T3202: Enable wireguard debug messages (backport #3679)

[mergify]

Change Summary

Added ability to enable or disable dynamic debugging for Wireguard on demand

set system option kernel debug wireguard

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

• https://vyos.dev/T3202

Related PR(s)

Component(s) name

system option

Proposed changes

How to test

set system option kernel debug wireguard
commit

# configure wireguard interface
set interfaces wireguard wg01 address '10.1.0.1/30'
set interfaces wireguard wg01 description 'VPN-to-wg02'
set interfaces wireguard wg01 peer to-wg02 address '192.0.2.1'
set interfaces wireguard wg01 peer to-wg02 allowed-ips '192.168.2.0/24'
set interfaces wireguard wg01 peer to-wg02 port '51820'
set interfaces wireguard wg01 peer to-wg02 public-key 'XMrlPykaxhdAAiSjhtPlvi30NVkvLQliQuKP7AI7CyI='
set interfaces wireguard wg01 per-client-thread
set interfaces wireguard wg01 port '51820'
set interfaces wireguard wg01 private-key 'cNcQKm4KTmtOFyUp+THWKWs50rAh/3il9YAUvSHzInE='
set protocols static route 192.168.2.0/24 interface wg01
commit

now dynamic debugging messages can be viewed by running journalctl

Smoketest result

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

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This is an automatic backport of pull request #3679 done by [Mergify](https://mergify.com).

[github-actions]

👍
No issues in PR Title / Commit Title

[c-po]

Needs to be rebased after #3709 is merged

[github-actions]

This pull request has conflicts, please resolve those before we can evaluate the pull request.