class WWANControl(object):
def __init__(self):
self.enabled = False
self.dhcpcd = None
self.watchdog = None
self._watchdog_ip_detected = False
def enable(self):
self.rfkill(False)
sys.stdout.write("Waiting for USB device ...")
sys.stdout.flush()
while not self.ready:
sleep(0.5)
sys.stdout.write('.')
sys.stdout.flush()
print " OK"
self.modem = WWANModem(self.ports['wwan'], interface=config['wwan_interface'])
# first command may fail due to device being not ready, yet
sys.stdout.write("Unlocking SIM Card ...")
sys.stdout.flush()
while True:
try:
self.modem.unlock_sim(config['pin'])
break
except (CommandError, TimeoutException):
sleep(0.5)
sys.stdout.write('.')
sys.stdout.flush()
print " OK"
sys.stdout.write("Configuring UMTS card ...")
self.modem.apn = config['apn']
sys.stdout.write('.')
sys.stdout.flush()
self.modem.ipver = config['ipver']
sys.stdout.write('.')
sys.stdout.flush()
print " OK"
sys.stdout.write("Connecting to network ...")
sys.stdout.flush()
self.modem.requested_radio_technology = PREFER_UMTS
while not self.modem.network_registration in [REG_HOME, REG_ROAMING]:
sleep(0.5)
sys.stdout.write('.')
sys.stdout.flush()
while self.modem.aquired_radio_technology == NONE:
sleep(0.5)
sys.stdout.write('.')
sys.stdout.flush()
print " OK"
#while not self.modem.connected:
# try:
sys.stdout.write("Starting IP connection ...")
sys.stdout.flush()
self.modem.connected = True
while not self.modem.connected:
sleep(0.5)
sys.stdout.write('.')
sys.stdout.flush()
print " OK"
# except CommandError:
# sleep(0.5)
sys.stdout.write("Getting IP via DHCP ...")
self.dhcp_client(True)
self.carrier_watchdog(True)
while not self.ip:
sys.stdout.write('.')
sys.stdout.flush()
sleep(0.5)
print " OK"
self.enabled = True
def disable(self):
sys.stdout.write("Shutting down UMTS card ...")
self.enabled = False
sys.stdout.write('.')
sys.stdout.flush()
self.carrier_watchdog(False)
sys.stdout.write('.')
sys.stdout.flush()
self.dhcp_client(False)
sys.stdout.write('.')
sys.stdout.flush()
try:
self.modem.connected = False
self.modem.requested_radio_technology = OFF
except:
pass
sys.stdout.write('.')
sys.stdout.flush()
self.modem = None
self.rfkill(True)
sys.stdout.write('.')
sys.stdout.flush()
print " OK"
def restart(self):
try:
self.dhcp_client(False)
self.modem.connected = False
except CommandError:
pass
self.modem.connected = True
self.dhcp_client(True)
def dhcp_client(self, value):
if value:
self._watchdog_ip_detected = False
self.dhcpcd = subprocess.Popen(["dhcpcd", "-qB", "--noipv4ll", config['wwan_interface']])
elif self.dhcpcd:
self.dhcpcd.terminate()
self.dhcpcd = None
def _watchdog(self):
while not self.stop_watchdog.wait(1):
if self.enabled:
if not self.modem.carrier:
self.restart()
if self.ip:
self._watchdog_ip_detected = True
elif self._watchdog_ip_detected:
# IP disappeared
self.restart()
def carrier_watchdog(self, value):
if value:
self.stop_watchdog = threading.Event()
self.watchdog = threading.Thread(target=self._watchdog)
self.watchdog.daemon = True
self.watchdog.start()
elif self.watchdog:
self.stop_watchdog.set()
self.watchdog.join()
def rfkill(self, value):
return subprocess.call(["rfkill", "block" if value else "unblock", "wwan"],
stdout=open("/dev/null", "w"), stderr=subprocess.STDOUT) == 0
@property
def ready(self):
return subprocess.call(["lsusb", "-d", config['usbid']], stdout=open("/dev/null", "w"), stderr=subprocess.STDOUT) == 0
@property
def ports(self):
ports = {}
for acm in filter(lambda i:i.startswith("ttyACM"), os.listdir("/sys/class/tty/")):
f = os.path.join("/sys/class/tty/", acm, "device/interface")
if os.path.exists(f):
fstr = open(f).read().strip()
if fstr == "Ericsson F3507g Mobile Broadband Minicard Data Modem":
ports['wwan'] = os.path.join('/dev', acm)
elif fstr == "Ericsson F3507g Mobile Broadband Minicard GPS Port":
ports['gps'] = os.path.join('/dev', acm)
return ports
@property
def ip(self):
ip_addr = None
proc = subprocess.Popen(
["ip -%d -o addr | awk '!/^[0-9]*: ?lo|link\/ether/ {gsub(\"/\", \" \"); print $2\" \"$4}'" % config["ipver"]],
shell=True,
stdout=subprocess.PIPE
)
for line in iter(proc.stdout.readline, ''):
line = line.strip()
intf, ipaddr = line.split()
if config["ipver"] == 6 and ipaddr.startswith("fe80"):
continue
if intf == config["wwan_interface"]:
ip_addr = ipaddr
proc.wait()
return ip_addr
class WWANControl(object):
def __init__(self):
self.enabled = False
self.dhcpcd = None
self.watchdog = None
self._watchdog_ip_detected = False
def enable(self):
self.rfkill(False)
while not self.ready:
sleep(0.5)
self.modem = WWANModem(self.ports["wwan"], interface=config["wwan_interface"])
# first command may fail due to device being not ready, yet
while True:
try:
self.modem.unlock_sim(config["pin"])
break
except CommandError:
sleep(0.5)
self.modem.apn = config["apn"]
self.modem.ipver = config["ipver"]
self.modem.requested_radio_technology = PREFER_UMTS
while not self.modem.network_registration in [REG_HOME, REG_ROAMING]:
sleep(0.5)
while self.modem.aquired_radio_technology == NONE:
sleep(0.5)
# while not self.modem.connected:
# try:
self.modem.connected = True
# except CommandError:
# sleep(0.5)
self.dhcp_client(True)
self.carrier_watchdog(True)
self.enabled = True
def disable(self):
self.enabled = False
self.carrier_watchdog(False)
self.dhcp_client(False)
try:
self.modem.connected = False
self.modem.requested_radio_technology = OFF
except:
pass
self.modem = None
self.rfkill(True)
def restart(self):
try:
self.dhcp_client(False)
self.modem.connected = False
except CommandError:
pass
self.modem.connected = True
self.dhcp_client(True)
def dhcp_client(self, value):
if value:
self._watchdog_ip_detected = False
self.dhcpcd = subprocess.Popen(["dhcpcd", "-qB", "--noipv4ll", config["wwan_interface"]])
elif self.dhcpcd:
self.dhcpcd.terminate()
self.dhcpcd = None
def _watchdog(self):
while not self.stop_watchdog.wait(1):
if self.enabled:
if not self.modem.carrier:
self.restart()
if self.ip:
self._watchdog_ip_detected = True
elif self._watchdog_ip_detected:
# IP disappeared
self.restart()
def carrier_watchdog(self, value):
if value:
self.stop_watchdog = threading.Event()
self.watchdog = threading.Thread(target=self._watchdog)
self.watchdog.daemon = True
self.watchdog.start()
elif self.watchdog:
self.stop_watchdog.set()
self.watchdog.join()
def rfkill(self, value):
return (
subprocess.call(
["rfkill", "block" if value else "unblock", "wwan"],
stdout=open("/dev/null", "w"),
stderr=subprocess.STDOUT,
)
== 0
)
@property
def ready(self):
return (
subprocess.call(["lsusb", "-d", config["usbid"]], stdout=open("/dev/null", "w"), stderr=subprocess.STDOUT)
== 0
)
@property
def ports(self):
ports = {}
for acm in filter(lambda i: i.startswith("ttyACM"), os.listdir("/sys/class/tty/")):
f = os.path.join("/sys/class/tty/", acm, "device/interface")
if os.path.exists(f):
fstr = open(f).read().strip()
if fstr == "Ericsson F3507g Mobile Broadband Minicard Data Modem":
ports["wwan"] = os.path.join("/dev", acm)
elif fstr == "Ericsson F3507g Mobile Broadband Minicard GPS Port":
ports["gps"] = os.path.join("/dev", acm)
return ports
@property
def ip(self):
ip_addr = None
proc = subprocess.Popen(
['ip -%d -o addr | awk \'!/^[0-9]*: ?lo|link\/ether/ {gsub("/", " "); print $2" "$4}\'' % config["ipver"]],
shell=True,
stdout=subprocess.PIPE,
)
for line in iter(proc.stdout.readline, ""):
line = line.strip()
intf, ipaddr = line.split()
if config["ipver"] == 6 and ipaddr.startswith("fe80"):
continue
if intf == config["wwan_interface"]:
ip_addr = ipaddr
proc.wait()
return ip_addr