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This PR adds DependencyOf relationships when ELF packages have been discovered by the binary cataloger. The discovered file.Executable type has a []ImportedLibraries that's read from the file when discovered by syft. By mapping these imported libraries back to the package collection, syft is able to create relationships showing which packages are dependencies of other packages by just reading metadata from the ELF executable. --------- Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com> Signed-off-by: Brian Ebarb <ebarb.brian@sers.noreply.github.com> Co-authored-by: Alex Goodman <wagoodman@users.noreply.github.com>
106 lines
3.0 KiB
Go
106 lines
3.0 KiB
Go
package binary
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import (
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"path"
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"testing"
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"github.com/anchore/syft/syft/artifact"
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"github.com/anchore/syft/syft/file"
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"github.com/anchore/syft/syft/pkg"
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)
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func Test_newShareLibIndex(t *testing.T) {
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tests := []struct {
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name string
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resolver file.Resolver
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coordinateIndex map[file.Coordinates]file.Executable
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packages []pkg.Package
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prexistingRelationships []artifact.Relationship
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}{
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{
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name: "constructor",
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resolver: file.NewMockResolverForPaths(),
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coordinateIndex: map[file.Coordinates]file.Executable{},
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packages: []pkg.Package{},
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prexistingRelationships: []artifact.Relationship{},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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accessor := newAccesor(tt.packages, tt.coordinateIndex, tt.prexistingRelationships)
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sharedLibraryIndex := newShareLibIndex(tt.resolver, accessor)
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if sharedLibraryIndex == nil {
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t.Errorf("newShareLibIndex() = %v, want non-nil", sharedLibraryIndex)
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}
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})
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}
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}
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func Test_sharedLibraryIndex_build(t *testing.T) {
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glibcCoordinate := file.NewCoordinates("/usr/lib64/libc.so.6", "")
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secondGlibcCoordinate := file.NewCoordinates("/usr/local/lib64/libc.so.6", "")
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glibcExecutable := file.Executable{
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Format: "elf",
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HasExports: true,
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HasEntrypoint: true,
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ImportedLibraries: []string{
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path.Base(glibcCoordinate.RealPath),
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path.Base(secondGlibcCoordinate.RealPath),
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},
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}
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glibCPackage := pkg.Package{
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Name: "glibc",
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Version: "2.28-236.el8_9.12",
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Locations: file.NewLocationSet(
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file.NewLocation(glibcCoordinate.RealPath),
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file.NewLocation("some/other/path"),
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),
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Type: pkg.RpmPkg,
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Metadata: pkg.RpmDBEntry{
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Files: []pkg.RpmFileRecord{
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{
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Path: glibcCoordinate.RealPath,
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},
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{
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Path: "some/other/path",
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},
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},
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},
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}
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tests := []struct {
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name string
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resolver file.Resolver
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coordinateIndex map[file.Coordinates]file.Executable
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packages []pkg.Package
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prexistingRelationships []artifact.Relationship
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}{
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{
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name: "build with locations and packages",
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resolver: file.NewMockResolverForPaths([]string{
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glibcCoordinate.RealPath,
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secondGlibcCoordinate.RealPath,
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}...),
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coordinateIndex: map[file.Coordinates]file.Executable{
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glibcCoordinate: glibcExecutable,
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secondGlibcCoordinate: glibcExecutable,
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},
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packages: []pkg.Package{
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glibCPackage,
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},
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prexistingRelationships: []artifact.Relationship{},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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accessor := newAccesor(tt.packages, tt.coordinateIndex, tt.prexistingRelationships)
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sharedLibraryIndex := newShareLibIndex(tt.resolver, accessor)
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sharedLibraryIndex.build(tt.resolver, accessor)
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pkgs := sharedLibraryIndex.owningLibraryPackage(path.Base(glibcCoordinate.RealPath))
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if pkgs.PackageCount() < 1 {
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t.Errorf("owningLibraryPackage() = %v, want non-empty", pkgs)
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}
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})
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}
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}
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