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moby--moby/pkg/chrootarchive/archive_windows.go
Brian Goff 3029e765e2 Add chroot for tar packing operations
Previously only unpack operations were supported with chroot.
This adds chroot support for packing operations.
This prevents potential breakouts when copying data from a container.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2019-06-03 09:45:29 -07:00

29 lines
1 KiB
Go

package chrootarchive // import "github.com/docker/docker/pkg/chrootarchive"
import (
"io"
"github.com/docker/docker/pkg/archive"
"github.com/docker/docker/pkg/longpath"
)
// chroot is not supported by Windows
func chroot(path string) error {
return nil
}
func invokeUnpack(decompressedArchive io.ReadCloser,
dest string,
options *archive.TarOptions, root string) error {
// Windows is different to Linux here because Windows does not support
// chroot. Hence there is no point sandboxing a chrooted process to
// do the unpack. We call inline instead within the daemon process.
return archive.Unpack(decompressedArchive, longpath.AddPrefix(dest), options)
}
func invokePack(srcPath string, options *archive.TarOptions, root string) (io.ReadCloser, error) {
// Windows is different to Linux here because Windows does not support
// chroot. Hence there is no point sandboxing a chrooted process to
// do the pack. We call inline instead within the daemon process.
return archive.TarWithOptions(srcPath, options)
}