Example #1
0
// InitLabels returns the process label and file labels to be used within
// the container.  A list of options can be passed into this function to alter
// the labels.  The labels returned will include a random MCS String, that is
// guaranteed to be unique.
func InitLabels(options []string) (string, string, error) {
	if !selinux.SelinuxEnabled() {
		return "", "", nil
	}
	processLabel, mountLabel := selinux.GetLxcContexts()
	if processLabel != "" {
		pcon := selinux.NewContext(processLabel)
		mcon := selinux.NewContext(mountLabel)
		for _, opt := range options {
			if opt == "disable" {
				return "", "", nil
			}
			if i := strings.Index(opt, ":"); i == -1 {
				return "", "", fmt.Errorf("Bad SELinux Option")
			}
			con := strings.SplitN(opt, ":", 2)
			pcon[con[0]] = con[1]
			if con[0] == "level" || con[0] == "user" {
				mcon[con[0]] = con[1]
			}
		}
		processLabel = pcon.Get()
		mountLabel = mcon.Get()
	}
	return processLabel, mountLabel, nil
}
Example #2
0
func TestInit(t *testing.T) {
	if selinux.SelinuxEnabled() {
		var testNull []string
		plabel, mlabel, err := InitLabels(testNull)
		if err != nil {
			t.Log("InitLabels Failed")
			t.Fatal(err)
		}
		testDisabled := []string{"disable"}
		plabel, mlabel, err = InitLabels(testDisabled)
		if err != nil {
			t.Log("InitLabels Disabled Failed")
			t.Fatal(err)
		}
		if plabel != "" {
			t.Log("InitLabels Disabled Failed")
			t.Fatal()
		}
		testUser := []string{"user:user_u", "role:user_r", "type:user_t", "level:s0:c1,c15"}
		plabel, mlabel, err = InitLabels(testUser)
		if err != nil {
			t.Log("InitLabels User Failed")
			t.Fatal(err)
		}
		if plabel != "user_u:user_r:user_t:s0:c1,c15" || mlabel != "user_u:object_r:svirt_sandbox_file_t:s0:c1,c15" {
			t.Log("InitLabels User Match Failed")
			t.Log(plabel, mlabel)
			t.Fatal(err)
		}

		testBadData := []string{"user", "role:user_r", "type:user_t", "level:s0:c1,c15"}
		plabel, mlabel, err = InitLabels(testBadData)
		if err == nil {
			t.Log("InitLabels Bad Failed")
			t.Fatal(err)
		}
	}
}
Example #3
0
// Tell the kernel the label for all files to be created
func SetFileCreateLabel(fileLabel string) error {
	if selinux.SelinuxEnabled() {
		return selinux.Setfscreatecon(fileLabel)
	}
	return nil
}
Example #4
0
// SetFileLabel modifies the "path" label to the specified file label
func SetFileLabel(path string, fileLabel string) error {
	if selinux.SelinuxEnabled() && fileLabel != "" {
		return selinux.Setfilecon(path, fileLabel)
	}
	return nil
}
Example #5
0
// Init initialises the labeling system
func Init() {
	selinux.SelinuxEnabled()
}