security/sandbox/win/src/sandboxbroker/sandboxBroker.cpp@6474c204b198 (annotated)
security/sandbox/win/src/sandboxbroker/sandboxBroker.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim: set ts=2 et sw=2 tw=80: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #include "sandboxBroker.h" |
| michael@0 | 8 | #include "sandbox/win/src/sandbox.h" |
| michael@0 | 9 | #include "sandbox/win/src/sandbox_factory.h" |
| michael@0 | 10 | |
| michael@0 | 11 | namespace mozilla |
| michael@0 | 12 | { |
| michael@0 | 13 | |
| michael@0 | 14 | sandbox::BrokerServices *SandboxBroker::sBrokerService = nullptr; |
| michael@0 | 15 | |
| michael@0 | 16 | SandboxBroker::SandboxBroker() |
| michael@0 | 17 | { |
| michael@0 | 18 | if (!sBrokerService) { |
| michael@0 | 19 | sBrokerService = sandbox::SandboxFactory::GetBrokerServices(); |
| michael@0 | 20 | if (sBrokerService) { |
| michael@0 | 21 | sandbox::ResultCode result = sBrokerService->Init(); |
| michael@0 | 22 | if (result != sandbox::SBOX_ALL_OK) { |
| michael@0 | 23 | sBrokerService = nullptr; |
| michael@0 | 24 | } |
| michael@0 | 25 | } |
| michael@0 | 26 | } |
| michael@0 | 27 | |
| michael@0 | 28 | // We'll start to increase the restrictions over time. |
| michael@0 | 29 | mPolicy = sBrokerService->CreatePolicy(); |
| michael@0 | 30 | } |
| michael@0 | 31 | |
| michael@0 | 32 | bool |
| michael@0 | 33 | SandboxBroker::AllowPipe(const wchar_t *aPath) |
| michael@0 | 34 | { |
| michael@0 | 35 | return mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_NAMED_PIPES, |
| michael@0 | 36 | sandbox::TargetPolicy::NAMEDPIPES_ALLOW_ANY, aPath); |
| michael@0 | 37 | } |
| michael@0 | 38 | |
| michael@0 | 39 | bool |
| michael@0 | 40 | SandboxBroker::LaunchApp(const wchar_t *aPath, |
| michael@0 | 41 | const wchar_t *aArguments, |
| michael@0 | 42 | void **aProcessHandle) |
| michael@0 | 43 | { |
| michael@0 | 44 | // If the broker service isn't already initialized, do it now |
| michael@0 | 45 | if (!sBrokerService || !mPolicy) { |
| michael@0 | 46 | return false; |
| michael@0 | 47 | } |
| michael@0 | 48 | |
| michael@0 | 49 | // Setup the sandbox policy, this is initially: |
| michael@0 | 50 | // Low integrity, unrestricted, in the same window station, within the |
| michael@0 | 51 | // same desktop, and has no job object. |
| michael@0 | 52 | // We'll start to increase the restrictions over time. |
| michael@0 | 53 | mPolicy->SetJobLevel(sandbox::JOB_NONE, 0); |
| michael@0 | 54 | mPolicy->SetTokenLevel(sandbox::USER_RESTRICTED_SAME_ACCESS, |
| michael@0 | 55 | sandbox::USER_RESTRICTED_SAME_ACCESS); |
| michael@0 | 56 | mPolicy->SetDelayedIntegrityLevel(sandbox::INTEGRITY_LEVEL_LOW); |
| michael@0 | 57 | |
| michael@0 | 58 | // Set an alternate Desktop within a new window station |
| michael@0 | 59 | mPolicy->SetAlternateDesktop(false); |
| michael@0 | 60 | |
| michael@0 | 61 | // Ceate the sandboxed process |
| michael@0 | 62 | PROCESS_INFORMATION targetInfo; |
| michael@0 | 63 | sandbox::ResultCode result; |
| michael@0 | 64 | result = sBrokerService->SpawnTarget(aPath, aArguments, mPolicy, &targetInfo); |
| michael@0 | 65 | |
| michael@0 | 66 | // The sandboxed process is started in a suspended state, resumeit now that |
| michael@0 | 67 | // we'eve set things up. |
| michael@0 | 68 | ResumeThread(targetInfo.hThread); |
| michael@0 | 69 | CloseHandle(targetInfo.hThread); |
| michael@0 | 70 | |
| michael@0 | 71 | // Return the process handle to the caller |
| michael@0 | 72 | *aProcessHandle = targetInfo.hProcess; |
| michael@0 | 73 | |
| michael@0 | 74 | return true; |
| michael@0 | 75 | } |
| michael@0 | 76 | |
| michael@0 | 77 | SandboxBroker::~SandboxBroker() |
| michael@0 | 78 | { |
| michael@0 | 79 | if (mPolicy) { |
| michael@0 | 80 | mPolicy->Release(); |
| michael@0 | 81 | mPolicy = nullptr; |
| michael@0 | 82 | } |
| michael@0 | 83 | } |
| michael@0 | 84 | |
| michael@0 | 85 | } |
