github.com/anchore/syft@v1.4.2-0.20240516191711-1bec1fc5d397/syft/pkg/cataloger/kernel/package.go (about)

     1  package kernel
     2  
     3  import (
     4  	"strings"
     5  
     6  	"github.com/anchore/packageurl-go"
     7  	"github.com/anchore/syft/syft/file"
     8  	"github.com/anchore/syft/syft/pkg"
     9  )
    10  
    11  const linuxKernelPackageName = "linux-kernel"
    12  
    13  func newLinuxKernelPackage(metadata pkg.LinuxKernel, archiveLocation file.Location) pkg.Package {
    14  	p := pkg.Package{
    15  		Name:      linuxKernelPackageName,
    16  		Version:   metadata.Version,
    17  		Locations: file.NewLocationSet(archiveLocation.WithAnnotation(pkg.EvidenceAnnotationKey, pkg.PrimaryEvidenceAnnotation)),
    18  		PURL:      packageURL(linuxKernelPackageName, metadata.Version),
    19  		Type:      pkg.LinuxKernelPkg,
    20  		Metadata:  metadata,
    21  	}
    22  
    23  	p.SetID()
    24  
    25  	return p
    26  }
    27  
    28  func newLinuxKernelModulePackage(metadata pkg.LinuxKernelModule, kmLocation file.Location) pkg.Package {
    29  	p := pkg.Package{
    30  		Name:      metadata.Name,
    31  		Version:   metadata.Version,
    32  		Locations: file.NewLocationSet(kmLocation.WithAnnotation(pkg.EvidenceAnnotationKey, pkg.PrimaryEvidenceAnnotation)),
    33  		Licenses:  pkg.NewLicenseSet(pkg.NewLicensesFromLocation(kmLocation, metadata.License)...),
    34  		PURL:      packageURL(metadata.Name, metadata.Version),
    35  		Type:      pkg.LinuxKernelModulePkg,
    36  		Metadata:  metadata,
    37  	}
    38  
    39  	p.SetID()
    40  
    41  	return p
    42  }
    43  
    44  // packageURL returns the PURL for the specific Kernel package (see https://github.com/package-url/purl-spec)
    45  func packageURL(name, version string) string {
    46  	var namespace string
    47  
    48  	fields := strings.SplitN(name, "/", 2)
    49  	if len(fields) > 1 {
    50  		namespace = fields[0]
    51  		name = fields[1]
    52  	}
    53  
    54  	return packageurl.NewPackageURL(
    55  		packageurl.TypeGeneric,
    56  		namespace,
    57  		name,
    58  		version,
    59  		nil,
    60  		"",
    61  	).ToString()
    62  }