Documentation
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Overview ¶
Package kmod implements a backend which loads kernel modules on behalf of interfaces.
Interfaces may request kernel modules to be loaded by providing snippets via their respective "*Snippet" methods for interfaces.SecurityKMod security system. The snippet should contain a newline-separated list of requested kernel modules. The KMod backend stores all the modules needed by given snap in /etc/modules-load.d/snap.<snapname>.conf file ensuring they are loaded when the system boots and also loads these modules via modprobe. If a snap is uninstalled or respective interface gets disconnected, the corresponding /etc/modules-load.d/ config file gets removed, however no kernel modules are unloaded. This is by design.
Note: this mechanism should not be confused with kernel-module-interface; kmod only loads a well-defined list of modules provided by interface definition and doesn't grant any special permissions related to kernel modules to snaps, in contrast to kernel-module-interface.
Index ¶
Constants ¶
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Variables ¶
This section is empty.
Functions ¶
func LoadModule ¶
Types ¶
type Backend ¶
type Backend struct{}
Backend is responsible for maintaining kernel modules
func (*Backend) Remove ¶
Remove removes modules config file specific to a given snap.
This method should be called after removing a snap.
If the method fails it should be re-tried (with a sensible strategy) by the caller.
func (*Backend) Setup ¶
func (b *Backend) Setup(snapInfo *snap.Info, devMode bool, repo *interfaces.Repository) error
Setup creates a conf file with list of kernel modules required by given snap, writes it in /etc/modules-load.d/ directory and immediately loads the modules using /sbin/modprobe. The devMode is ignored.
If the method fails it should be re-tried (with a sensible strategy) by the caller.
Source Files