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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/* -*- 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 "mozilla/WinDllServices.h"
#include <windows.h>
#include <psapi.h>
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/SchedulerGroup.h"
#include "mozilla/Services.h"
#include "mozilla/StaticLocalPtr.h"
#include "mozilla/UntrustedModulesProcessor.h"
#include "nsCOMPtr.h"
#include "nsIObserverService.h"
#include "nsString.h"
#include "nsXULAppAPI.h"
namespace mozilla {
const char* DllServices::kTopicDllLoadedMainThread = "dll-loaded-main-thread";
const char* DllServices::kTopicDllLoadedNonMainThread =
"dll-loaded-non-main-thread";
/* static */
DllServices* DllServices::Get() {
static StaticLocalRefPtr<DllServices> sInstance(
[]() -> already_AddRefed<DllServices> {
RefPtr<DllServices> dllSvc(new DllServices());
dllSvc->EnableFull();
auto setClearOnShutdown = [ptr = &sInstance]() -> void {
ClearOnShutdown(ptr);
};
if (NS_IsMainThread()) {
setClearOnShutdown();
return dllSvc.forget();
}
SchedulerGroup::Dispatch(NS_NewRunnableFunction(
"mozilla::DllServices::Get", std::move(setClearOnShutdown)));
return dllSvc.forget();
}());
return sInstance;
}
DllServices::~DllServices() { DisableFull(); }
void DllServices::StartUntrustedModulesProcessor(bool aIsStartingUp) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mUntrustedModulesProcessor);
mUntrustedModulesProcessor = UntrustedModulesProcessor::Create(aIsStartingUp);
}
bool DllServices::IsReadyForBackgroundProcessing() const {
return mUntrustedModulesProcessor &&
mUntrustedModulesProcessor->IsReadyForBackgroundProcessing();
}
RefPtr<UntrustedModulesPromise> DllServices::GetUntrustedModulesData() {
if (!mUntrustedModulesProcessor) {
return UntrustedModulesPromise::CreateAndReject(NS_ERROR_NOT_IMPLEMENTED,
__func__);
}
return mUntrustedModulesProcessor->GetProcessedData();
}
void DllServices::DisableFull() {
if (mUntrustedModulesProcessor) {
mUntrustedModulesProcessor->Disable();
}
glue::DllServices::DisableFull();
}
RefPtr<ModulesTrustPromise> DllServices::GetModulesTrust(
ModulePaths&& aModPaths, bool aRunAtNormalPriority) {
if (!mUntrustedModulesProcessor) {
return ModulesTrustPromise::CreateAndReject(NS_ERROR_NOT_IMPLEMENTED,
__func__);
}
return mUntrustedModulesProcessor->GetModulesTrust(std::move(aModPaths),
aRunAtNormalPriority);
}
void DllServices::NotifyDllLoad(glue::EnhancedModuleLoadInfo&& aModLoadInfo) {
MOZ_ASSERT(NS_IsMainThread());
const char* topic;
if (aModLoadInfo.mNtLoadInfo.mThreadId == ::GetCurrentThreadId()) {
topic = kTopicDllLoadedMainThread;
} else {
topic = kTopicDllLoadedNonMainThread;
}
// We save the path to a nsAutoString because once we have submitted
// aModLoadInfo for processing there is no guarantee that the original
// buffer will continue to be valid.
nsAutoString dllFilePath(aModLoadInfo.GetSectionName());
if (mUntrustedModulesProcessor) {
mUntrustedModulesProcessor->Enqueue(std::move(aModLoadInfo));
}
nsCOMPtr<nsIObserverService> obsServ(mozilla::services::GetObserverService());
if (!obsServ) {
return;
}
obsServ->NotifyObservers(nullptr, topic, dllFilePath.get());
}
void DllServices::NotifyModuleLoadBacklog(ModuleLoadInfoVec&& aEvents) {
MOZ_ASSERT(NS_IsMainThread());
if (!mUntrustedModulesProcessor) {
return;
}
mUntrustedModulesProcessor->Enqueue(std::move(aEvents));
}
} // namespace mozilla
|
