1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
/* -*- 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 "RemoteSandboxBrokerParent.h"
#include "RemoteSandboxBrokerProcessParent.h"
#include "mozilla/Telemetry.h"
#include <windows.h>
namespace mozilla {
RefPtr<GenericPromise> RemoteSandboxBrokerParent::Launch(
const nsTArray<uint64_t>& aHandlesToShare, nsISerialEventTarget* aThread) {
MOZ_ASSERT(!mProcess);
if (mProcess) {
// Don't re-init.
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
mProcess = new RemoteSandboxBrokerProcessParent();
for (uint64_t handle : aHandlesToShare) {
mProcess->AddHandleToShare(HANDLE(handle));
}
// Note: we rely on the caller to keep this instance alive while we launch
// the process, so that these closures point to valid memory.
auto resolve = [this](base::ProcessHandle handle) {
mOpened = Open(mProcess->TakeChannel(), base::GetProcId(handle));
if (!mOpened) {
mProcess->Destroy();
mProcess = nullptr;
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
return GenericPromise::CreateAndResolve(true, __func__);
};
auto reject = [this]() {
NS_ERROR("failed to launch child in the parent");
if (mProcess) {
mProcess->Destroy();
mProcess = nullptr;
}
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
};
return mProcess->AsyncLaunch()->Then(aThread, __func__, std::move(resolve),
std::move(reject));
}
bool RemoteSandboxBrokerParent::DuplicateFromLauncher(HANDLE aLauncherHandle,
LPHANDLE aOurHandle) {
return ::DuplicateHandle(mProcess->GetChildProcessHandle(), aLauncherHandle,
::GetCurrentProcess(), aOurHandle, 0, false,
DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
}
void RemoteSandboxBrokerParent::ActorDestroy(ActorDestroyReason aWhy) {
if (AbnormalShutdown == aWhy) {
Telemetry::Accumulate(Telemetry::SUBPROCESS_ABNORMAL_ABORT,
nsDependentCString(XRE_GeckoProcessTypeToString(
GeckoProcessType_RemoteSandboxBroker)),
1);
GenerateCrashReport(OtherPid());
}
Shutdown();
}
void RemoteSandboxBrokerParent::Shutdown() {
if (mOpened) {
mOpened = false;
Close();
}
if (mProcess) {
mProcess->Destroy();
mProcess = nullptr;
}
}
} // namespace mozilla
|
