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import logging
import os
import socket
import struct
from collections import OrderedDict
from .exceptions import HardwareIncompatibilityError
from .general import SysCommand
from .output import log
from .storage import storage
def get_hw_addr(ifname):
import fcntl
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
info = fcntl.ioctl(s.fileno(), 0x8927, struct.pack('256s', bytes(ifname, 'utf-8')[:15]))
return ':'.join('%02x' % b for b in info[18:24])
def list_interfaces(skip_loopback=True):
interfaces = OrderedDict()
for index, iface in socket.if_nameindex():
if skip_loopback and iface == "lo":
continue
mac = get_hw_addr(iface).replace(':', '-').lower()
interfaces[mac] = iface
return interfaces
def check_mirror_reachable():
log("Testing connectivity to the Arch Linux mirrors ...", level=logging.INFO)
if SysCommand("pacman -Sy").exit_code == 0:
return True
elif os.geteuid() != 0:
log("check_mirror_reachable() uses 'pacman -Sy' which requires root.", level=logging.ERROR, fg="red")
return False
def enrich_iface_types(interfaces: dict):
result = {}
for iface in interfaces:
if os.path.isdir(f"/sys/class/net/{iface}/bridge/"):
result[iface] = 'BRIDGE'
elif os.path.isfile(f"/sys/class/net/{iface}/tun_flags"):
# ethtool -i {iface}
result[iface] = 'TUN/TAP'
elif os.path.isdir(f"/sys/class/net/{iface}/device"):
if os.path.isdir(f"/sys/class/net/{iface}/wireless/"):
result[iface] = 'WIRELESS'
else:
result[iface] = 'PHYSICAL'
else:
result[iface] = 'UNKNOWN'
return result
def get_interface_from_mac(mac):
return list_interfaces().get(mac.lower(), None)
def wireless_scan(interface):
interfaces = enrich_iface_types(list_interfaces().values())
if interfaces[interface] != 'WIRELESS':
raise HardwareIncompatibilityError(f"Interface {interface} is not a wireless interface: {interfaces}")
SysCommand(f"iwctl station {interface} scan")
if '_WIFI' not in storage:
storage['_WIFI'] = {}
if interface not in storage['_WIFI']:
storage['_WIFI'][interface] = {}
storage['_WIFI'][interface]['scanning'] = True
# TODO: Full WiFi experience might get evolved in the future, pausing for now 2021-01-25
def get_wireless_networks(interface):
# TODO: Make this oneliner pritter to check if the interface is scanning or not.
if '_WIFI' not in storage or interface not in storage['_WIFI'] or storage['_WIFI'][interface].get('scanning', False) is False:
import time
wireless_scan(interface)
time.sleep(5)
for line in SysCommand(f"iwctl station {interface} get-networks"):
print(line)
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