github.com/Prakhar-Agarwal-byte/moby@v0.0.0-20231027092010-a14e3e8ab87e/pkg/parsers/kernel/kernel_unix.go (about)

     1  //go:build linux || freebsd || openbsd
     2  
     3  package kernel // import "github.com/Prakhar-Agarwal-byte/moby/pkg/parsers/kernel"
     4  
     5  import (
     6  	"context"
     7  
     8  	"github.com/containerd/log"
     9  	"golang.org/x/sys/unix"
    10  )
    11  
    12  // GetKernelVersion gets the current kernel version.
    13  func GetKernelVersion() (*VersionInfo, error) {
    14  	uts, err := uname()
    15  	if err != nil {
    16  		return nil, err
    17  	}
    18  
    19  	// Remove the \x00 from the release for Atoi to parse correctly
    20  	return ParseRelease(unix.ByteSliceToString(uts.Release[:]))
    21  }
    22  
    23  // CheckKernelVersion checks if current kernel is newer than (or equal to)
    24  // the given version.
    25  func CheckKernelVersion(k, major, minor int) bool {
    26  	if v, err := GetKernelVersion(); err != nil {
    27  		log.G(context.TODO()).Warnf("error getting kernel version: %s", err)
    28  	} else {
    29  		if CompareKernelVersion(*v, VersionInfo{Kernel: k, Major: major, Minor: minor}) < 0 {
    30  			return false
    31  		}
    32  	}
    33  	return true
    34  }