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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2023 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 luks2_test
import (
"fmt"
"os"
"path/filepath"
"strconv"
"testing"
. "gopkg.in/check.v1"
"github.com/snapcore/snapd/dirs"
"github.com/snapcore/snapd/secboot/luks2"
"github.com/snapcore/snapd/testutil"
)
func Test(t *testing.T) { TestingT(t) }
type luks2Suite struct {
testutil.BaseTest
tmpdir string
mockCryptsetup *testutil.MockCmd
}
var _ = Suite(&luks2Suite{})
func (s *luks2Suite) SetUpTest(c *C) {
s.BaseTest.SetUpTest(c)
dirs.SetRootDir(c.MkDir())
s.tmpdir = dirs.GlobalRootDir
s.mockCryptsetup = testutil.MockCommand(c, "cryptsetup", fmt.Sprintf("cat - > %[1]s/stdout 2>%[1]s/stderr", s.tmpdir))
s.AddCleanup(s.mockCryptsetup.Restore)
}
func (s *luks2Suite) TestKillSlot(c *C) {
err := luks2.KillSlot("/my/device", 123, []byte("some-key"))
c.Check(err, IsNil)
c.Check(s.mockCryptsetup.Calls(), DeepEquals, [][]string{
{"cryptsetup", "luksKillSlot", "--type", "luks2", "--key-file", "-", "/my/device", "123"},
})
c.Check(filepath.Join(s.tmpdir, "stdout"), testutil.FileEquals, "some-key")
c.Check(filepath.Join(s.tmpdir, "stderr"), testutil.FileEquals, "")
}
func (s *luks2Suite) TestAddKeyHappy(c *C) {
err := os.MkdirAll(filepath.Join(s.tmpdir, "run"), 0755)
c.Assert(err, IsNil)
mockCryptsetup := testutil.MockCommand(c, "cryptsetup", fmt.Sprintf(`
cat - > %[1]s/stdout 2>%[1]s/stderr
`, s.tmpdir))
defer mockCryptsetup.Restore()
err = luks2.AddKey("/my/device", []byte("old-key"), []byte("new-key"), nil)
c.Check(err, IsNil)
c.Check(mockCryptsetup.Calls(), HasLen, 1)
lenExisting := strconv.Itoa(len("old-key"))
c.Check(mockCryptsetup.Calls(), DeepEquals, [][]string{
{"cryptsetup", "luksAddKey", "--type", "luks2", "--key-file", "-", "--keyfile-size", lenExisting, "--batch-mode", "--pbkdf", "argon2i", "/my/device", "-"},
})
c.Check(filepath.Join(s.tmpdir, "stdout"), testutil.FileEquals, "old-keynew-key")
c.Check(filepath.Join(s.tmpdir, "stderr"), testutil.FileEquals, "")
}
func (s *luks2Suite) TestAddKeyBadCryptsetup(c *C) {
err := os.MkdirAll(filepath.Join(s.tmpdir, "run"), 0755)
c.Assert(err, IsNil)
mockCryptsetup := testutil.MockCommand(c, "cryptsetup", "echo some-error; exit 1")
defer mockCryptsetup.Restore()
err = luks2.AddKey("/my/device", []byte("old-key"), []byte("new-key"), nil)
c.Check(err, ErrorMatches, "cryptsetup failed with: some-error")
}
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