[FS#1415] [Enhancement] Consider shorter interface-name prefixes

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Jeff Kletsky (jeffsf) 

Attached to Project - OpenWrt/LEDE Project
Summary - [Enhancement] Consider shorter interface-name prefixes
Task Type - Feature Request
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Very Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Given that `IFNAMSIZ` is typically 16, there are 15 characters available for an interface name.

OpenWRT prepends a prefix that can be at least 6 characters `gre4t-` as an example. 

If one then creates pseudo/virtual-interfaces using VLAN notation, there are only 4 characters available for configuration

`gre4t-ABCD.1234`

As long as this limitation is known, there is no loss of functionality, only utility in the naming. I would have ideally been able to name my tunnels with a more readable indication of where the other endpoint was, for example `portal1` rather than `gt99`.

At some time in the future, shortening these generated prefixes would be welcome. I acknowledge that this likely impacts only a small fraction of advanced users and a change may impact scripts that rely on the generated name.
   

 

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1415