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|
package dbus_test
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"os"
"os/exec"
"strings"
"syscall"
"testing"
"time"
"git.gensokyo.uk/security/hakurei/container"
"git.gensokyo.uk/security/hakurei/helper"
"git.gensokyo.uk/security/hakurei/internal"
"git.gensokyo.uk/security/hakurei/internal/hlog"
"git.gensokyo.uk/security/hakurei/system/dbus"
)
func TestFinalise(t *testing.T) {
if _, err := dbus.Finalise(dbus.ProxyPair{}, dbus.ProxyPair{}, nil, nil); !errors.Is(err, syscall.EBADE) {
t.Errorf("Finalise: error = %v, want %v",
err, syscall.EBADE)
}
for id, tc := range testCasePairs() {
t.Run("create final for "+id, func(t *testing.T) {
var wt io.WriterTo
if v, err := dbus.Finalise(tc[0].bus, tc[1].bus, tc[0].c, tc[1].c); (errors.Is(err, syscall.EINVAL)) != tc[0].wantErr {
t.Errorf("Finalise: error = %v, wantErr %v",
err, tc[0].wantErr)
return
} else {
wt = v
}
// rest of the tests happen for sealed instances
if tc[0].wantErr {
return
}
// build null-terminated string from wanted args
want := new(strings.Builder)
args := append(tc[0].want, tc[1].want...)
for _, arg := range args {
want.WriteString(arg)
want.WriteByte(0)
}
got := new(strings.Builder)
if _, err := wt.WriteTo(got); err != nil {
t.Errorf("WriteTo: error = %v", err)
}
if want.String() != got.String() {
t.Errorf("Seal: %q, want %q",
got.String(), want.String())
}
})
}
}
func TestProxyStartWaitCloseString(t *testing.T) {
oldWaitDelay := helper.WaitDelay
helper.WaitDelay = 16 * time.Second
t.Cleanup(func() { helper.WaitDelay = oldWaitDelay })
t.Run("sandbox", func(t *testing.T) {
proxyName := dbus.ProxyName
dbus.ProxyName = os.Args[0]
t.Cleanup(func() { dbus.ProxyName = proxyName })
testProxyFinaliseStartWaitCloseString(t, true)
})
t.Run("direct", func(t *testing.T) { testProxyFinaliseStartWaitCloseString(t, false) })
}
func testProxyFinaliseStartWaitCloseString(t *testing.T, useSandbox bool) {
var p *dbus.Proxy
t.Run("string for nil proxy", func(t *testing.T) {
want := "(invalid dbus proxy)"
if got := p.String(); got != want {
t.Errorf("String: %q, want %q",
got, want)
}
})
t.Run("invalid start", func(t *testing.T) {
if !useSandbox {
p = dbus.NewDirect(t.Context(), nil, nil)
} else {
p = dbus.New(t.Context(), nil, nil)
}
if err := p.Start(); !errors.Is(err, syscall.ENOTRECOVERABLE) {
t.Errorf("Start: error = %q, wantErr %q",
err, syscall.ENOTRECOVERABLE)
return
}
})
for id, tc := range testCasePairs() {
// this test does not test errors
if tc[0].wantErr {
continue
}
t.Run("proxy for "+id, func(t *testing.T) {
var final *dbus.Final
t.Run("finalise", func(t *testing.T) {
if v, err := dbus.Finalise(tc[0].bus, tc[1].bus, tc[0].c, tc[1].c); err != nil {
t.Errorf("Finalise: error = %v, wantErr %v",
err, tc[0].wantErr)
return
} else {
final = v
}
})
ctx, cancel := context.WithTimeout(t.Context(), 5*time.Second)
defer cancel()
if !useSandbox {
p = dbus.NewDirect(ctx, final, nil)
} else {
p = dbus.New(ctx, final, nil)
}
p.CommandContext = func(ctx context.Context) (cmd *exec.Cmd) {
return exec.CommandContext(ctx, os.Args[0], "-test.v",
"-test.run=TestHelperInit", "--", "init")
}
p.CmdF = func(v any) {
if useSandbox {
z := v.(*container.Container)
if z.Args[0] != dbus.ProxyName {
panic(fmt.Sprintf("unexpected argv0 %q", os.Args[0]))
}
z.Args = append([]string{os.Args[0], "-test.run=TestHelperStub", "--"}, z.Args[1:]...)
} else {
cmd := v.(*exec.Cmd)
if cmd.Args[0] != dbus.ProxyName {
panic(fmt.Sprintf("unexpected argv0 %q", os.Args[0]))
}
cmd.Err = nil
cmd.Path = os.Args[0]
cmd.Args = append([]string{os.Args[0], "-test.run=TestHelperStub", "--"}, cmd.Args[1:]...)
}
}
p.FilterF = func(v []byte) []byte { return bytes.SplitN(v, []byte("TestHelperInit\n"), 2)[1] }
output := new(strings.Builder)
t.Run("invalid wait", func(t *testing.T) {
wantErr := "dbus: not started"
if err := p.Wait(); err == nil || err.Error() != wantErr {
t.Errorf("Wait: error = %v, wantErr %v",
err, wantErr)
}
})
t.Run("string", func(t *testing.T) {
want := "(unused dbus proxy)"
if got := p.String(); got != want {
t.Errorf("String: %q, want %q",
got, want)
return
}
})
t.Run("start", func(t *testing.T) {
if err := p.Start(); err != nil {
t.Fatalf("Start: error = %v",
err)
}
t.Run("string", func(t *testing.T) {
wantSubstr := fmt.Sprintf("%s -test.run=TestHelperStub -- --args=3 --fd=4", os.Args[0])
if useSandbox {
wantSubstr = fmt.Sprintf(`argv: ["%s" "-test.run=TestHelperStub" "--" "--args=3" "--fd=4"], filter: true, rules: 0, flags: 0x1, presets: 0xf`, os.Args[0])
}
if got := p.String(); !strings.Contains(got, wantSubstr) {
t.Errorf("String: %q, want %q",
got, wantSubstr)
return
}
})
t.Run("wait", func(t *testing.T) {
done := make(chan struct{})
go func() {
if err := p.Wait(); err != nil {
t.Errorf("Wait: error = %v\noutput: %s",
err, output.String())
}
close(done)
}()
p.Close()
<-done
})
})
})
}
}
func TestHelperInit(t *testing.T) {
if len(os.Args) != 5 || os.Args[4] != "init" {
return
}
container.SetOutput(hlog.Output{})
container.Init(hlog.Prepare, internal.InstallOutput)
}
|
