Possibility to use other value than yes/no for AllowTCPforwarding

[brnck]

Is your feature request related to a problem? Please describe.
According to the documentation of OpenSSH SSH daemon configuration file AllowTcpForwarding supports few options:

• yes
• no
• all
• local

The role itself only supports yes or no values and gracefully fallbacks to no if value for key.

Describe the solution you'd like
Would be nice if option (not just AllowTcpForwarding) that supports other values besides yes and no would be supported by role as well.

[rndmh3ro]

Hey @brnck,

that's a good idea!

However other options besides yes/no are only supported since OpenSSH 6.2, so we need to make sure it works on older versions, too. See here: https://www.openssh.com/releasenotes.html (crtl-f AllowTcpForwarding)

Do you want to create a pull request for this?