3.100 -n 1 -w 1000 &>>/opt/ltp/results/network_test.log", shell=True)
+    ev_output(out,0,current_line,stdscr)
+
+    # Plugged test
+    msg_write ("Reconnect the cable","Press 'c' to continue, 'q' to quit",stdscr)
+    user_input(stdscr)
+    msg_clear(stdscr)
+    msg_write("Wait for the network to come up","",stdscr)
+    time.sleep(10)
+    msg_clear(stdscr)
+
+    out = subprocess.call("/opt/ltp/testcases/bin/iptest -q -g 192.168.3.100 -n 1 -w 1000 &>>/opt/ltp/results/network_test.log", shell=True)
+    ev_output(out,1,current_line,stdscr)
+
+#---------------------------------------------------------------------------#
+# Main
+#---------------------------------------------------------------------------#
+
+def main(stdscr):
+    initialize_window(stdscr)   
+    msg_write("Ensure the network interfaces are configured correctly. For this","you can use the emv_network_config.sh file. Press 'c' to continue",stdscr)
+    user_input(stdscr)
+    msg_clear(stdscr)
+    # Resest log
+    subprocess.call("date &>/opt/ltp/results/network_test.log", shell=True)
+    # Ethernet 0 test
+    eth0(stdscr)
+    # Check if a second ethernet interface exists
+    if(subprocess.call("ifconfig -a | grep eth1 &> /dev/null", shell=True)== 0):
+        eth1(stdscr)
+    # Check if a wlan interface exists
+    if(subprocess.call("ifconfig -a | grep wlan0 &> /dev/null", shell=True)== 0):
+        wlan(stdscr)
+
+curses.wrapper(main)