Can't access fact that contains `.` in key

[morsik]

Describe the Bug

Can't access fact that contains . in key

Expected Behavior

Data should be replied correctly, because network interface names contains dots when used VLANs.

Steps to Reproduce

Try to access IP from VLAN interface because those contain dot.

root@host ~ # facter networking.interfaces.ens1f0.ip
213.X.Y.Z
root@host ~ # facter networking.interfaces.ens1f0.4001.ip

root@host ~ # facter networking.interfaces."ens1f0.4001".ip

root@host ~ # facter 'networking.interfaces."ens1f0.4001".ip'

root@host ~ #

But this data actually exists!

# facter networking.interfaces
{
  eno8303 => {
    mac => "c4:cb:e1:XX:YY:ZZ",
    mtu => 1500
  },
  eno8403 => {
    mac => "c4:cb:e1:XX:YY:ZZ",
    mtu => 1500
  },
  ens1f0 => {
    bindings => [
      {
        address => "213.X.Y.Z",
        netmask => "255.255.255.128",
        network => "213.X.Y.Z"
      }
    ],
    ip => "213.X.Y.Z",
    mac => "6c:fe:54:XX:YY:ZZ",
    mtu => 1500,
    netmask => "255.255.255.128",
    network => "213.X.Y.Z"
  },
  ens1f0.4001 => {
    bindings => [
      {
        address => "10.X.Y.Z",
        netmask => "255.255.0.0",
        network => "10.X.Y.Z"
      }
    ],
    ip => "10.X.Y.Z",
    mac => "6c:fe:54:XX:YY:ZZ"
    mtu => 1400,
    netmask => "255.255.0.0",
    network => "10.X.Y.Z"
  },
  ens1f1 => {
    mac => "6c:fe:54:XX:YY:ZZ",
    mtu => 1500
  },
  lo => {
    bindings => [
      {
        address => "127.0.0.1",
        netmask => "255.0.0.0",
        network => "127.0.0.0"
      }
    ],
    ip => "127.0.0.1",
    mtu => 65536,
    netmask => "255.0.0.0",
    network => "127.0.0.0"
  }
}

Environment

• Version: 7.23.0-1 (from Debian repo)
• Platform: Debian 12

[joshcooper]

Yes, facter 4 has some bugs with dotted notation. The main problem is it naively splits on dots. I have a feature branch here but it needs more work: https://github.com/puppetlabs/facter/compare/main...joshcooper:dots_3447