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authortv <tv@krebsco.de>2019-11-27 09:53:41 +0100
committertv <tv@krebsco.de>2019-11-27 09:53:41 +0100
commit16a023af18eddaaa603ef40a42a0f2a247814446 (patch)
tree6f3ebd85c2bff1036dfa8fde04a7ffd8142076db /lass/5pkgs
parentdc75a54cfb8b431e9ea43be6dc7207fd77f54c2f (diff)
parentaa341e428a489133061a3e898ed6a93a5c290b54 (diff)
Merge remote-tracking branch 'prism/master'
Diffstat (limited to 'lass/5pkgs')
m---------lass/5pkgs/autowifi0
-rw-r--r--lass/5pkgs/autowifi/autowifi.py228
-rw-r--r--lass/5pkgs/autowifi/default.nix1
3 files changed, 0 insertions, 229 deletions
diff --git a/lass/5pkgs/autowifi b/lass/5pkgs/autowifi
new file mode 160000
+Subproject cf3ae8f6fe285eab67db4f36f9a3da3762c3531
diff --git a/lass/5pkgs/autowifi/autowifi.py b/lass/5pkgs/autowifi/autowifi.py
deleted file mode 100644
index fa3d007e7..000000000
--- a/lass/5pkgs/autowifi/autowifi.py
+++ /dev/null
@@ -1,228 +0,0 @@
-import subprocess
-import time
-import urllib.request
-import logging
-import argparse
-import socket
-import struct
-import signal
-import os
-
-wifiDB = ''
-logger = logging.getLogger()
-got_signal = False
-
-
-def signal_handler(signum, frame):
- global got_signal
- got_signal = True
-
-
-def get_default_gateway() -> str:
- """Read the default gateway directly from /proc."""
- with open("/proc/net/route") as fh:
- for line in fh:
- fields = line.strip().split()
- if fields[1] != '00000000' or not int(fields[3], 16) & 2:
- continue
-
- return socket.inet_ntoa(struct.pack("<L", int(fields[2], 16)))
-
-
-def connect(ssid, psk=None):
- subprocess.run(
- ["nmcli", "connection", "delete", "autowifi"],
- stdout=subprocess.PIPE,
- )
- logging.info('connecting to %s', ssid)
- if psk is None:
- subprocess.run(
- [
- "nmcli",
- "device",
- "wifi",
- "connect",
- ssid,
- "name",
- "autowifi",
- ],
- stdout=subprocess.PIPE,
- )
- else:
- subprocess.run(
- [
- "nmcli",
- "device",
- "wifi",
- "connect",
- ssid,
- "name",
- "autowifi",
- "password",
- psk,
- ],
- stdout=subprocess.PIPE,
- )
- time.sleep(5)
-
-
-def scan():
- logging.debug('scanning wifis')
- wifis_raw = subprocess.check_output([
- "nmcli",
- "-t",
- "device",
- "wifi",
- "list",
- "--rescan",
- "yes",
- ])
- wifis_list = wifis_raw.split(b'\n')
- logging.debug('scanning wifis finished')
- wifis = []
- for line in wifis_list:
- logging.debug(line)
- ls = line.split(b':')
- if len(ls) == 8:
- wifis.append({
- "ssid": ls[1],
- "signal": int(ls[5]),
- "crypto": ls[7]
- })
- return wifis
-
-
-def get_known_wifis():
- wifis_lines = []
- with open(wifiDB) as f:
- wifis_lines = f.read().splitlines()
- wifis = []
- for line in wifis_lines:
- ls = line.split('/')
- wifis.append({"ssid": ls[0].encode(), "psk": ls[1].encode()})
- return wifis
-
-
-def check_network():
- logging.debug('checking network')
-
- global got_signal
- if got_signal:
- logging.info('got disconnect signal')
- got_signal = False
- return False
- else:
- gateway = get_default_gateway()
- if gateway:
- response = subprocess.run(
- [
- 'ping',
- '-q',
- '-c',
- '1',
- gateway,
- ],
- stdout=subprocess.PIPE,
- )
- if response.returncode == 0:
- logging.debug('host %s is up', gateway)
- return True
- else:
- logging.debug('host %s is down', gateway)
- return False
- else:
- logging.debug('no gateway')
- return False
-
-
-def check_internet():
- logging.debug('checking internet')
-
- try:
- with open('./dummy_internet') as f:
- dummy_content = f.read()
- if dummy_content == 'xxx\n':
- return True
- beacon = urllib.request.urlopen('http://krebsco.de/secret')
- except Exception as e: # noqa
- logging.debug(e)
- logging.info('no internet exc')
- return False
- if beacon.read() == b'1337\n':
- return True
- logging.info('no internet oh')
- return False
-
-
-def is_wifi_open(wifi):
- if wifi['crypto'] == b'':
- return True
- else:
- return False
-
-
-def is_wifi_seen(wifi, seen_wifis):
- for seen_wifi in seen_wifis:
- if seen_wifi["ssid"] == wifi["ssid"]:
- return True
- return False
-
-
-def main():
- parser = argparse.ArgumentParser()
-
- parser.add_argument(
- '-c', '--config',
- dest='config',
- help='wifi config file to use',
- default='/etc/wifis',
- )
-
- parser.add_argument(
- '-l', '--loglevel',
- dest='loglevel',
- help='loglevel to use',
- default=logging.INFO,
- )
-
- parser.add_argument(
- '-p', '--pidfile',
- dest='pidfile',
- help='file to write the pid to',
- default=None,
- )
-
- args = parser.parse_args()
-
- global wifiDB
- wifiDB = args.config
- logger.setLevel(args.loglevel)
-
- signal.signal(signal.SIGUSR1, signal_handler)
-
- if args.pidfile:
- with open(args.pidfile, 'w+') as f:
- f.write(str(os.getpid()))
-
- while True:
- if not check_network():
- wifis = scan()
- known_wifis = get_known_wifis()
- known_seen_wifis = [
- wifi for wifi in known_wifis if is_wifi_seen(wifi, wifis)
- ]
- for wifi in known_seen_wifis:
- connect(wifi['ssid'], wifi['psk'])
- if check_network():
- break
- open_wifis = filter(is_wifi_open, wifis)
- for wifi in open_wifis:
- connect(wifi['ssid'])
-
- if check_network():
- break
- time.sleep(10)
-
-
-if __name__ == '__main__':
- main()
diff --git a/lass/5pkgs/autowifi/default.nix b/lass/5pkgs/autowifi/default.nix
deleted file mode 100644
index d565a6bb6..000000000
--- a/lass/5pkgs/autowifi/default.nix
+++ /dev/null
@@ -1 +0,0 @@
-pkgs.writers.writePython3Bin "autowifi" {} ./autowifi.py