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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
#include "SandboxTestingChild.h"
#include "SandboxTestingChildTests.h"
#include "SandboxTestingThread.h"
#include "mozilla/ipc/Endpoint.h"
#include "mozilla/ipc/UtilityProcessSandboxing.h"
#include "mozilla/ipc/UtilityProcessChild.h"
#ifdef XP_LINUX
# include "mozilla/Sandbox.h"
#endif
#include "nsXULAppAPI.h"
namespace mozilla {
SandboxTestingChild* SandboxTestingChild::sInstance = nullptr;
bool SandboxTestingChild::IsTestThread() { return mThread->IsOnThread(); }
void SandboxTestingChild::PostToTestThread(
already_AddRefed<nsIRunnable>&& runnable) {
mThread->Dispatch(std::move(runnable));
}
/* static */
bool SandboxTestingChild::Initialize(
Endpoint<PSandboxTestingChild>&& aSandboxTestingEndpoint) {
MOZ_ASSERT(!sInstance);
SandboxTestingThread* thread = SandboxTestingThread::Create();
if (!thread) {
return false;
}
sInstance =
new SandboxTestingChild(thread, std::move(aSandboxTestingEndpoint));
return true;
}
/* static */
SandboxTestingChild* SandboxTestingChild::GetInstance() {
MOZ_ASSERT(sInstance, "Must initialize SandboxTestingChild before using it");
return sInstance;
}
SandboxTestingChild::SandboxTestingChild(
SandboxTestingThread* aThread, Endpoint<PSandboxTestingChild>&& aEndpoint)
: mThread(aThread) {
MOZ_ASSERT(aThread);
PostToTestThread(NewNonOwningRunnableMethod<Endpoint<PSandboxTestingChild>&&>(
"SandboxTestingChild::Bind", this, &SandboxTestingChild::Bind,
std::move(aEndpoint)));
}
void SandboxTestingChild::Bind(Endpoint<PSandboxTestingChild>&& aEndpoint) {
MOZ_RELEASE_ASSERT(mThread->IsOnThread());
DebugOnly<bool> ok = aEndpoint.Bind(this);
MOZ_ASSERT(ok);
#ifdef XP_LINUX
bool sandboxCrashOnError = SetSandboxCrashOnError(false);
#endif
if (XRE_IsContentProcess()) {
RunTestsContent(this);
}
if (XRE_IsRDDProcess()) {
RunTestsRDD(this);
}
if (XRE_IsGMPluginProcess()) {
RunTestsGMPlugin(this);
}
if (XRE_IsSocketProcess()) {
RunTestsSocket(this);
}
if (XRE_IsUtilityProcess()) {
RefPtr<ipc::UtilityProcessChild> s = ipc::UtilityProcessChild::Get();
MOZ_ASSERT(s, "Unable to grab a UtilityProcessChild");
switch (s->mSandbox) {
case ipc::SandboxingKind::GENERIC_UTILITY:
RunTestsGenericUtility(this);
#ifdef MOZ_APPLEMEDIA
[[fallthrough]];
case ipc::SandboxingKind::UTILITY_AUDIO_DECODING_APPLE_MEDIA:
#endif
#ifdef XP_WIN
[[fallthrough]];
case ipc::SandboxingKind::UTILITY_AUDIO_DECODING_WMF:
#endif
RunTestsUtilityAudioDecoder(this, s->mSandbox);
break;
default:
MOZ_ASSERT(false, "Invalid SandboxingKind");
break;
}
}
#ifdef XP_LINUX
SetSandboxCrashOnError(sandboxCrashOnError);
#endif
// Tell SandboxTest that this process is done with all tests.
SendTestCompleted();
}
void SandboxTestingChild::ActorDestroy(ActorDestroyReason aWhy) {
MOZ_ASSERT(mThread->IsOnThread());
NS_DispatchToMainThread(NS_NewRunnableFunction(
"SandboxChildDestroyer", []() { SandboxTestingChild::Destroy(); }));
}
void SandboxTestingChild::Destroy() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(sInstance);
delete sInstance;
sInstance = nullptr;
}
ipc::IPCResult SandboxTestingChild::RecvShutDown() {
Close();
return IPC_OK();
}
void SandboxTestingChild::ReportNoTests() {
SendReportTestResults("dummy_test"_ns, /* passed */ true,
"The test framework fails if there are no cases."_ns);
}
template <typename F>
void SandboxTestingChild::ErrnoTest(const nsCString& aName, bool aExpectSuccess,
F&& aFunction) {
int status = aFunction() >= 0 ? 0 : errno;
PosixTest(aName, aExpectSuccess, status);
}
template <typename F>
void SandboxTestingChild::ErrnoValueTest(const nsCString& aName,
int aExpectedErrno, F&& aFunction) {
int status = aFunction() >= 0 ? 0 : errno;
PosixTest(aName, aExpectedErrno == 0, status, Some(aExpectedErrno));
}
void SandboxTestingChild::PosixTest(const nsCString& aName, bool aExpectSuccess,
int aStatus, Maybe<int> aExpectedError) {
nsAutoCString message;
bool passed;
// The "expected" arguments are a little redundant.
MOZ_ASSERT(!aExpectedError || aExpectSuccess == (*aExpectedError == 0));
// Decide whether the test passed, and stringify the actual result.
if (aStatus == 0) {
message = "Succeeded"_ns;
passed = aExpectSuccess;
} else {
message = "Error: "_ns;
message += strerror(aStatus);
if (aExpectedError) {
passed = aStatus == *aExpectedError;
} else {
passed = !aExpectSuccess;
}
}
// If something unexpected happened, mention the expected result.
if (!passed) {
message += "; expected ";
if (aExpectSuccess) {
message += "success";
} else {
message += "error";
if (aExpectedError) {
message += ": ";
message += strerror(*aExpectedError);
}
}
}
SendReportTestResults(aName, passed, message);
}
} // namespace mozilla
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