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label_test.go
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label_test.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2018 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package selinux_test
import (
"fmt"
"io/ioutil"
"path/filepath"
"gopkg.in/check.v1"
"github.com/snapcore/snapd/selinux"
"github.com/snapcore/snapd/testutil"
)
type labelSuite struct {
path string
}
var _ = check.Suite(&labelSuite{})
func (l *labelSuite) SetUpTest(c *check.C) {
l.path = filepath.Join(c.MkDir(), "foo")
ioutil.WriteFile(l.path, []byte("foo"), 0644)
}
func (l *labelSuite) TestVerifyHappyOk(c *check.C) {
cmd := testutil.MockCommand(c, "matchpathcon", "")
defer cmd.Restore()
ok, err := selinux.Verifypathcon(l.path)
c.Assert(err, check.IsNil)
c.Assert(ok, check.Equals, true)
c.Assert(cmd.Calls(), check.DeepEquals, [][]string{
{"matchpathcon", "-V", l.path},
})
}
func (l *labelSuite) TestVerifyFailGibberish(c *check.C) {
cmd := testutil.MockCommand(c, "matchpathcon", "echo gibberish; exit 1 ")
defer cmd.Restore()
ok, err := selinux.Verifypathcon(l.path)
c.Assert(err, check.ErrorMatches, "exit status 1")
c.Assert(ok, check.Equals, false)
}
func (l *labelSuite) TestVerifyFailStatus(c *check.C) {
cmd := testutil.MockCommand(c, "matchpathcon", "echo gibberish; exit 5 ")
defer cmd.Restore()
ok, err := selinux.Verifypathcon(l.path)
c.Assert(err, check.ErrorMatches, "exit status 5")
c.Assert(ok, check.Equals, false)
}
func (l *labelSuite) TestVerifyFailNoPath(c *check.C) {
cmd := testutil.MockCommand(c, "matchpathcon", ``)
defer cmd.Restore()
ok, err := selinux.Verifypathcon("does-not-exist")
c.Assert(err, check.ErrorMatches, ".* does-not-exist: no such file or directory")
c.Assert(ok, check.Equals, false)
}
func (l *labelSuite) TestVerifyFailNoTool(c *check.C) {
ok, err := selinux.Verifypathcon(l.path)
c.Assert(err, check.ErrorMatches, `exec: "matchpathcon": executable file not found in \$PATH`)
c.Assert(ok, check.Equals, false)
}
func (l *labelSuite) TestVerifyHappyMismatch(c *check.C) {
cmd := testutil.MockCommand(c, "matchpathcon", fmt.Sprintf(`
echo %s has context unconfined_u:object_r:user_home_t:s0, should be unconfined_u:object_r:snappy_home_t:s0
exit 1`, l.path))
defer cmd.Restore()
ok, err := selinux.Verifypathcon(l.path)
c.Assert(err, check.IsNil)
c.Assert(ok, check.Equals, false)
}
func (l *labelSuite) TestRestoreHappy(c *check.C) {
cmd := testutil.MockCommand(c, "restorecon", "")
defer cmd.Restore()
err := selinux.Restorecon(l.path, false)
c.Assert(err, check.IsNil)
c.Assert(cmd.Calls(), check.DeepEquals, [][]string{
{"restorecon", l.path},
})
cmd.ForgetCalls()
err = selinux.Restorecon(l.path, true)
c.Assert(err, check.IsNil)
c.Assert(cmd.Calls(), check.DeepEquals, [][]string{
{"restorecon", "-R", l.path},
})
}
func (l *labelSuite) TestRestoreFail(c *check.C) {
err := selinux.Restorecon(l.path, false)
c.Assert(err, check.ErrorMatches, `exec: "restorecon": executable file not found in \$PATH`)
cmd := testutil.MockCommand(c, "restorecon", "exit 1")
defer cmd.Restore()
err = selinux.Restorecon(l.path, false)
c.Assert(err, check.ErrorMatches, "exit status 1")
err = selinux.Restorecon("does-not-exist", false)
c.Assert(err, check.ErrorMatches, ".* does-not-exist: no such file or directory")
}