blob: c3f716e484f8edd8ebb5fd71279b1838ef51d852 (
plain)
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
|
/* -*- 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 http://mozilla.org/MPL/2.0/. */
#include "mozISandboxSettings.h"
#include "mozilla/Components.h"
#include "mozilla/Preferences.h"
#include "mozilla/StaticPrefs_media.h"
#include "mozilla/StaticPrefs_security.h"
#include "prenv.h"
using namespace mozilla;
namespace mozilla {
int GetEffectiveContentSandboxLevel() {
if (PR_GetEnv("MOZ_DISABLE_CONTENT_SANDBOX")) {
return 0;
}
int level = StaticPrefs::security_sandbox_content_level_DoNotUseDirectly();
// On Windows and macOS, enforce a minimum content sandbox level of 1 (except on
// Nightly, where it can be set to 0).
#if !defined(NIGHTLY_BUILD) && (defined(XP_WIN) || defined(XP_MACOSX))
if (level < 1) {
level = 1;
}
#endif
#ifdef XP_LINUX
// Level 4 and up will break direct access to audio.
if (level > 3 && !StaticPrefs::media_cubeb_sandbox()) {
level = 3;
}
#endif
return level;
}
bool IsContentSandboxEnabled() { return GetEffectiveContentSandboxLevel() > 0; }
int GetEffectiveSocketProcessSandboxLevel() {
if (PR_GetEnv("MOZ_DISABLE_SOCKET_PROCESS_SANDBOX")) {
return 0;
}
int level =
StaticPrefs::security_sandbox_socket_process_level_DoNotUseDirectly();
return level;
}
#if defined(XP_MACOSX)
int ClampFlashSandboxLevel(const int aLevel) {
const int minLevel = 0;
const int maxLevel = 3;
if (aLevel < minLevel) {
return minLevel;
}
if (aLevel > maxLevel) {
return maxLevel;
}
return aLevel;
}
#endif
class SandboxSettings final : public mozISandboxSettings {
public:
NS_DECL_ISUPPORTS
NS_DECL_MOZISANDBOXSETTINGS
SandboxSettings() = default;
private:
~SandboxSettings() = default;
};
NS_IMPL_ISUPPORTS(SandboxSettings, mozISandboxSettings)
NS_IMETHODIMP SandboxSettings::GetEffectiveContentSandboxLevel(
int32_t* aRetVal) {
*aRetVal = mozilla::GetEffectiveContentSandboxLevel();
return NS_OK;
}
} // namespace mozilla
NS_IMPL_COMPONENT_FACTORY(mozISandboxSettings) {
return MakeAndAddRef<SandboxSettings>().downcast<nsISupports>();
}
|
