Add m-esr52 at 52.6.0

3 files changed, 691 insertions, 0 deletions

diff --git a/security/sandbox/win/src/sandboxbroker/moz.build b/security/sandbox/win/src/sandboxbroker/moz.build
new file mode 100644
index 000000000..4a9d01cc5
--- /dev/null
+++ b/security/sandbox/win/src/sandboxbroker/moz.build
@@ -0,0 +1,33 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+SOURCES += [
+    'sandboxBroker.cpp',
+]
+
+EXPORTS += [
+    'sandboxBroker.h',
+]
+
+for var in ('UNICODE', '_UNICODE', 'SANDBOX_EXPORTS'):
+    DEFINES[var] = True
+
+LOCAL_INCLUDES += [
+    '/security/sandbox/chromium',
+]
+
+DISABLE_STL_WRAPPING = True
+
+OS_LIBS += [
+    'dbghelp',
+]
+
+if CONFIG['_MSC_VER']:
+    CXXFLAGS += [
+        '-wd4275', # non dll-interface class exception used as base for dll-interface class
+    ]
+
+FINAL_LIBRARY = 'xul'
diff --git a/security/sandbox/win/src/sandboxbroker/sandboxBroker.cpp b/security/sandbox/win/src/sandboxbroker/sandboxBroker.cpp
new file mode 100644
index 000000000..10b796268
--- /dev/null
+++ b/security/sandbox/win/src/sandboxbroker/sandboxBroker.cpp
@@ -0,0 +1,595 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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 "sandboxBroker.h"
+
+#include "base/win/windows_version.h"
+#include "mozilla/Assertions.h"
+#include "mozilla/Logging.h"
+#include "sandbox/win/src/sandbox.h"
+#include "sandbox/win/src/security_level.h"
+
+namespace mozilla
+{
+
+sandbox::BrokerServices *SandboxBroker::sBrokerService = nullptr;
+
+static LazyLogModule sSandboxBrokerLog("SandboxBroker");
+
+#define LOG_E(...) MOZ_LOG(sSandboxBrokerLog, LogLevel::Error, (__VA_ARGS__))
+
+/* static */
+void
+SandboxBroker::Initialize(sandbox::BrokerServices* aBrokerServices)
+{
+  sBrokerService = aBrokerServices;
+}
+
+SandboxBroker::SandboxBroker()
+{
+  if (sBrokerService) {
+    mPolicy = sBrokerService->CreatePolicy();
+  } else {
+    mPolicy = nullptr;
+  }
+}
+
+bool
+SandboxBroker::LaunchApp(const wchar_t *aPath,
+                         const wchar_t *aArguments,
+                         const bool aEnableLogging,
+                         void **aProcessHandle)
+{
+  if (!sBrokerService || !mPolicy) {
+    return false;
+  }
+
+  // Set stdout and stderr, to allow inheritance for logging.
+  mPolicy->SetStdoutHandle(::GetStdHandle(STD_OUTPUT_HANDLE));
+  mPolicy->SetStderrHandle(::GetStdHandle(STD_ERROR_HANDLE));
+
+  // If logging enabled, set up the policy.
+  if (aEnableLogging) {
+    ApplyLoggingPolicy();
+  }
+
+#if defined(DEBUG)
+  // Allow write access to TEMP directory in debug builds for logging purposes.
+  // The path from GetTempPathW can have a length up to MAX_PATH + 1, including
+  // the null, so we need MAX_PATH + 2, so we can add an * to the end.
+  wchar_t tempPath[MAX_PATH + 2];
+  uint32_t pathLen = ::GetTempPathW(MAX_PATH + 1, tempPath);
+  if (pathLen > 0) {
+    // GetTempPath path ends with \ and returns the length without the null.
+    tempPath[pathLen] = L'*';
+    tempPath[pathLen + 1] = L'\0';
+    mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                     sandbox::TargetPolicy::FILES_ALLOW_ANY, tempPath);
+  }
+#endif
+
+  // Ceate the sandboxed process
+  PROCESS_INFORMATION targetInfo = {0};
+  sandbox::ResultCode result;
+  result = sBrokerService->SpawnTarget(aPath, aArguments, mPolicy, &targetInfo);
+  if (sandbox::SBOX_ALL_OK != result) {
+    return false;
+  }
+
+  // The sandboxed process is started in a suspended state, resume it now that
+  // we've set things up.
+  ResumeThread(targetInfo.hThread);
+  CloseHandle(targetInfo.hThread);
+
+  // Return the process handle to the caller
+  *aProcessHandle = targetInfo.hProcess;
+
+  return true;
+}
+
+#if defined(MOZ_CONTENT_SANDBOX)
+void
+SandboxBroker::SetSecurityLevelForContentProcess(int32_t aSandboxLevel)
+{
+  MOZ_RELEASE_ASSERT(mPolicy, "mPolicy must be set before this call.");
+
+  sandbox::JobLevel jobLevel;
+  sandbox::TokenLevel accessTokenLevel;
+  sandbox::IntegrityLevel initialIntegrityLevel;
+  sandbox::IntegrityLevel delayedIntegrityLevel;
+
+  // The setting of these levels is pretty arbitrary, but they are a useful (if
+  // crude) tool while we are tightening the policy. Gaps are left to try and
+  // avoid changing their meaning.
+  MOZ_RELEASE_ASSERT(aSandboxLevel >= 1, "Should not be called with aSandboxLevel < 1");
+  if (aSandboxLevel >= 20) {
+    jobLevel = sandbox::JOB_LOCKDOWN;
+    accessTokenLevel = sandbox::USER_LOCKDOWN;
+    initialIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+    delayedIntegrityLevel = sandbox::INTEGRITY_LEVEL_UNTRUSTED;
+  } else if (aSandboxLevel >= 10) {
+    jobLevel = sandbox::JOB_RESTRICTED;
+    accessTokenLevel = sandbox::USER_LIMITED;
+    initialIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+    delayedIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+  } else if (aSandboxLevel >= 2) {
+    jobLevel = sandbox::JOB_INTERACTIVE;
+    accessTokenLevel = sandbox::USER_INTERACTIVE;
+    initialIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+    delayedIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+  } else if (aSandboxLevel == 1) {
+    jobLevel = sandbox::JOB_NONE;
+    accessTokenLevel = sandbox::USER_NON_ADMIN;
+    initialIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+    delayedIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+  }
+
+  sandbox::ResultCode result = mPolicy->SetJobLevel(jobLevel,
+                                                    0 /* ui_exceptions */);
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "Setting job level failed, have you set memory limit when jobLevel == JOB_NONE?");
+
+  // If the delayed access token is not restricted we don't want the initial one
+  // to be either, because it can interfere with running from a network drive.
+  sandbox::TokenLevel initialAccessTokenLevel =
+    (accessTokenLevel == sandbox::USER_UNPROTECTED ||
+     accessTokenLevel == sandbox::USER_NON_ADMIN)
+    ? sandbox::USER_UNPROTECTED : sandbox::USER_RESTRICTED_SAME_ACCESS;
+
+  result = mPolicy->SetTokenLevel(initialAccessTokenLevel, accessTokenLevel);
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "Lockdown level cannot be USER_UNPROTECTED or USER_LAST if initial level was USER_RESTRICTED_SAME_ACCESS");
+
+  result = mPolicy->SetIntegrityLevel(initialIntegrityLevel);
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "SetIntegrityLevel should never fail, what happened?");
+  result = mPolicy->SetDelayedIntegrityLevel(delayedIntegrityLevel);
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "SetDelayedIntegrityLevel should never fail, what happened?");
+
+  if (aSandboxLevel > 2) {
+    result = mPolicy->SetAlternateDesktop(true);
+    MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                       "Failed to create alternate desktop for sandbox.");
+  }
+
+  sandbox::MitigationFlags mitigations =
+    sandbox::MITIGATION_BOTTOM_UP_ASLR |
+    sandbox::MITIGATION_HEAP_TERMINATE |
+    sandbox::MITIGATION_SEHOP |
+    sandbox::MITIGATION_DEP_NO_ATL_THUNK |
+    sandbox::MITIGATION_DEP;
+
+  result = mPolicy->SetProcessMitigations(mitigations);
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "Invalid flags for SetProcessMitigations.");
+
+  mitigations =
+    sandbox::MITIGATION_STRICT_HANDLE_CHECKS |
+    sandbox::MITIGATION_DLL_SEARCH_ORDER;
+
+  result = mPolicy->SetDelayedProcessMitigations(mitigations);
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "Invalid flags for SetDelayedProcessMitigations.");
+
+  // Add the policy for the client side of a pipe. It is just a file
+  // in the \pipe\ namespace. We restrict it to pipes that start with
+  // "chrome." so the sandboxed process cannot connect to system services.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                            sandbox::TargetPolicy::FILES_ALLOW_ANY,
+                            L"\\??\\pipe\\chrome.*");
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "With these static arguments AddRule should never fail, what happened?");
+
+  // Add the policy for the client side of the crash server pipe.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                            sandbox::TargetPolicy::FILES_ALLOW_ANY,
+                            L"\\??\\pipe\\gecko-crash-server-pipe.*");
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "With these static arguments AddRule should never fail, what happened?");
+
+  // The content process needs to be able to duplicate named pipes back to the
+  // broker process, which are File type handles.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_HANDLES,
+                            sandbox::TargetPolicy::HANDLES_DUP_BROKER,
+                            L"File");
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "With these static arguments AddRule should never fail, what happened?");
+
+  // The content process needs to be able to duplicate shared memory handles,
+  // which are Section handles, to the broker process and other child processes.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_HANDLES,
+                            sandbox::TargetPolicy::HANDLES_DUP_BROKER,
+                            L"Section");
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "With these static arguments AddRule should never fail, what happened?");
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_HANDLES,
+                            sandbox::TargetPolicy::HANDLES_DUP_ANY,
+                            L"Section");
+  MOZ_RELEASE_ASSERT(sandbox::SBOX_ALL_OK == result,
+                     "With these static arguments AddRule should never fail, what happened?");
+}
+#endif
+
+#define SANDBOX_ENSURE_SUCCESS(result, message) \
+  do { \
+    MOZ_ASSERT(sandbox::SBOX_ALL_OK == result, message); \
+    if (sandbox::SBOX_ALL_OK != result) \
+      return false; \
+  } while (0)
+
+bool
+SandboxBroker::SetSecurityLevelForPluginProcess(int32_t aSandboxLevel)
+{
+  if (!mPolicy) {
+    return false;
+  }
+
+  sandbox::JobLevel jobLevel;
+  sandbox::TokenLevel accessTokenLevel;
+  sandbox::IntegrityLevel initialIntegrityLevel;
+  sandbox::IntegrityLevel delayedIntegrityLevel;
+
+  if (aSandboxLevel > 2) {
+    jobLevel = sandbox::JOB_UNPROTECTED;
+    accessTokenLevel = sandbox::USER_LIMITED;
+    initialIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+    delayedIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+  } else if (aSandboxLevel == 2) {
+    jobLevel = sandbox::JOB_UNPROTECTED;
+    accessTokenLevel = sandbox::USER_INTERACTIVE;
+    initialIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+    delayedIntegrityLevel = sandbox::INTEGRITY_LEVEL_LOW;
+  } else {
+    jobLevel = sandbox::JOB_NONE;
+    accessTokenLevel = sandbox::USER_NON_ADMIN;
+    initialIntegrityLevel = sandbox::INTEGRITY_LEVEL_MEDIUM;
+    delayedIntegrityLevel = sandbox::INTEGRITY_LEVEL_MEDIUM;
+  }
+
+  sandbox::ResultCode result = mPolicy->SetJobLevel(jobLevel,
+                                                    0 /* ui_exceptions */);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "Setting job level failed, have you set memory limit when jobLevel == JOB_NONE?");
+
+  result = mPolicy->SetTokenLevel(sandbox::USER_RESTRICTED_SAME_ACCESS,
+                                  accessTokenLevel);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "Lockdown level cannot be USER_UNPROTECTED or USER_LAST if initial level was USER_RESTRICTED_SAME_ACCESS");
+
+  result = mPolicy->SetIntegrityLevel(initialIntegrityLevel);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "SetIntegrityLevel should never fail, what happened?");
+
+  result = mPolicy->SetDelayedIntegrityLevel(delayedIntegrityLevel);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "SetDelayedIntegrityLevel should never fail, what happened?");
+
+  sandbox::MitigationFlags mitigations =
+    sandbox::MITIGATION_BOTTOM_UP_ASLR |
+    sandbox::MITIGATION_HEAP_TERMINATE |
+    sandbox::MITIGATION_SEHOP |
+    sandbox::MITIGATION_DEP_NO_ATL_THUNK |
+    sandbox::MITIGATION_DEP;
+
+  result = mPolicy->SetProcessMitigations(mitigations);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "Invalid flags for SetProcessMitigations.");
+
+  // Add the policy for the client side of a pipe. It is just a file
+  // in the \pipe\ namespace. We restrict it to pipes that start with
+  // "chrome." so the sandboxed process cannot connect to system services.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                            sandbox::TargetPolicy::FILES_ALLOW_ANY,
+                            L"\\??\\pipe\\chrome.*");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  // Add the policy for the client side of the crash server pipe.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                            sandbox::TargetPolicy::FILES_ALLOW_ANY,
+                            L"\\??\\pipe\\gecko-crash-server-pipe.*");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  // The NPAPI process needs to be able to duplicate shared memory to the
+  // content process and broker process, which are Section type handles.
+  // Content and broker are for e10s and non-e10s cases.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_HANDLES,
+                            sandbox::TargetPolicy::HANDLES_DUP_ANY,
+                            L"Section");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_HANDLES,
+                            sandbox::TargetPolicy::HANDLES_DUP_BROKER,
+                            L"Section");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  // The following is required for the Java plugin.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                            sandbox::TargetPolicy::FILES_ALLOW_ANY,
+                            L"\\??\\pipe\\jpi2_pid*_pipe*");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  // These register keys are used by the file-browser dialog box.  They
+  // remember the most-recently-used folders.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_ANY,
+                            L"HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ComDlg32\\OpenSavePidlMRU\\*");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_ANY,
+                            L"HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ComDlg32\\LastVisitedPidlMRULegacy\\*");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  return true;
+}
+
+bool
+SandboxBroker::SetSecurityLevelForGMPlugin(SandboxLevel aLevel)
+{
+  if (!mPolicy) {
+    return false;
+  }
+
+  auto result = mPolicy->SetJobLevel(sandbox::JOB_LOCKDOWN, 0);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "SetJobLevel should never fail with these arguments, what happened?");
+  auto level = (aLevel == Restricted) ?
+    sandbox::USER_RESTRICTED : sandbox::USER_LOCKDOWN;
+  result = mPolicy->SetTokenLevel(sandbox::USER_RESTRICTED_SAME_ACCESS, level);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "SetTokenLevel should never fail with these arguments, what happened?");
+
+  result = mPolicy->SetAlternateDesktop(true);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "Failed to create alternate desktop for sandbox.");
+
+  result = mPolicy->SetIntegrityLevel(sandbox::INTEGRITY_LEVEL_LOW);
+  MOZ_ASSERT(sandbox::SBOX_ALL_OK == result,
+             "SetIntegrityLevel should never fail with these arguments, what happened?");
+
+  result =
+    mPolicy->SetDelayedIntegrityLevel(sandbox::INTEGRITY_LEVEL_UNTRUSTED);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "SetIntegrityLevel should never fail with these arguments, what happened?");
+
+  sandbox::MitigationFlags mitigations =
+    sandbox::MITIGATION_BOTTOM_UP_ASLR |
+    sandbox::MITIGATION_HEAP_TERMINATE |
+    sandbox::MITIGATION_SEHOP |
+    sandbox::MITIGATION_DEP_NO_ATL_THUNK |
+    sandbox::MITIGATION_DEP;
+
+  result = mPolicy->SetProcessMitigations(mitigations);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "Invalid flags for SetProcessMitigations.");
+
+  mitigations =
+    sandbox::MITIGATION_STRICT_HANDLE_CHECKS |
+    sandbox::MITIGATION_DLL_SEARCH_ORDER;
+
+  result = mPolicy->SetDelayedProcessMitigations(mitigations);
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "Invalid flags for SetDelayedProcessMitigations.");
+
+  // Add the policy for the client side of a pipe. It is just a file
+  // in the \pipe\ namespace. We restrict it to pipes that start with
+  // "chrome." so the sandboxed process cannot connect to system services.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                            sandbox::TargetPolicy::FILES_ALLOW_ANY,
+                            L"\\??\\pipe\\chrome.*");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  // Add the policy for the client side of the crash server pipe.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                            sandbox::TargetPolicy::FILES_ALLOW_ANY,
+                            L"\\??\\pipe\\gecko-crash-server-pipe.*");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+#ifdef DEBUG
+  // The plugin process can't create named events, but we'll
+  // make an exception for the events used in logging. Removing
+  // this will break EME in debug builds.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_SYNC,
+                            sandbox::TargetPolicy::EVENTS_ALLOW_ANY,
+                            L"ChromeIPCLog.*");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+#endif
+
+  // The following rules were added because, during analysis of an EME
+  // plugin during development, these registry keys were accessed when
+  // loading the plugin. Commenting out these policy exceptions caused
+  // plugin loading to fail, so they are necessary for proper functioning
+  // of at least one EME plugin.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_CURRENT_USER");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_CURRENT_USER\\Control Panel\\Desktop");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_CURRENT_USER\\Control Panel\\Desktop\\LanguageConfiguration");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\SideBySide");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+
+  // The following rules were added because, during analysis of an EME
+  // plugin during development, these registry keys were accessed when
+  // loading the plugin. Commenting out these policy exceptions did not
+  // cause anything to break during initial testing, but might cause
+  // unforeseen issues down the road.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_LOCAL_MACHINE\\SOFTWARE\\Policies\\Microsoft\\MUI\\Settings");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_CURRENT_USER\\Software\\Policies\\Microsoft\\Control Panel\\Desktop");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_CURRENT_USER\\Control Panel\\Desktop\\PreferredUILanguages");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\SideBySide\\PreferExternalManifest");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+  // The following rules were added to allow a GMP to be loaded when any
+  // AppLocker DLL rules are specified. If the rules specifically block the DLL
+  // then it will not load.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                            sandbox::TargetPolicy::FILES_ALLOW_READONLY,
+                            L"\\Device\\SrpDevice");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Control\\Srp\\GP\\");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+  // On certain Windows versions there is a double slash before GP in the path.
+  result = mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                            sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                            L"HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Control\\Srp\\\\GP\\");
+  SANDBOX_ENSURE_SUCCESS(result,
+                         "With these static arguments AddRule should never fail, what happened?");
+
+
+  return true;
+}
+#undef SANDBOX_ENSURE_SUCCESS
+
+bool
+SandboxBroker::AllowReadFile(wchar_t const *file)
+{
+  if (!mPolicy) {
+    return false;
+  }
+
+  auto result =
+    mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                     sandbox::TargetPolicy::FILES_ALLOW_READONLY,
+                     file);
+  if (sandbox::SBOX_ALL_OK != result) {
+    LOG_E("Failed (ResultCode %d) to add read access to: %S", result, file);
+    return false;
+  }
+
+  return true;
+}
+
+bool
+SandboxBroker::AllowReadWriteFile(wchar_t const *file)
+{
+  if (!mPolicy) {
+    return false;
+  }
+
+  auto result =
+    mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                     sandbox::TargetPolicy::FILES_ALLOW_ANY,
+                     file);
+  if (sandbox::SBOX_ALL_OK != result) {
+    LOG_E("Failed (ResultCode %d) to add read/write access to: %S",
+          result, file);
+    return false;
+  }
+
+  return true;
+}
+
+bool
+SandboxBroker::AllowDirectory(wchar_t const *dir)
+{
+  if (!mPolicy) {
+    return false;
+  }
+
+  auto result =
+    mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_FILES,
+                     sandbox::TargetPolicy::FILES_ALLOW_DIR_ANY,
+                     dir);
+  if (sandbox::SBOX_ALL_OK != result) {
+    LOG_E("Failed (ResultCode %d) to add directory access to: %S", result, dir);
+    return false;
+  }
+
+  return true;
+}
+
+bool
+SandboxBroker::AddTargetPeer(HANDLE aPeerProcess)
+{
+  if (!sBrokerService) {
+    return false;
+  }
+
+  sandbox::ResultCode result = sBrokerService->AddTargetPeer(aPeerProcess);
+  return (sandbox::SBOX_ALL_OK == result);
+}
+
+void
+SandboxBroker::ApplyLoggingPolicy()
+{
+  MOZ_ASSERT(mPolicy);
+
+  // Add dummy rules, so that we can log in the interception code.
+  // We already have a file interception set up for the client side of pipes.
+  // Also, passing just "dummy" for file system policy causes win_utils.cc
+  // IsReparsePoint() to loop.
+  mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_NAMED_PIPES,
+                  sandbox::TargetPolicy::NAMEDPIPES_ALLOW_ANY, L"dummy");
+  mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_PROCESS,
+                  sandbox::TargetPolicy::PROCESS_MIN_EXEC, L"dummy");
+  mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_REGISTRY,
+                  sandbox::TargetPolicy::REG_ALLOW_READONLY,
+                  L"HKEY_CURRENT_USER\\dummy");
+  mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_SYNC,
+                  sandbox::TargetPolicy::EVENTS_ALLOW_READONLY, L"dummy");
+  mPolicy->AddRule(sandbox::TargetPolicy::SUBSYS_HANDLES,
+                  sandbox::TargetPolicy::HANDLES_DUP_BROKER, L"dummy");
+}
+
+SandboxBroker::~SandboxBroker()
+{
+  if (mPolicy) {
+    mPolicy->Release();
+    mPolicy = nullptr;
+  }
+}
+
+}
diff --git a/security/sandbox/win/src/sandboxbroker/sandboxBroker.h b/security/sandbox/win/src/sandboxbroker/sandboxBroker.h
new file mode 100644
index 000000000..3f73ec890
--- /dev/null
+++ b/security/sandbox/win/src/sandboxbroker/sandboxBroker.h
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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/. */
+
+#ifndef __SECURITY_SANDBOX_SANDBOXBROKER_H__
+#define __SECURITY_SANDBOX_SANDBOXBROKER_H__
+
+#include <stdint.h>
+#include <windows.h>
+
+namespace sandbox {
+  class BrokerServices;
+  class TargetPolicy;
+}
+
+namespace mozilla {
+
+class SandboxBroker
+{
+public:
+  SandboxBroker();
+
+  static void Initialize(sandbox::BrokerServices* aBrokerServices);
+
+  bool LaunchApp(const wchar_t *aPath,
+                 const wchar_t *aArguments,
+                 const bool aEnableLogging,
+                 void **aProcessHandle);
+  virtual ~SandboxBroker();
+
+  // Security levels for different types of processes
+#if defined(MOZ_CONTENT_SANDBOX)
+  void SetSecurityLevelForContentProcess(int32_t aSandboxLevel);
+#endif
+  bool SetSecurityLevelForPluginProcess(int32_t aSandboxLevel);
+  enum SandboxLevel {
+    LockDown,
+    Restricted
+  };
+  bool SetSecurityLevelForGMPlugin(SandboxLevel aLevel);
+
+  // File system permissions
+  bool AllowReadFile(wchar_t const *file);
+  bool AllowReadWriteFile(wchar_t const *file);
+  bool AllowDirectory(wchar_t const *dir);
+
+  // Exposes AddTargetPeer from broker services, so that none sandboxed
+  // processes can be added as handle duplication targets.
+  bool AddTargetPeer(HANDLE aPeerProcess);
+
+  // Set up dummy interceptions via the broker, so we can log calls.
+  void ApplyLoggingPolicy();
+
+private:
+  static sandbox::BrokerServices *sBrokerService;
+  sandbox::TargetPolicy *mPolicy;
+};
+
+} // mozilla
+
+#endif