def stop_router():
#bring down the interface
cli.execute_shell('ifconfig mon.' + wlan + ' down')
#TODO: Find some workaround. killing hostapd brings down the wlan0 interface in ifconfig.
#~ #stop hostapd
#~ if cli.is_process_running('hostapd')>0:
#~ cli.writelog('stopping hostapd')
#~ cli.execute_shell('pkill hostapd')
#stop dnsmasq
if cli.is_process_running('dnsmasq')>0:
cli.writelog('stopping dnsmasq')
cli.execute_shell('killall dnsmasq')
#disable forwarding in iptables.
cli.writelog('disabling forward rules in iptables.')
cli.execute_shell('iptables -P FORWARD DROP')
#delete iptables rules that were added for wlan traffic.
if wlan != None:
cli.execute_shell('iptables -D OUTPUT --out-interface ' + wlan + ' -j ACCEPT')
cli.execute_shell('iptables -D INPUT --in-interface ' + wlan + ' -j ACCEPT')
cli.execute_shell('iptables --table nat --delete-chain')
cli.execute_shell('iptables --table nat -F')
cli.execute_shell('iptables --table nat -X')
#disable forwarding in sysctl.
cli.writelog('disabling forward in sysctl.')
r = cli.set_sysctl('net.ipv4.ip_forward','0')
print r.strip()
#cli.execute_shell('ifconfig ' + wlan + ' down' + IP + ' netmask ' + Netmask)
#cli.execute_shell('ip addr flush ' + wlan)
print 'hotspot has stopped.'
return
def start_router():
if not check_dependencies():
return
elif not check_interfaces():
return
pre_start()
s = 'ifconfig ' + wlan + ' up ' + IP + ' netmask ' + Netmask
print 'created interface: mon.' + wlan + ' on IP: ' + IP
r = cli.execute_shell(s)
cli.writelog(r)
#cli.writelog('sleeping for 2 seconds.')
print 'wait..'
cli.execute_shell('sleep 2')
i = IP.rindex('.')
ipparts=IP[0:i]
#stop dnsmasq if already running.
if cli.is_process_running('dnsmasq')>0:
print 'stopping dnsmasq'
cli.execute_shell('killall dnsmasq')
#stop hostapd if already running.
if cli.is_process_running('hostapd')>0:
print 'stopping hostapd'
cli.execute_shell('killall hostapd')
#enable forwarding in sysctl.
print 'enabling forward in sysctl.'
r=cli.set_sysctl('net.ipv4.ip_forward','1')
print r.strip()
#enable forwarding in iptables.
print 'creating NAT using iptables: ' + wlan + '<->' + ppp
cli.execute_shell('iptables -P FORWARD ACCEPT')
#add iptables rules to create the NAT.
cli.execute_shell('iptables --table nat --delete-chain')
cli.execute_shell('iptables --table nat -F')
r=cli.execute_shell('iptables --table nat -X')
if len(r.strip())>0: print r.strip()
cli.execute_shell('iptables -t nat -A POSTROUTING -o ' + ppp + ' -j MASQUERADE')
cli.execute_shell('iptables -A FORWARD -i ' + ppp + ' -o ' + wlan + ' -j ACCEPT -m state --state RELATED,ESTABLISHED')
cli.execute_shell('iptables -A FORWARD -i ' + wlan + ' -o ' + ppp + ' -j ACCEPT')
#allow traffic to/from wlan
cli.execute_shell('iptables -A OUTPUT --out-interface ' + wlan + ' -j ACCEPT')
cli.execute_shell('iptables -A INPUT --in-interface ' + wlan + ' -j ACCEPT')
#start dnsmasq
s = 'dnsmasq --dhcp-authoritative --interface=' + wlan + ' --dhcp-range=' + ipparts + '.20,' + ipparts +'.100,' + Netmask + ',4h'
print 'running dnsmasq'
r = cli.execute_shell(s)
cli.writelog(r)
#~ f = open(os.getcwd() + '/hostapd.tem','r')
#~ lout=[]
#~ for line in f.readlines():
#~ lout.append(line.replace('<SSID>',SSID).replace('<PASS>',password))
#~
#~ f.close()
#~ f = open(os.getcwd() + '/hostapd.conf','w')
#~ f.writelines(lout)
#~ f.close()
#writelog('created: ' + os.getcwd() + '/hostapd.conf')
#start hostapd
#s = 'hostapd -B ' + os.path.abspath('run.conf')
s = 'hostapd -B ' + os.getcwd() + '/run.conf'
cli.writelog('running hostapd')
#cli.writelog('sleeping for 2 seconds.')
cli.writelog('wait..')
cli.execute_shell('sleep 2')
r = cli.execute_shell(s)
cli.writelog(r)
print 'hotspot is running.'
return
