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79c5ac14b2
* many: remove usages of deprecated io/ioutil package Signed-off-by: Miguel Pires <miguel.pires@canonical.com> * .golangci.yml: remove errcheck ignore rule for io/ioutil Signed-off-by: Miguel Pires <miguel.pires@canonical.com> * run-checks: prevent new usages of io/ioutil Signed-off-by: Miguel Pires <miguel.pires@canonical.com> --------- Signed-off-by: Miguel Pires <miguel.pires@canonical.com>
535 lines
16 KiB
Go
535 lines
16 KiB
Go
// -*- Mode: Go; indent-tabs-mode: t -*-
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/*
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* Copyright (C) 2019 Canonical Ltd
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package bootloader_test
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import (
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"fmt"
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"os"
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"path/filepath"
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"sort"
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. "gopkg.in/check.v1"
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"github.com/snapcore/snapd/boot"
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"github.com/snapcore/snapd/bootloader"
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"github.com/snapcore/snapd/bootloader/lkenv"
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"github.com/snapcore/snapd/logger"
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"github.com/snapcore/snapd/osutil"
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"github.com/snapcore/snapd/osutil/disks"
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"github.com/snapcore/snapd/snap"
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"github.com/snapcore/snapd/snap/snapfile"
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"github.com/snapcore/snapd/snap/snaptest"
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)
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type lkTestSuite struct {
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baseBootenvTestSuite
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}
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var _ = Suite(&lkTestSuite{})
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func (s *lkTestSuite) TestNewLk(c *C) {
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// TODO: update this test when v1 lk uses the kernel command line parameter
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// too
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// no files means bl is not present, but we can still create the bl object
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l := bootloader.NewLk(s.rootdir, nil)
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c.Assert(l, NotNil)
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c.Assert(l.Name(), Equals, "lk")
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present, err := l.Present()
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c.Assert(err, IsNil)
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c.Assert(present, Equals, false)
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// now with files present, the bl is present
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bootloader.MockLkFiles(c, s.rootdir, nil)
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present, err = l.Present()
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c.Assert(err, IsNil)
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c.Assert(present, Equals, true)
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c.Check(bootloader.LkRuntimeMode(l), Equals, true)
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f, err := bootloader.LkConfigFile(l)
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c.Assert(err, IsNil)
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c.Check(f, Equals, filepath.Join(s.rootdir, "/dev/disk/by-partlabel", "snapbootsel"))
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}
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func (s *lkTestSuite) TestNewLkPresentChecksBackupStorageToo(c *C) {
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// no files means bl is not present, but we can still create the bl object
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l := bootloader.NewLk(s.rootdir, &bootloader.Options{
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Role: bootloader.RoleSole,
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})
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c.Assert(l, NotNil)
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c.Assert(l.Name(), Equals, "lk")
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present, err := l.Present()
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c.Assert(err, IsNil)
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c.Assert(present, Equals, false)
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// now mock just the backup env file
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f, err := bootloader.LkConfigFile(l)
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c.Assert(err, IsNil)
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c.Check(f, Equals, filepath.Join(s.rootdir, "/dev/disk/by-partlabel", "snapbootsel"))
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err = os.MkdirAll(filepath.Dir(f), 0755)
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c.Assert(err, IsNil)
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err = os.WriteFile(f+"bak", nil, 0644)
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c.Assert(err, IsNil)
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// now the bootloader is present because the backup exists
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present, err = l.Present()
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c.Assert(err, IsNil)
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c.Assert(present, Equals, true)
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}
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func (s *lkTestSuite) TestNewLkUC20Run(c *C) {
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// no files means bl is not present, but we can still create the bl object
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opts := &bootloader.Options{
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Role: bootloader.RoleRunMode,
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}
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// use ubuntu-boot as the root dir
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l := bootloader.NewLk(boot.InitramfsUbuntuBootDir, opts)
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c.Assert(l, NotNil)
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c.Assert(l.Name(), Equals, "lk")
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present, err := l.Present()
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c.Assert(err, IsNil)
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c.Assert(present, Equals, false)
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// now with files present, the bl is present
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r := bootloader.MockLkFiles(c, s.rootdir, opts)
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defer r()
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present, err = l.Present()
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c.Assert(err, IsNil)
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c.Assert(present, Equals, true)
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c.Check(bootloader.LkRuntimeMode(l), Equals, true)
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f, err := bootloader.LkConfigFile(l)
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c.Assert(err, IsNil)
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// note that the config file here is not relative to ubuntu-boot dir we used
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// when creating the bootloader, it is relative to the rootdir
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c.Check(f, Equals, filepath.Join(s.rootdir, "/dev/disk/by-partuuid", "snapbootsel-partuuid"))
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}
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func (s *lkTestSuite) TestNewLkUC20Recovery(c *C) {
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// no files means bl is not present, but we can still create the bl object
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opts := &bootloader.Options{
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Role: bootloader.RoleRecovery,
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}
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// use ubuntu-seed as the root dir
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l := bootloader.NewLk(boot.InitramfsUbuntuSeedDir, opts)
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c.Assert(l, NotNil)
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c.Assert(l.Name(), Equals, "lk")
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present, err := l.Present()
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c.Assert(err, IsNil)
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c.Assert(present, Equals, false)
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// now with files present, the bl is present
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r := bootloader.MockLkFiles(c, s.rootdir, opts)
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defer r()
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present, err = l.Present()
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c.Assert(err, IsNil)
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c.Assert(present, Equals, true)
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c.Check(bootloader.LkRuntimeMode(l), Equals, true)
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f, err := bootloader.LkConfigFile(l)
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c.Assert(err, IsNil)
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// note that the config file here is not relative to ubuntu-boot dir we used
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// when creating the bootloader, it is relative to the rootdir
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c.Check(f, Equals, filepath.Join(s.rootdir, "/dev/disk/by-partuuid", "snaprecoverysel-partuuid"))
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}
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func (s *lkTestSuite) TestNewLkImageBuildingTime(c *C) {
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for _, role := range []bootloader.Role{bootloader.RoleSole, bootloader.RoleRecovery} {
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opts := &bootloader.Options{
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PrepareImageTime: true,
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Role: role,
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}
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r := bootloader.MockLkFiles(c, s.rootdir, opts)
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defer r()
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l := bootloader.NewLk(s.rootdir, opts)
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c.Assert(l, NotNil)
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c.Check(bootloader.LkRuntimeMode(l), Equals, false)
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f, err := bootloader.LkConfigFile(l)
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c.Assert(err, IsNil)
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switch role {
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case bootloader.RoleSole:
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c.Check(f, Equals, filepath.Join(s.rootdir, "/boot/lk", "snapbootsel.bin"))
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case bootloader.RoleRecovery:
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c.Check(f, Equals, filepath.Join(s.rootdir, "/boot/lk", "snaprecoverysel.bin"))
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}
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}
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}
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func (s *lkTestSuite) TestSetGetBootVar(c *C) {
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tt := []struct {
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role bootloader.Role
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key string
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value string
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}{
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{
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bootloader.RoleSole,
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"snap_mode",
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boot.TryingStatus,
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},
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{
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bootloader.RoleRecovery,
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"snapd_recovery_mode",
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boot.ModeRecover,
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},
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{
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bootloader.RoleRunMode,
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"kernel_status",
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boot.TryStatus,
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},
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}
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for _, t := range tt {
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opts := &bootloader.Options{
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Role: t.role,
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}
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r := bootloader.MockLkFiles(c, s.rootdir, opts)
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defer r()
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l := bootloader.NewLk(s.rootdir, opts)
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bootVars := map[string]string{t.key: t.value}
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l.SetBootVars(bootVars)
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v, err := l.GetBootVars(t.key)
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c.Assert(err, IsNil)
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c.Check(v, HasLen, 1)
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c.Check(v[t.key], Equals, t.value)
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}
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}
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func (s *lkTestSuite) TestExtractKernelAssetsUnpacksBootimgImageBuilding(c *C) {
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for _, role := range []bootloader.Role{bootloader.RoleSole, bootloader.RoleRecovery} {
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opts := &bootloader.Options{
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PrepareImageTime: true,
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Role: role,
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}
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r := bootloader.MockLkFiles(c, s.rootdir, opts)
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defer r()
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l := bootloader.NewLk(s.rootdir, opts)
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c.Assert(l, NotNil)
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files := [][]string{
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{"kernel.img", "I'm a kernel"},
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{"initrd.img", "...and I'm an initrd"},
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{"boot.img", "...and I'm an boot image"},
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{"dtbs/foo.dtb", "g'day, I'm foo.dtb"},
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{"dtbs/bar.dtb", "hello, I'm bar.dtb"},
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// must be last
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{"meta/kernel.yaml", "version: 4.2"},
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}
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si := &snap.SideInfo{
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RealName: "ubuntu-kernel",
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Revision: snap.R(42),
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}
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fn := snaptest.MakeTestSnapWithFiles(c, packageKernel, files)
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snapf, err := snapfile.Open(fn)
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c.Assert(err, IsNil)
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info, err := snap.ReadInfoFromSnapFile(snapf, si)
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c.Assert(err, IsNil)
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if role == bootloader.RoleSole {
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err = l.ExtractKernelAssets(info, snapf)
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} else {
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// this isn't quite how ExtractRecoveryKernel is typically called,
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// typically it will be called with an actual recovery system dir,
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// but for our purposes this is close enough, we just extract files
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// to some directory
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err = l.ExtractRecoveryKernelAssets(s.rootdir, info, snapf)
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}
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c.Assert(err, IsNil)
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// just boot.img and snapbootsel.bin are there, no kernel.img
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infos, err := os.ReadDir(filepath.Join(s.rootdir, "boot", "lk", ""))
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c.Assert(err, IsNil)
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var fnames []string
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for _, info := range infos {
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fnames = append(fnames, info.Name())
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}
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sort.Strings(fnames)
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c.Assert(fnames, HasLen, 2)
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expFiles := []string{"boot.img"}
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if role == bootloader.RoleSole {
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expFiles = append(expFiles, "snapbootsel.bin")
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} else {
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expFiles = append(expFiles, "snaprecoverysel.bin")
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}
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c.Assert(fnames, DeepEquals, expFiles)
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// clean up the rootdir for the next iteration
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c.Assert(os.RemoveAll(s.rootdir), IsNil)
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}
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}
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func (s *lkTestSuite) TestExtractKernelAssetsUnpacksCustomBootimgImageBuilding(c *C) {
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opts := &bootloader.Options{
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PrepareImageTime: true,
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Role: bootloader.RoleSole,
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}
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bootloader.MockLkFiles(c, s.rootdir, opts)
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l := bootloader.NewLk(s.rootdir, opts)
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c.Assert(l, NotNil)
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// first configure custom boot image file name
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f, err := bootloader.LkConfigFile(l)
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c.Assert(err, IsNil)
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env := lkenv.NewEnv(f, "", lkenv.V1)
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env.Load()
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env.Set("bootimg_file_name", "boot-2.img")
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err = env.Save()
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c.Assert(err, IsNil)
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files := [][]string{
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{"kernel.img", "I'm a kernel"},
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{"initrd.img", "...and I'm an initrd"},
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{"boot-2.img", "...and I'm an boot image"},
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{"dtbs/foo.dtb", "g'day, I'm foo.dtb"},
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{"dtbs/bar.dtb", "hello, I'm bar.dtb"},
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// must be last
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{"meta/kernel.yaml", "version: 4.2"},
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}
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si := &snap.SideInfo{
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RealName: "ubuntu-kernel",
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Revision: snap.R(42),
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}
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fn := snaptest.MakeTestSnapWithFiles(c, packageKernel, files)
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snapf, err := snapfile.Open(fn)
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c.Assert(err, IsNil)
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info, err := snap.ReadInfoFromSnapFile(snapf, si)
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c.Assert(err, IsNil)
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err = l.ExtractKernelAssets(info, snapf)
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c.Assert(err, IsNil)
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// boot-2.img is there
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bootimg := filepath.Join(s.rootdir, "boot", "lk", "boot-2.img")
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c.Assert(osutil.FileExists(bootimg), Equals, true)
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}
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func (s *lkTestSuite) TestExtractKernelAssetsUnpacksAndRemoveInRuntimeMode(c *C) {
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logbuf, r := logger.MockLogger()
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defer r()
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opts := &bootloader.Options{
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Role: bootloader.RoleSole,
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}
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r = bootloader.MockLkFiles(c, s.rootdir, opts)
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defer r()
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lk := bootloader.NewLk(s.rootdir, opts)
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c.Assert(lk, NotNil)
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// ensure we have a valid boot env
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// TODO: this will follow the same logic as RoleRunMode eventually
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bootselPartition := filepath.Join(s.rootdir, "/dev/disk/by-partlabel/snapbootsel")
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lkenv := lkenv.NewEnv(bootselPartition, "", lkenv.V1)
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// don't need to initialize this env, the same file will already have been
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// setup by MockLkFiles()
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// mock a kernel snap that has a boot.img
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files := [][]string{
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{"boot.img", "I'm the default boot image name"},
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}
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si := &snap.SideInfo{
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RealName: "ubuntu-kernel",
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Revision: snap.R(42),
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}
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fn := snaptest.MakeTestSnapWithFiles(c, packageKernel, files)
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snapf, err := snapfile.Open(fn)
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c.Assert(err, IsNil)
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info, err := snap.ReadInfoFromSnapFile(snapf, si)
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c.Assert(err, IsNil)
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// now extract
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err = lk.ExtractKernelAssets(info, snapf)
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c.Assert(err, IsNil)
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// and validate it went to the "boot_a" partition
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bootA := filepath.Join(s.rootdir, "/dev/disk/by-partlabel/boot_a")
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content, err := os.ReadFile(bootA)
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c.Assert(err, IsNil)
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c.Assert(string(content), Equals, "I'm the default boot image name")
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// also validate that bootB is empty
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bootB := filepath.Join(s.rootdir, "/dev/disk/by-partlabel/boot_b")
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content, err = os.ReadFile(bootB)
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c.Assert(err, IsNil)
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c.Assert(content, HasLen, 0)
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// test that boot partition got set
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err = lkenv.Load()
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c.Assert(err, IsNil)
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bootPart, err := lkenv.GetKernelBootPartition("ubuntu-kernel_42.snap")
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c.Assert(err, IsNil)
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c.Assert(bootPart, Equals, "boot_a")
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// now remove the kernel
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err = lk.RemoveKernelAssets(info)
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c.Assert(err, IsNil)
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// and ensure its no longer available in the boot partitions
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err = lkenv.Load()
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c.Assert(err, IsNil)
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bootPart, err = lkenv.GetKernelBootPartition("ubuntu-kernel_42.snap")
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c.Assert(err, ErrorMatches, fmt.Sprintf("cannot find kernel %[1]q: no boot image partition has value %[1]q", "ubuntu-kernel_42.snap"))
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c.Assert(bootPart, Equals, "")
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c.Assert(logbuf.String(), Equals, "")
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}
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func (s *lkTestSuite) TestExtractKernelAssetsUnpacksAndRemoveInRuntimeModeUC20(c *C) {
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logbuf, r := logger.MockLogger()
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defer r()
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opts := &bootloader.Options{
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Role: bootloader.RoleRunMode,
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}
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r = bootloader.MockLkFiles(c, s.rootdir, opts)
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defer r()
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lk := bootloader.NewLk(s.rootdir, opts)
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c.Assert(lk, NotNil)
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// all expected files are created for RoleRunMode bootloader in
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// MockLkFiles
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// ensure we have a valid boot env
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disk, err := disks.DiskFromDeviceName("lk-boot-disk")
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c.Assert(err, IsNil)
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partuuid, err := disk.FindMatchingPartitionUUIDWithPartLabel("snapbootsel")
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c.Assert(err, IsNil)
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// also confirm that we can load the backup file partition too
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backupPartuuid, err := disk.FindMatchingPartitionUUIDWithPartLabel("snapbootselbak")
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c.Assert(err, IsNil)
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bootselPartition := filepath.Join(s.rootdir, "/dev/disk/by-partuuid", partuuid)
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bootselPartitionBackup := filepath.Join(s.rootdir, "/dev/disk/by-partuuid", backupPartuuid)
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env := lkenv.NewEnv(bootselPartition, "", lkenv.V2Run)
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backupEnv := lkenv.NewEnv(bootselPartitionBackup, "", lkenv.V2Run)
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// mock a kernel snap that has a boot.img
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files := [][]string{
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{"boot.img", "I'm the default boot image name"},
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}
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si := &snap.SideInfo{
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RealName: "ubuntu-kernel",
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Revision: snap.R(42),
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}
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fn := snaptest.MakeTestSnapWithFiles(c, packageKernel, files)
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snapf, err := snapfile.Open(fn)
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c.Assert(err, IsNil)
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info, err := snap.ReadInfoFromSnapFile(snapf, si)
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c.Assert(err, IsNil)
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// now extract
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err = lk.ExtractKernelAssets(info, snapf)
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c.Assert(err, IsNil)
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// and validate it went to the "boot_a" partition
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bootAPartUUID, err := disk.FindMatchingPartitionUUIDWithPartLabel("boot_a")
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c.Assert(err, IsNil)
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bootA := filepath.Join(s.rootdir, "/dev/disk/by-partuuid", bootAPartUUID)
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content, err := os.ReadFile(bootA)
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c.Assert(err, IsNil)
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c.Assert(string(content), Equals, "I'm the default boot image name")
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// also validate that bootB is empty
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bootBPartUUID, err := disk.FindMatchingPartitionUUIDWithPartLabel("boot_b")
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c.Assert(err, IsNil)
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bootB := filepath.Join(s.rootdir, "/dev/disk/by-partuuid", bootBPartUUID)
|
|
content, err = os.ReadFile(bootB)
|
|
c.Assert(err, IsNil)
|
|
c.Assert(content, HasLen, 0)
|
|
|
|
// test that boot partition got set
|
|
err = env.Load()
|
|
c.Assert(err, IsNil)
|
|
bootPart, err := env.GetKernelBootPartition("ubuntu-kernel_42.snap")
|
|
c.Assert(err, IsNil)
|
|
c.Assert(bootPart, Equals, "boot_a")
|
|
|
|
// in the backup too
|
|
err = backupEnv.Load()
|
|
c.Assert(logbuf.String(), Equals, "")
|
|
c.Assert(err, IsNil)
|
|
|
|
bootPart, err = backupEnv.GetKernelBootPartition("ubuntu-kernel_42.snap")
|
|
c.Assert(err, IsNil)
|
|
c.Assert(bootPart, Equals, "boot_a")
|
|
|
|
// now remove the kernel
|
|
err = lk.RemoveKernelAssets(info)
|
|
c.Assert(err, IsNil)
|
|
// and ensure its no longer available in the boot partitions
|
|
err = env.Load()
|
|
c.Assert(err, IsNil)
|
|
_, err = env.GetKernelBootPartition("ubuntu-kernel_42.snap")
|
|
c.Assert(err, ErrorMatches, fmt.Sprintf("cannot find kernel %[1]q: no boot image partition has value %[1]q", "ubuntu-kernel_42.snap"))
|
|
err = backupEnv.Load()
|
|
c.Assert(err, IsNil)
|
|
// in the backup too
|
|
_, err = backupEnv.GetKernelBootPartition("ubuntu-kernel_42.snap")
|
|
c.Assert(err, ErrorMatches, fmt.Sprintf("cannot find kernel %[1]q: no boot image partition has value %[1]q", "ubuntu-kernel_42.snap"))
|
|
|
|
c.Assert(logbuf.String(), Equals, "")
|
|
}
|
|
|
|
func (s *lkTestSuite) TestExtractRecoveryKernelAssetsAtRuntime(c *C) {
|
|
opts := &bootloader.Options{
|
|
// as called when creating a recovery system at runtime
|
|
PrepareImageTime: false,
|
|
Role: bootloader.RoleRecovery,
|
|
}
|
|
r := bootloader.MockLkFiles(c, s.rootdir, opts)
|
|
defer r()
|
|
l := bootloader.NewLk(s.rootdir, opts)
|
|
|
|
c.Assert(l, NotNil)
|
|
|
|
files := [][]string{
|
|
{"kernel.img", "I'm a kernel"},
|
|
{"initrd.img", "...and I'm an initrd"},
|
|
{"boot.img", "...and I'm an boot image"},
|
|
{"meta/kernel.yaml", "version: 4.2"},
|
|
}
|
|
si := &snap.SideInfo{
|
|
RealName: "ubuntu-kernel",
|
|
Revision: snap.R(42),
|
|
}
|
|
fn := snaptest.MakeTestSnapWithFiles(c, packageKernel, files)
|
|
snapf, err := snapfile.Open(fn)
|
|
c.Assert(err, IsNil)
|
|
|
|
info, err := snap.ReadInfoFromSnapFile(snapf, si)
|
|
c.Assert(err, IsNil)
|
|
|
|
relativeRecoverySystemDir := "systems/1234"
|
|
c.Assert(os.MkdirAll(filepath.Join(s.rootdir, relativeRecoverySystemDir), 0755), IsNil)
|
|
err = l.ExtractRecoveryKernelAssets(relativeRecoverySystemDir, info, snapf)
|
|
c.Assert(err, ErrorMatches, "internal error: extracting recovery kernel assets is not supported for a runtime lk bootloader")
|
|
}
|
|
|
|
// TODO:UC20: when runtime addition (and deletion) of recovery systems is
|
|
// implemented, add tests for that here with lkenv
|