github.com/kaisenlinux/docker.io@v0.0.0-20230510090727-ea55db55fac7/engine/daemon/graphdriver/graphtest/testutil_unix.go (about)

     1  //go:build linux || freebsd
     2  // +build linux freebsd
     3  
     4  package graphtest // import "github.com/docker/docker/daemon/graphdriver/graphtest"
     5  
     6  import (
     7  	"os"
     8  	"syscall"
     9  	"testing"
    10  
    11  	contdriver "github.com/containerd/continuity/driver"
    12  	"github.com/docker/docker/daemon/graphdriver"
    13  	"golang.org/x/sys/unix"
    14  	"gotest.tools/v3/assert"
    15  	is "gotest.tools/v3/assert/cmp"
    16  )
    17  
    18  func verifyFile(t testing.TB, path string, mode os.FileMode, uid, gid uint32) {
    19  	fi, err := os.Stat(path)
    20  	assert.NilError(t, err)
    21  
    22  	actual := fi.Mode()
    23  	assert.Check(t, is.Equal(mode&os.ModeType, actual&os.ModeType), path)
    24  	assert.Check(t, is.Equal(mode&os.ModePerm, actual&os.ModePerm), path)
    25  	assert.Check(t, is.Equal(mode&os.ModeSticky, actual&os.ModeSticky), path)
    26  	assert.Check(t, is.Equal(mode&os.ModeSetuid, actual&os.ModeSetuid), path)
    27  	assert.Check(t, is.Equal(mode&os.ModeSetgid, actual&os.ModeSetgid), path)
    28  
    29  	if stat, ok := fi.Sys().(*syscall.Stat_t); ok {
    30  		assert.Check(t, is.Equal(uid, stat.Uid), path)
    31  		assert.Check(t, is.Equal(gid, stat.Gid), path)
    32  	}
    33  }
    34  
    35  func createBase(t testing.TB, driver graphdriver.Driver, name string) {
    36  	// We need to be able to set any perms
    37  	oldmask := unix.Umask(0)
    38  	defer unix.Umask(oldmask)
    39  
    40  	err := driver.CreateReadWrite(name, "", nil)
    41  	assert.NilError(t, err)
    42  
    43  	dirFS, err := driver.Get(name, "")
    44  	assert.NilError(t, err)
    45  	defer driver.Put(name)
    46  
    47  	subdir := dirFS.Join(dirFS.Path(), "a subdir")
    48  	assert.NilError(t, dirFS.Mkdir(subdir, 0705|os.ModeSticky))
    49  	assert.NilError(t, dirFS.Lchown(subdir, 1, 2))
    50  
    51  	file := dirFS.Join(dirFS.Path(), "a file")
    52  	err = contdriver.WriteFile(dirFS, file, []byte("Some data"), 0222|os.ModeSetuid)
    53  	assert.NilError(t, err)
    54  }
    55  
    56  func verifyBase(t testing.TB, driver graphdriver.Driver, name string) {
    57  	dirFS, err := driver.Get(name, "")
    58  	assert.NilError(t, err)
    59  	defer driver.Put(name)
    60  
    61  	subdir := dirFS.Join(dirFS.Path(), "a subdir")
    62  	verifyFile(t, subdir, 0705|os.ModeDir|os.ModeSticky, 1, 2)
    63  
    64  	file := dirFS.Join(dirFS.Path(), "a file")
    65  	verifyFile(t, file, 0222|os.ModeSetuid, 0, 0)
    66  
    67  	files, err := readDir(dirFS, dirFS.Path())
    68  	assert.NilError(t, err)
    69  	assert.Check(t, is.Len(files, 2))
    70  }