// 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
}
func TestSELinux(t *testing.T) {
var (
err error
plabel, flabel string
)
if selinux.SelinuxEnabled() {
t.Log("Enabled")
plabel, flabel = selinux.GetLxcContexts()
t.Log(plabel)
t.Log(flabel)
selinux.FreeLxcContexts(plabel)
plabel, flabel = selinux.GetLxcContexts()
t.Log(plabel)
t.Log(flabel)
selinux.FreeLxcContexts(plabel)
t.Log("getenforce ", selinux.SelinuxGetEnforce())
t.Log("getenforcemode ", selinux.SelinuxGetEnforceMode())
pid := os.Getpid()
t.Logf("PID:%d MCS:%s\n", pid, selinux.IntToMcs(pid, 1023))
err = selinux.Setfscreatecon("unconfined_u:unconfined_r:unconfined_t:s0")
if err == nil {
t.Log(selinux.Getfscreatecon())
} else {
t.Log("setfscreatecon failed", err)
t.Fatal(err)
}
err = selinux.Setfscreatecon("")
if err == nil {
t.Log(selinux.Getfscreatecon())
} else {
t.Log("setfscreatecon failed", err)
t.Fatal(err)
}
t.Log(selinux.Getpidcon(1))
} else {
t.Log("Disabled")
}
}
func GenLabels(options string) (string, string, error) {
if !selinux.SelinuxEnabled() {
return "", "", nil
}
var err error
processLabel, mountLabel := selinux.GetLxcContexts()
if processLabel != "" {
var (
s = strings.Fields(options)
l = len(s)
)
if l > 0 {
pcon := selinux.NewContext(processLabel)
for i := 0; i < l; i++ {
o := strings.Split(s[i], "=")
pcon[o[0]] = o[1]
}
processLabel = pcon.Get()
mountLabel, err = selinux.CopyLevel(processLabel, mountLabel)
}
}
return processLabel, mountLabel, err
}