Add wgconf command to generate a Wireguard config file.

[oskirby]

Description

This adds a command line tool to render the current device configuration in the form of a Wireguard configuration file that can be used by a 3rd party Wireguard client.

Usage is as follows:

[user@example ~]$ ./src/mozillavpn wgconf
[Interface]
PrivateKey = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
Address = 10.112.171.249/32, fc00:bbbb:bbbb:bb01::31:abf8/128
DNS = 10.64.0.1, fc00:bbbb:bbbb:bb01::1

[Peer]
PublicKey = Hzf1JH0UERBRNxBSpTvGPZAREa93LoHtPKsJMwdcrV0=
Endpoint = 89.45.224.41:3406
AllowedIPs = 10.64.0.1/32, fc00:bbbb:bbbb:bb01::1/128, 10.124.0.0/20, 240.0.0.0/4, 208.0.0.0/4, 200.0.0.0/5, 196.0.0.0/6, 194.0.0.0/7, 193.0.0.0/8, 192.0.0.0/9, 192.192.0.0/10, 192.128.0.0/11, 192.176.0.0/12, 192.160.0.0/13, 192.172.0.0/14, 192.170.0.0/15, 192.169.0.0/16, 128.0.0.0/3, 176.0.0.0/4, 160.0.0.0/5, 168.0.0.0/6, 174.0.0.0/7, 173.0.0.0/8, 172.128.0.0/9, 172.64.0.0/10, 172.32.0.0/11, 172.0.0.0/12, 64.0.0.0/2, 32.0.0.0/3, 16.0.0.0/4, 0.0.0.0/5, 12.0.0.0/6, 8.0.0.0/7, 11.0.0.0/8, ::/1, 8000::/2, c000::/3, e000::/4, f000::/5, f800::/6, fe00::/8

[user@example ~]$

Reference

Github issue #3165 (VPN-1988)

Checklist

• My code follows the style guidelines for this project
• I have not added any packages that contain high risk or unknown licenses (GPL, LGPL, MPL, etc. consult with DevOps if in question)
• I have performed a self review of my own code
• I have commented my code PARTICULARLY in hard to understand areas
• I have added thorough tests where needed

[strseb]

Ship it!

[codecov-commenter]

Codecov Report

Base: 28.16% // Head: 16.83% // Decreases project coverage by -11.34% ⚠️

Coverage data is based on head (1ae07be) compared to base (c957727).
Patch has no changes to coverable lines.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #5817       +/-   ##
===========================================
- Coverage   28.16%   16.83%   -11.34%     
===========================================
  Files         342       12      -330     
  Lines       22721      505    -22216     
  Branches    12277      288    -11989     
===========================================
- Hits         6400       85     -6315     
+ Misses      10484      228    -10256     
+ Partials     5837      192     -5645     

Flag	Coverage Δ
functional_tests	?
linux_unit_tests	?
lottie_tests	16.83% <ø> (-6.15%)	⬇️
macos_unit_tests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
lottie/tests/unit/testwindow.cpp	6.66% <0.00%> (-20.84%)	⬇️
lottie/tests/unit/testnavigator.cpp	16.66% <0.00%> (-20.84%)	⬇️
lottie/lib/lottieprivatewindow.cpp	45.61% <0.00%> (-13.81%)	⬇️
lottie/tests/unit/main.cpp	33.33% <0.00%> (-12.13%)	⬇️
lottie/lib/lottieprivatedocument.cpp	62.50% <0.00%> (-8.93%)	⬇️
lottie/tests/unit/testdocument.cpp	7.40% <0.00%> (-5.83%)	⬇️
lottie/lib/lottieprivate.cpp	7.76% <0.00%> (-1.74%)	⬇️
lottie/lib/lottieprivatewindow.h	77.77% <0.00%> (-1.17%)	⬇️
src/apps/vpn/command.cpp
src/apps/vpn/controller.h
... and 329 more

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[strseb]

Okay big fan, on 2nd thought - should this give maybe the option to get the config against a new registered device?
Because i'm thinking about i'd run this on my mac to specifically generate a config for a device that cannot run the client, i.e a router, tv etc :)

[oskirby]

@strseb I agree, that sounds even better.

[Gela]

Nice, thank you!

Is there a document somewhere for command line arguments or anywhere good we should update to mention this addition?

[oskirby]

@Gela we don't have any substantive documentation on the command line arguments to the VPN client and this is definitely something that should be improved upon. We do have some stale issues about this lack of documentation (Github issue #962/JIRA ticket VPN-174)