classic-support interface sets special permissions for the classic snap, effectively giving device ownership to its connected snaps.
This interface is intended to be used only with Ubuntu Core.
Requires snapd version 2.23+.
See Interface management and Supported interfaces for further details on how interfaces are used.
The test code can be found in the snapd repository: https://github.com/snapcore/snapd/blob/master/interfaces/builtin/classic_support_test.go
The source code for the interface is in the snapd repository: https://github.com/snapcore/snapd/blob/master/interfaces/builtin/classic_support.go