package fde implements helper used by low level parts like secboot in snap-bootstrap and high level parts like DeviceManager in snapd.

DriversTreeDir returns the directory for a given kernel and revision under rootdir.

EnsureKernelDriversTree creates a drivers tree that can include modules/fw from kernel-modules components.

InfoFromKernelYaml reads the provided kernel metadata.

KernelVersionFromModulesDir returns the kernel version for a mounted kernel snap (this would be the output if "uname -r" for a running kernel).

NeedsKernelDriversTree returns true if we need a kernel drivers tree for this model.

ReadInfo reads the kernel specific metadata from meta/kernel.yaml in the snap root directory if the file exists.

RemoveKernelDriversTree cleans-up the writable kernel tree in snapd data folder, under kernelSubdir/<rev> (kernelSubdir is usually the snap name).

Validate checks whether the given directory contains valid kernel snap metadata and a matching content.

ValidAssetName is a regular expression matching valid asset name.

ModulesCompMountPoints contains mount points for a component plus its name.

MountPoints describes mount points for a snap or a component.