dotcloud/docker

//go:build linux || freebsd || openbsd

package kernel // import "github.com/docker/docker/pkg/parsers/kernel"

import (
    "context"

    "github.com/containerd/log"
    "golang.org/x/sys/unix"
)

// GetKernelVersion gets the current kernel version.
func GetKernelVersion() (*VersionInfo, error) {
    uts, err := uname()
    if err != nil {
        return nil, err
    }

    // Remove the \x00 from the release for Atoi to parse correctly
    return ParseRelease(unix.ByteSliceToString(uts.Release[:]))
}

// CheckKernelVersion checks if current kernel is newer than (or equal to)
// the given version.
func CheckKernelVersion(k, major, minor int) bool {
    if v, err := GetKernelVersion(); err != nil {
        log.G(context.TODO()).Warnf("error getting kernel version: %s", err)
    } else {
        if CompareKernelVersion(*v, VersionInfo{Kernel: k, Major: major, Minor: minor}) < 0 {
            return false
        }
    }
    return true
}