hakurei/internal/store/store_test.go
Ophestra a1214d350c
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hst/grp_pwd: specify new uid format
This leaves slots available for additional uid ranges in Rosa OS.

This breaks all existing installations! Users are required to fix ownership manually.

Closes #18.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-11-04 08:19:04 +09:00

406 lines
12 KiB
Go

package store_test
import (
"bytes"
"cmp"
"iter"
"os"
"reflect"
"slices"
"strconv"
"strings"
"syscall"
"testing"
"time"
_ "unsafe"
"hakurei.app/container/check"
"hakurei.app/hst"
"hakurei.app/internal/store"
)
//go:linkname bigLock hakurei.app/internal/store.(*Store).bigLock
func bigLock(s *store.Store) (unlock func(), err error)
func TestStoreBigLock(t *testing.T) {
t.Parallel()
{
s := store.New(check.MustAbs(t.TempDir()).Append("state"))
for i := 0; i < 2; i++ { // check once behaviour
if unlock, err := bigLock(s); err != nil {
t.Fatalf("bigLock: error = %v", err)
} else {
unlock()
}
}
}
t.Run("mkdir", func(t *testing.T) {
t.Parallel()
wantErr := &hst.AppError{Step: "create state store directory",
Err: &os.PathError{Op: "mkdir", Path: "/proc/nonexistent", Err: syscall.ENOENT}}
for i := 0; i < 2; i++ { // check once behaviour
if _, err := bigLock(store.New(check.MustAbs("/proc/nonexistent"))); !reflect.DeepEqual(err, wantErr) {
t.Errorf("bigLock: error = %#v, want %#v", err, wantErr)
}
}
})
t.Run("access", func(t *testing.T) {
t.Parallel()
base := check.MustAbs(t.TempDir()).Append("inaccessible")
if err := os.MkdirAll(base.String(), 0); err != nil {
t.Fatal(err.Error())
}
wantErr := &hst.AppError{Step: "acquire lock on the state store",
Err: &os.PathError{Op: "open", Path: base.Append(store.MutexName).String(), Err: syscall.EACCES}}
if _, err := bigLock(store.New(base)); !reflect.DeepEqual(err, wantErr) {
t.Errorf("bigLock: error = %#v, want %#v", err, wantErr)
}
})
}
func TestStoreHandle(t *testing.T) {
t.Parallel()
t.Run("loadstore", func(t *testing.T) {
t.Parallel()
s := store.New(check.MustAbs(t.TempDir()).Append("store"))
var handleAddr [8]*store.Handle
checkHandle := func(identity int, load bool) {
if h, err := s.Handle(identity); err != nil {
t.Fatalf("Handle: error = %v", err)
} else if load != (handleAddr[identity] != nil) {
t.Fatalf("Handle: load = %v, want %v", load, handleAddr[identity] != nil)
} else if !load {
handleAddr[identity] = h
if h.Identity != identity {
t.Errorf("Handle: identity = %d, want %d", h.Identity, identity)
}
} else if h != handleAddr[identity] {
t.Fatalf("Handle: %p, want %p", h, handleAddr[identity])
}
}
checkHandle(0, false)
checkHandle(1, false)
checkHandle(2, false)
checkHandle(3, false)
checkHandle(7, false)
checkHandle(7, true)
checkHandle(2, true)
checkHandle(1, true)
checkHandle(2, true)
checkHandle(0, true)
})
t.Run("access", func(t *testing.T) {
t.Parallel()
base := check.MustAbs(t.TempDir()).Append("inaccessible")
if err := os.MkdirAll(base.String(), 0); err != nil {
t.Fatal(err.Error())
}
wantErr := &hst.AppError{Step: "acquire lock on the state store",
Err: &os.PathError{Op: "open", Path: base.Append(store.MutexName).String(), Err: syscall.EACCES}}
if _, err := store.New(base).Handle(0); !reflect.DeepEqual(err, wantErr) {
t.Errorf("Handle: error = %#v, want %#v", err, wantErr)
}
})
t.Run("access segment", func(t *testing.T) {
t.Parallel()
base := check.MustAbs(t.TempDir()).Append("inaccessible")
if err := os.MkdirAll(base.String(), 0700); err != nil {
t.Fatal(err.Error())
}
if f, err := os.Create(base.Append(store.MutexName).String()); err != nil {
t.Fatal(err.Error())
} else if err = f.Close(); err != nil {
t.Fatal(err.Error())
}
if err := os.Chmod(base.String(), 0100); err != nil {
t.Fatal(err.Error())
}
t.Cleanup(func() {
if err := os.Chmod(base.String(), 0700); err != nil {
t.Fatal(err.Error())
}
})
wantErr := &hst.AppError{Step: "create store segment directory",
Err: &os.PathError{Op: "mkdir", Path: base.Append("0").String(), Err: syscall.EACCES}}
if _, err := store.New(base).Handle(0); !reflect.DeepEqual(err, wantErr) {
t.Errorf("Handle: error = %#v, want %#v", err, wantErr)
}
})
}
func TestStoreSegments(t *testing.T) {
t.Parallel()
testCases := []struct {
name string
ents [2][]string
want []store.SegmentIdentity
ext func(t *testing.T, segments iter.Seq[store.SegmentIdentity], n int)
}{
{"errors", [2][]string{{
"f0-invalid-file",
}, {
"f1-invalid-syntax",
"9999",
"16384",
}}, []store.SegmentIdentity{
{-1, &hst.AppError{Step: "process store segment", Err: syscall.ENOTDIR,
Msg: `skipped non-directory entry "f0-invalid-file"`}},
{-1, &hst.AppError{Step: "process store segment", Err: syscall.ERANGE,
Msg: `skipped out of bounds entry 16384`}},
{-1, &hst.AppError{Step: "process store segment",
Err: &strconv.NumError{Func: "Atoi", Num: "f1-invalid-syntax", Err: strconv.ErrSyntax},
Msg: `skipped non-identity entry "f1-invalid-syntax"`}},
{9999, nil},
}, nil},
{"success", [2][]string{{
"lock",
}, {
"0",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"9",
"13",
"20",
"31",
"197",
}}, []store.SegmentIdentity{
{0, nil},
{1, nil},
{2, nil},
{3, nil},
{4, nil},
{5, nil},
{6, nil},
{7, nil},
{9, nil},
{13, nil},
{20, nil},
{31, nil},
{197, nil},
}, func(t *testing.T, segments iter.Seq[store.SegmentIdentity], n int) {
if n != 13 {
t.Fatalf("Segments: n = %d", n)
}
// check partial drain
for range segments {
break
}
}},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
base := check.MustAbs(t.TempDir()).Append("store")
if err := os.Mkdir(base.String(), 0700); err != nil {
t.Fatal(err.Error())
}
createEntries(t, base, tc.ents)
var got []store.SegmentIdentity
if segments, n, err := store.New(base).Segments(); err != nil {
t.Fatalf("Segments: error = %v", err)
} else {
got = slices.AppendSeq(make([]store.SegmentIdentity, 0, n), segments)
if tc.ext != nil {
tc.ext(t, segments, n)
}
}
slices.SortFunc(got, func(a, b store.SegmentIdentity) int {
if a.Identity == b.Identity {
return strings.Compare(a.Err.Error(), b.Err.Error())
}
return cmp.Compare(a.Identity, b.Identity)
})
if !reflect.DeepEqual(got, tc.want) {
t.Errorf("Segments: %#v, want %#v", got, tc.want)
}
})
}
t.Run("access", func(t *testing.T) {
t.Parallel()
base := check.MustAbs(t.TempDir()).Append("inaccessible")
if err := os.MkdirAll(base.String(), 0); err != nil {
t.Fatal(err.Error())
}
wantErr := &hst.AppError{Step: "acquire lock on the state store",
Err: &os.PathError{Op: "open", Path: base.Append(store.MutexName).String(), Err: syscall.EACCES}}
if _, _, err := store.New(base).Segments(); !reflect.DeepEqual(err, wantErr) {
t.Errorf("Segments: error = %#v, want %#v", err, wantErr)
}
})
}
func TestStoreAll(t *testing.T) {
t.Parallel()
testCases := []struct {
name string
data []hst.State
extra func(t *testing.T, base *check.Absolute)
err func(base *check.Absolute) error
}{
{"segment access", []hst.State{
{ID: (hst.ID)(bytes.Repeat([]byte{0xaa}, len(hst.ID{}))), PID: 0xbeef, ShimPID: 0xcafe, Config: hst.Template(), Time: time.Unix(0, 0xdeadbeef0)},
}, func(t *testing.T, base *check.Absolute) {
segmentPath := base.Append("0")
if err := os.Mkdir(segmentPath.String(), 0); err != nil {
t.Fatal(err.Error())
}
t.Cleanup(func() {
if err := os.Chmod(segmentPath.String(), 0755); err != nil {
t.Fatal(err.Error())
}
})
}, func(base *check.Absolute) error {
return &hst.AppError{
Step: "acquire lock on store segment 0",
Err: &os.PathError{Op: "open", Path: base.Append("0", store.MutexName).String(), Err: syscall.EACCES},
}
}},
{"bad segment", []hst.State{
{ID: (hst.ID)(bytes.Repeat([]byte{0xaa}, len(hst.ID{}))), PID: 0xbeef, ShimPID: 0xcafe, Config: hst.Template(), Time: time.Unix(0, 0xdeadbeef0)},
}, func(t *testing.T, base *check.Absolute) {
if f, err := os.Create(base.Append("invalid").String()); err != nil {
t.Fatal(err.Error())
} else if err = f.Close(); err != nil {
t.Fatal(err.Error())
}
}, func(base *check.Absolute) error {
return &hst.AppError{
Step: "process store segment",
Err: syscall.ENOTDIR,
Msg: `skipped non-directory entry "invalid"`,
}
}},
{"access", []hst.State{
{ID: (hst.ID)(bytes.Repeat([]byte{0xaa}, len(hst.ID{}))), PID: 0xbeef, ShimPID: 0xcafe, Config: hst.Template(), Time: time.Unix(0, 0xdeadbeef0)},
}, func(t *testing.T, base *check.Absolute) {
if err := os.Chmod(base.String(), 0); err != nil {
t.Fatal(err.Error())
}
t.Cleanup(func() {
if err := os.Chmod(base.String(), 0755); err != nil {
t.Fatal(err.Error())
}
})
}, func(base *check.Absolute) error {
return &hst.AppError{
Step: "acquire lock on the state store",
Err: &os.PathError{Op: "open", Path: base.Append(store.MutexName).String(), Err: syscall.EACCES},
}
}},
{"success single", []hst.State{
{ID: (hst.ID)(bytes.Repeat([]byte{0xaa}, len(hst.ID{}))), PID: 0xbeef, ShimPID: 0xcafe, Config: hst.Template(), Time: time.Unix(0, 0xdeadbeef0)},
}, func(t *testing.T, base *check.Absolute) {
for i := 0; i < hst.Template().Identity; i++ {
if err := os.Mkdir(base.Append(strconv.Itoa(i)).String(), 0700); err != nil {
t.Fatal(err.Error())
}
}
}, nil},
{"success", []hst.State{
{ID: (hst.ID)(bytes.Repeat([]byte{0xaa}, len(hst.ID{}))), PID: 0xbeef, ShimPID: 0xcafe, Config: hst.Template(), Time: time.Unix(0, 0xdeadbeef0)},
{ID: (hst.ID)(bytes.Repeat([]byte{0xab}, len(hst.ID{}))), PID: 0x1beef, ShimPID: 0x1cafe, Config: hst.Template(), Time: time.Unix(0, 0xdeadbeef1)},
{ID: (hst.ID)(bytes.Repeat([]byte{0xf0}, len(hst.ID{}))), PID: 0x2beef, ShimPID: 0x2cafe, Config: hst.Template(), Time: time.Unix(0, 0xdeadbeef2)},
{ID: (hst.ID)(bytes.Repeat([]byte{0xfe}, len(hst.ID{}))), PID: 0xbed, ShimPID: 0xfff, Config: func() *hst.Config {
template := hst.Template()
template.Identity = hst.IdentityEnd
return template
}(), Time: time.Unix(0, 0xcafebabe0)},
{ID: (hst.ID)(bytes.Repeat([]byte{0xfc}, len(hst.ID{}))), PID: 0x1bed, ShimPID: 0x1fff, Config: func() *hst.Config {
template := hst.Template()
template.Identity = 0xfc
return template
}(), Time: time.Unix(0, 0xcafebabe1)},
{ID: (hst.ID)(bytes.Repeat([]byte{0xce}, len(hst.ID{}))), PID: 0x2bed, ShimPID: 0x2fff, Config: func() *hst.Config {
template := hst.Template()
template.Identity = 0xce
return template
}(), Time: time.Unix(0, 0xcafebabe2)},
}, nil, nil},
}
for _, tc := range testCases {
base := check.MustAbs(t.TempDir()).Append("store")
s := store.New(base)
want := make([]*store.EntryHandle, 0, len(tc.data))
for i := range tc.data {
if h, err := s.Handle(tc.data[i].Identity); err != nil {
t.Fatalf("Handle: error = %v", err)
} else {
var unlock func()
if unlock, err = h.Lock(); err != nil {
t.Fatalf("Lock: error = %v", err)
}
var eh *store.EntryHandle
eh, err = h.Save(&tc.data[i])
unlock()
if err != nil {
t.Fatalf("Save: error = %v", err)
}
want = append(want, eh)
}
}
slices.SortFunc(want, func(a, b *store.EntryHandle) int { return strings.Compare(a.Pathname.String(), b.Pathname.String()) })
var wantErr error
if tc.err != nil {
wantErr = tc.err(base)
}
if tc.extra != nil {
tc.extra(t, base)
}
// store must not be written to beyond this point
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
entries, copyError := s.All()
got := slices.Collect(entries)
if err := copyError(); !reflect.DeepEqual(err, wantErr) {
t.Fatalf("All: error = %#v, want %#v", err, wantErr)
}
if wantErr == nil {
slices.SortFunc(got, func(a, b *store.EntryHandle) int { return strings.Compare(a.Pathname.String(), b.Pathname.String()) })
if !reflect.DeepEqual(got, want) {
t.Fatalf("All: %#v, want %#v", got, want)
}
}
})
}
}