90 lines
2.6 KiB
Python
Executable File
90 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Setup a working BATMAN Advanced network
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with systemd-networkd and iwd
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"""
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# Copyright (C) 2021 The Authors
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys
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from pathlib import Path
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from shutil import copy
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from dasbus.connection import SystemMessageBus
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NETWORKD_CONFIGS = "/usr/share/naxalnet/networkd"
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NETWORKD_VOLATILE_DIR = "/run/systemd/network"
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RESOLVED_STUB_RESOLVE = "/run/systemd/resolve/stub-resolv.conf"
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RESOLV_CONF = "/etc/resolv.conf"
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# Copy networkd configs to volatile dir.
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# See man:systemd.networkm(5)
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try:
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print("Copying network config files")
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dest = Path(NETWORKD_VOLATILE_DIR)
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src = Path(NETWORKD_CONFIGS)
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# Create the volatile directory if it doesn't exist
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dest.mkdir(parents=True, exist_ok=True)
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# Copy all files in src to dest
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for i in src.iterdir():
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copy(i, dest)
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except:
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sys.exit("An error occured while copying network files")
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# Symlink resolvd.conf to systemd's stub-resolvd.conf
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# This is needed for DNS resolution to work.
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# see https://wiki.archlinux.org/title/Systemd-resolved#DNS
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try:
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print("Checking resolv.conf")
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r = Path(RESOLV_CONF)
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if r.exists():
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print(r, "already exists. Removing it")
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r.unlink()
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print("Linking resolv.conf")
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r.symlink_to(RESOLVED_STUB_RESOLVE)
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except:
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sys.exit("An error occured while linking resolv.conf")
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# Now, the iwd part
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try:
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# connect to the System bus
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bus = SystemMessageBus()
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# iwd proxy
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iwd = bus.get_proxy("net.connman.iwd", "/")
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# Get list of all devices
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print("Finding connected devices")
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objects = iwd.GetManagedObjects()
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devices = []
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for name, obj in objects.items():
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if "net.connman.iwd.Device" in obj:
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# add all devices to the list
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print("Found device:", obj["net.connman.iwd.Device"]["Name"])
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devices.append(name)
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# TODO: On first devices, start ad-hoc
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# If there is a second device, start AP
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# in it
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except:
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sys.exit("An error occured while communicating with iwd")
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print("Bye")
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