I need some help

[g0lgs]

I am trying to develop a bit of python code that will manipulate my wg0.conf to add extra peers and what I like to do is parse the exising file to find:

• The Address, ListenPort and the effective PublicKey from the [Interface] Section (to create a wg0.conf for a peer)
• All the AllowedIP's from all [Peers] section (so I can determine a free one)

So if I start with:

from wireguard_tools import WireguardConfig

with open("wg0.conf") as fh:
    config = WireguardConfig.from_wgconfig(fh)

How do I access these values ?

[jaharkes]

I thought I documented it, but re-reading the README it looks like what I wrote down isn't terribly helpful.

It is almost easiest to get an interactive python session going and poking around with 'dir(config)' and 'help(config)'.
Basically WireguardConfig (and WireguardPeer) are simple classes with simple members. WireguardConfig contains all the fields of the interface section, so there will be a config.private_key.

The public key is derived from the private one, so you would use config.private_key.public_key() to get the corresponding public key.

config.peers is a list of WireguardPeer class instances, and allowed_ips is a list of ipv4 and ipv6 'interfaces' (address + netmask) so to get a list of all the ipv4s you would have to make some list comprehensions, like the following (untested) snippet,
ipv4s = [ip for peer in config.peers for ip in peer.allowed_ips if isinstance(ip, IPv4Interface)].

[g0lgs]

My experience with python is limited and I do not understand what you snippet is trying to do, I just get

AttributeError: 'WireguardKey' object has no attribute 'allowed_ips'

[g0lgs]

After so fiddling, so far I have got:

from wireguard_tools import WireguardConfig

with open("wg0.conf") as fh:
    config = WireguardConfig.from_wgconfig(fh)

ipv4s = []

for peer in config.peers:
    for ip in config.peers[peer].allowed_ips:
        ipv4s.append(ip)

print(ipv4s)

Which gives me:

[IPv4Interface('10.9.0.2/32'), IPv4Interface('10.9.0.22/32')]
I have NOT fathomed out how to only get the IP4 part without the 'IPv4Interface'

or how to use isinstance() with 'IPv4interface' to only extract IP4's.

[jaharkes]

I think this may be helpful. https://docs.python.org/3/library/ipaddress.html#interface-objects