def process():
killer = GracefulKiller()
dial_tone_enabled = not "--disable-dial-tone" in sys.argv
# Make sure pppd isn't running
with open(os.devnull, 'wb') as devnull:
subprocess.call(["sudo", "killall", "pppd"], stderr=devnull)
BAUD_SPEED = 56000
device_and_speed, internet_connected = None, False
## Startup checks, make sure that we don't do anything until
## we have a modem and internet connection
while True:
logger.info("Detecting connection and modem...")
internet_connected = check_internet_connection()
device_and_speed = detect_device_and_speed()
if internet_connected and device_and_speed:
logger.info("Internet connected and device found!")
break
elif not internet_connected:
logger.warn("Unable to detect an internet connection. Waiting...")
elif not device_and_speed:
logger.warn("Unable to find a modem device. Waiting...")
time.sleep(5)
modem = Modem(device_and_speed[0], device_and_speed[1], BAUD_SPEED,
dial_tone_enabled)
dreamcast_ip = autoconfigure_ppp(modem.device_name, modem.device_speed)
# Get a port forwarding object, now that we know the DC IP.
port_forwarding = PortForwarding(dreamcast_ip, logger)
mode = "LISTENING"
modem.connect()
if dial_tone_enabled:
modem.start_dial_tone()
time_digit_heard = None
dcnow = DreamcastNowService()
while True:
if killer.kill_now:
break
now = datetime.now()
if mode == "LISTENING":
modem.update()
char = modem._serial.read(1).strip()
if not char:
continue
if ord(char) == 16:
#DLE character
try:
char = modem._serial.read(1)
digit = int(char)
logger.info("Heard: %s", digit)
mode = "ANSWERING"
modem.stop_dial_tone()
time_digit_heard = now
except (TypeError, ValueError):
pass
elif mode == "ANSWERING":
if (now - time_digit_heard).total_seconds() > 8.0:
time_digit_heard = None
modem.answer()
modem.disconnect()
mode = "CONNECTED"
elif mode == "CONNECTED":
dcnow.go_online(dreamcast_ip)
port_forwarding.forward_all()
# We start watching /var/log/messages for the hang up message
for line in sh.tail("-f",
"/var/log/messages",
"-n",
"1",
_iter=True):
if "Modem hangup" in line:
logger.info(
"Detected modem hang up, going back to listening")
time.sleep(5) # Give the hangup some time
break
port_forwarding.delete_all()
dcnow.go_offline()
mode = "LISTENING"
modem = Modem(device_and_speed[0], device_and_speed[1], BAUD_SPEED,
dial_tone_enabled)
modem.connect()
if dial_tone_enabled:
modem.start_dial_tone()
return 0
def process():
killer = GracefulKiller()
dial_tone_enabled = not "--disable-dial-tone" in sys.argv
# Make sure pppd isn't running
with open(os.devnull, 'wb') as devnull:
subprocess.call(["sudo", "killall", "pppd"], stderr=devnull)
BAUD_SPEED = 57600
device_and_speed, internet_connected = None, False
## Startup checks, make sure that we don't do anything until
## we have a modem and internet connection
while True:
logger.info("Detecting connection and modem...")
internet_connected = check_internet_connection()
device_and_speed = detect_device_and_speed()
if internet_connected and device_and_speed:
logger.info("Internet connected and device found!")
break
elif not internet_connected:
logger.warn("Unable to detect an internet connection. Waiting...")
elif not device_and_speed:
logger.warn("Unable to find a modem device. Waiting...")
time.sleep(5)
modem = Modem(device_and_speed[0], device_and_speed[1], BAUD_SPEED, dial_tone_enabled)
dreamcast_ip = autoconfigure_ppp(modem.device_name, modem.device_speed)
mode = "LISTENING"
modem.connect()
if dial_tone_enabled:
modem.start_dial_tone()
time_digit_heard = None
dcnow = DreamcastNowService()
while True:
if killer.kill_now:
break
now = datetime.now()
if mode == "LISTENING":
modem.update()
char = modem._serial.read(1).strip()
if not char:
continue
if ord(char) == 16:
#DLE character
try:
char = modem._serial.read(1)
digit = int(char)
logger.info("Heard: %s", digit)
mode = "ANSWERING"
modem.stop_dial_tone()
time_digit_heard = now
except (TypeError, ValueError):
pass
elif mode == "ANSWERING":
if (now - time_digit_heard).total_seconds() > 8.0:
time_digit_heard = None
modem.answer()
modem.disconnect()
mode = "CONNECTED"
elif mode == "CONNECTED":
dcnow.go_online(dreamcast_ip)
# We start watching /var/log/messages for the hang up message
for line in sh.tail("-f", "/var/log/messages", "-n", "1", _iter=True):
if "Modem hangup" in line:
logger.info("Detected modem hang up, going back to listening")
time.sleep(5) # Give the hangup some time
break
dcnow.go_offline()
mode = "LISTENING"
modem = Modem(device_and_speed[0], device_and_speed[1], BAUD_SPEED, dial_tone_enabled)
modem.connect()
if dial_tone_enabled:
modem.start_dial_tone()
return 0
def process():
killer = GracefulKiller()
dial_tone_enabled = "--disable-dial-tone" not in sys.argv
# Initial cleanup: old processes and config files
with open(os.devnull, 'wb') as devnull:
# use sh -c to delay eval instead of shell=True; globbing would be expanded with the current user otherwise
subprocess.call([
"sudo", "sh", "-c",
"rm /etc/ppp/peers/dreamcast* /var/run/ppp-dreamcast*.pid"
],
stderr=devnull)
# Make sure pppd isn't running
with open(os.devnull, 'wb') as devnull:
subprocess.call(["sudo", "killall", "pppd"], stderr=devnull)
devices, internet_connected = None, False
# Startup checks, make sure that we don't do anything until
# we have a modem and internet connection
while True:
logger.info("Detecting connection and modem...")
internet_connected = check_internet_connection()
devices = detect_devices_and_speed()
if internet_connected and devices:
logger.info("Internet connected and devices found!")
break
elif not internet_connected:
logger.warn("Unable to detect an internet connection. Waiting...")
elif not devices:
logger.warn("Unable to find a modem device. Waiting...")
time.sleep(5)
autoconfigure_ppp(devices)
count = 0
for device in devices:
count += 1
if count < len(devices):
# we're not on the last device, fork!
if os.fork() == 0:
# parent process
continue
modem = Modem(device['device'], device['speed'], dial_tone_enabled)
# if len(devices) == 1:
# Get a port forwarding object, now that we know the DC IP.
# port_forwarding = PortForwarding(dreamcast_ip, logger)
# Disabled until we can figure out a faster way of doing this.. it takes a minute
# on my router which is way too long to wait for the DreamPi to boot
# port_forwarding.forward_all()
mode = "LISTENING"
modem.connect()
if dial_tone_enabled:
modem.start_dial_tone()
time_digit_heard = None
# TODO pass device identifier to let dcnow distinguish different dreamcasts ?
dcnow = DreamcastNowService()
while True:
if killer.kill_now:
break
now = datetime.now()
if mode == "LISTENING":
modem.update()
char = modem._serial.read(1).strip()
if not char:
continue
if ord(char) == 16:
# DLE character
try:
char = modem._serial.read(1)
digit = int(char)
logger.info("Heard: %s", digit)
mode = "ANSWERING"
modem.stop_dial_tone()
time_digit_heard = now
except (TypeError, ValueError):
pass
elif mode == "ANSWERING":
if (now - time_digit_heard).total_seconds() > 8.0:
time_digit_heard = None
modem.answer(device['name'])
modem.disconnect()
pid = find_pppd_pid(device['name'])
device['pid'] = pid
mode = "CONNECTED"
elif mode == "CONNECTED":
# TODO pass device identifier to let dcnow distinguish different dreamcasts ?
dcnow.go_online(device['dreamcast_ip'])
# We start watching /var/log/messages for the hang up message
pidstring = "pppd[{}]".format(device['pid'])
for line in sh.tail("-f",
"/var/log/messages",
"-n",
"1",
_iter=True):
# ignore lines that do not come from our pppd pid
if pidstring not in line:
continue
if "Modem hangup" in line:
logger.info(
"Detected modem hang up, going back to listening")
time.sleep(5) # Give the hangup some time
break
dcnow.go_offline()
mode = "LISTENING"
modem = Modem(device['device'], device['speed'],
dial_tone_enabled)
modem.connect()
if dial_tone_enabled:
modem.start_dial_tone()
# if len(devices) == 1:
# Temporarily disabled, see above
# port_forwarding.delete_all()
return 0