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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/utility_sandbox_delegate.h"
#include "base/check.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "components/services/screen_ai/buildflags/buildflags.h"
#include "content/public/common/sandboxed_process_launcher_delegate.h"
#include "content/public/common/zygote/zygote_buildflags.h"
#include "ppapi/buildflags/buildflags.h"
#include "printing/buildflags/buildflags.h"
#include "sandbox/policy/mojom/sandbox.mojom.h"
#if BUILDFLAG(USE_ZYGOTE_HANDLE)
#include "content/common/zygote/zygote_handle_impl_linux.h"
#include "sandbox/policy/sandbox_type.h"
#endif
#if BUILDFLAG(IS_CHROMEOS_ASH)
#include "chromeos/ash/components/assistant/buildflags.h"
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
namespace content {
UtilitySandboxedProcessLauncherDelegate::
UtilitySandboxedProcessLauncherDelegate(
sandbox::mojom::Sandbox sandbox_type,
const base::EnvironmentMap& env,
const base::CommandLine& cmd_line)
:
#if BUILDFLAG(IS_POSIX)
env_(env),
#endif
sandbox_type_(sandbox_type),
cmd_line_(cmd_line) {
#if DCHECK_IS_ON()
bool supported_sandbox_type =
sandbox_type_ == sandbox::mojom::Sandbox::kNoSandbox ||
#if BUILDFLAG(IS_WIN)
sandbox_type_ ==
sandbox::mojom::Sandbox::kNoSandboxAndElevatedPrivileges ||
sandbox_type_ == sandbox::mojom::Sandbox::kXrCompositing ||
sandbox_type_ == sandbox::mojom::Sandbox::kPdfConversion ||
sandbox_type_ == sandbox::mojom::Sandbox::kIconReader ||
sandbox_type_ == sandbox::mojom::Sandbox::kMediaFoundationCdm ||
sandbox_type_ == sandbox::mojom::Sandbox::kWindowsSystemProxyResolver ||
#endif
#if BUILDFLAG(IS_MAC)
sandbox_type_ == sandbox::mojom::Sandbox::kMirroring ||
#endif
sandbox_type_ == sandbox::mojom::Sandbox::kUtility ||
sandbox_type_ == sandbox::mojom::Sandbox::kService ||
sandbox_type_ == sandbox::mojom::Sandbox::kServiceWithJit ||
sandbox_type_ == sandbox::mojom::Sandbox::kNetwork ||
sandbox_type_ == sandbox::mojom::Sandbox::kCdm ||
#if BUILDFLAG(ENABLE_OOP_PRINTING)
sandbox_type_ == sandbox::mojom::Sandbox::kPrintBackend ||
#endif
sandbox_type_ == sandbox::mojom::Sandbox::kPrintCompositor ||
#if BUILDFLAG(ENABLE_PPAPI)
sandbox_type_ == sandbox::mojom::Sandbox::kPpapi ||
#endif
#if BUILDFLAG(IS_FUCHSIA)
sandbox_type_ == sandbox::mojom::Sandbox::kVideoCapture ||
#endif
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS_ASH)
sandbox_type_ == sandbox::mojom::Sandbox::kHardwareVideoDecoding ||
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(IS_CHROMEOS_ASH)
sandbox_type_ == sandbox::mojom::Sandbox::kIme ||
sandbox_type_ == sandbox::mojom::Sandbox::kTts ||
#if BUILDFLAG(ENABLE_CROS_LIBASSISTANT)
sandbox_type_ == sandbox::mojom::Sandbox::kLibassistant ||
#endif // BUILDFLAG(ENABLE_CROS_LIBASSISTANT)
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(ENABLE_SCREEN_AI_SERVICE)
sandbox_type_ == sandbox::mojom::Sandbox::kScreenAI ||
#endif
sandbox_type_ == sandbox::mojom::Sandbox::kAudio ||
sandbox_type_ == sandbox::mojom::Sandbox::kSpeechRecognition;
DCHECK(supported_sandbox_type);
#endif // DCHECK_IS_ON()
}
UtilitySandboxedProcessLauncherDelegate::
~UtilitySandboxedProcessLauncherDelegate() {}
sandbox::mojom::Sandbox
UtilitySandboxedProcessLauncherDelegate::GetSandboxType() {
return sandbox_type_;
}
#if BUILDFLAG(IS_POSIX)
base::EnvironmentMap UtilitySandboxedProcessLauncherDelegate::GetEnvironment() {
return env_;
}
#endif // BUILDFLAG(IS_POSIX)
#if BUILDFLAG(USE_ZYGOTE_HANDLE)
ZygoteHandle UtilitySandboxedProcessLauncherDelegate::GetZygote() {
// If the sandbox has been disabled for a given type, don't use a zygote.
if (sandbox::policy::IsUnsandboxedSandboxType(sandbox_type_))
return nullptr;
// Utility processes which need specialized sandboxes fork from the
// unsandboxed zygote and then apply their actual sandboxes in the forked
// process upon startup.
if (sandbox_type_ == sandbox::mojom::Sandbox::kNetwork ||
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS_ASH)
sandbox_type_ == sandbox::mojom::Sandbox::kHardwareVideoDecoding ||
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(IS_CHROMEOS_ASH)
sandbox_type_ == sandbox::mojom::Sandbox::kIme ||
sandbox_type_ == sandbox::mojom::Sandbox::kTts ||
#if BUILDFLAG(ENABLE_CROS_LIBASSISTANT)
sandbox_type_ == sandbox::mojom::Sandbox::kLibassistant ||
#endif // BUILDFLAG(ENABLE_CROS_LIBASSISTANT)
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
sandbox_type_ == sandbox::mojom::Sandbox::kAudio ||
#if BUILDFLAG(ENABLE_OOP_PRINTING)
sandbox_type_ == sandbox::mojom::Sandbox::kPrintBackend ||
#endif
#if BUILDFLAG(ENABLE_SCREEN_AI_SERVICE)
sandbox_type_ == sandbox::mojom::Sandbox::kScreenAI ||
#endif
sandbox_type_ == sandbox::mojom::Sandbox::kSpeechRecognition) {
return GetUnsandboxedZygote();
}
// All other types use the pre-sandboxed zygote.
return GetGenericZygote();
}
#endif // BUILDFLAG(USE_ZYGOTE_HANDLE)
} // namespace content
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