improved README.md

And added a new argument (not implemented) in scripts.py

README.md

@@ -2,7 +2,9 @@
 
 **naxalnet** is a program to create a wireless mesh network for
 communicating with each other. It can be useful during an
-[internet shutdown][], or to join online classes with a group of laptops.
+[internet shutdown](#internet-shutdown), or to join
+[online classes](#online-class-in-remote-areas) with a group
+of laptops.
 It uses [B.A.T.M.A.N. Advanced][batman-adv], an implementation
 of the B.A.T.M.A.N. routing protocol to communicate with peers.
 
@@ -163,13 +165,27 @@ sudo systemctl start NetworkManager.service
 
 ## How it works
 
-The program naxalnet copies some `systemd-networkd` configuration files
-into networkd's runtime configuration directory. It uses iwd to start
-an ad-hoc network named "HelloWorld". See the
-[systemd-networkd](systemd-networkd) directory
-to see how systemd-networkd configures the network. You can use
-services like [IPFS][], [Jami][], [Secure Scuttlebutt][ssb]
+naxalnet uses iwd to start an ad-hoc network and configures
+systemd-networkd to setup a BATMAN Advanced network.
+Read the code to learn the details.
+See [systemd-networkd](systemd-networkd) to see how systemd-networkd
+configures the network.
+
+## Use cases
+
+### Online class in remote areas
+
+naxalnet can be used to share connections in remote areas.
+You need atleast one device with internet access.
+
+### Internet shutdown
+
+You can communicate with neighbouring devices running naxalnet,
+using services like [IPFS][], [Jami][], [Secure Scuttlebutt][ssb]
 and others which can work on an intranet.
+They need to be installed on your device _before_ your friendly
+totalitarian administration orders an [internet shutdown][], since you
+cannot download and install them during a shutdown.
 
 ## Uninstalling
 
@@ -198,13 +214,12 @@ available, consider using them instead of naxalnet.
 
 ## License
 
-This program is [free/libre/swatantra][free-sw] software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+naxalnet is [free/libre/swatantra][free-sw] software: you can
+redistribute it and/or modify it under the terms of the GNU General
+Public License as published by the Free Software Foundation, either
+version 3 of the License, or (at your option) any later version.
 
-See [LICENSE](LICENSE) for the complete version of the
-license.
+See [LICENSE](LICENSE) for the complete version of the license.
 
 [batman-adv]: https://www.open-mesh.org/projects/batman-adv/wiki
 [internet shutdown]: https://internetshutdowns.in

naxalnet/scripts.py

@@ -23,8 +23,8 @@ with systemd-networkd and iwd
 import sys
 from pathlib import Path
 from shutil import copy
-from dasbus.error import DBusError
 from argparse import ArgumentParser
+from dasbus.error import DBusError
 from naxalnet.iwd import IWD, Device, Adapter
 
 NETWORKD_CONFIGS = "/usr/share/naxalnet/networkd"
@@ -56,6 +56,11 @@ def copy_files():
 
 
 def setup_devices(args):
+    """
+    Setup wifi interfaces using iwd
+    This function should be called every time an interface
+    is connected or removed
+    """
     iwd = IWD()
     devices = iwd.get_devices()
     adhoc_devices = []
@@ -148,7 +153,14 @@ def parse_args():
     parser.add_argument(
         "--adhoc-name", "-a", type=str, default=ADHOC_NAME, help="name of adhoc network"
     )
-    # TODO: implement verbose
+    # TODO: print info about wifi network from config and args
+    parser.add_argument(
+        "--print-wifi",
+        action="store_true",
+        default=False,
+        help="prints the ssid and password of the WiFi network and exit",
+    )
+    # TODO: implement --verbose
     parser.add_argument(
         "-v",
         "--verbose",