1 // Copyright 2016 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "components/nacl/common/nacl_service.h" 6 7 #include <memory> 8 #include <string> 9 10 #include "base/command_line.h" 11 #include "base/task/single_thread_task_runner.h" 12 #include "build/build_config.h" 13 #include "mojo/core/embedder/scoped_ipc_support.h" 14 #include "mojo/public/cpp/platform/platform_channel.h" 15 #include "mojo/public/cpp/platform/platform_channel_endpoint.h" 16 #include "mojo/public/cpp/platform/platform_handle.h" 17 #include "mojo/public/cpp/system/invitation.h" 18 19 #if BUILDFLAG(IS_POSIX) 20 #include "base/files/scoped_file.h" 21 #include "base/posix/global_descriptors.h" 22 #include "content/public/common/content_descriptors.h" 23 #endif 24 25 #if BUILDFLAG(IS_APPLE) 26 #include "base/mac/mach_port_rendezvous.h" 27 #endif 28 29 namespace { 30 GetMojoInvitation()31mojo::IncomingInvitation GetMojoInvitation() { 32 mojo::PlatformChannelEndpoint endpoint; 33 #if BUILDFLAG(IS_WIN) 34 endpoint = mojo::PlatformChannel::RecoverPassedEndpointFromCommandLine( 35 *base::CommandLine::ForCurrentProcess()); 36 #elif BUILDFLAG(IS_APPLE) 37 auto* client = base::MachPortRendezvousClient::GetInstance(); 38 if (client) { 39 endpoint = mojo::PlatformChannelEndpoint( 40 mojo::PlatformHandle(client->TakeReceiveRight('mojo'))); 41 } 42 #else 43 endpoint = mojo::PlatformChannelEndpoint(mojo::PlatformHandle(base::ScopedFD( 44 base::GlobalDescriptors::GetInstance()->Get(kMojoIPCChannel)))); 45 #endif // !BUILDFLAG(IS_WIN) 46 DCHECK(endpoint.is_valid()); 47 return mojo::IncomingInvitation::Accept(std::move(endpoint)); 48 } 49 50 } // namespace 51 NaClService(scoped_refptr<base::SingleThreadTaskRunner> ipc_task_runner)52NaClService::NaClService( 53 scoped_refptr<base::SingleThreadTaskRunner> ipc_task_runner) 54 : ipc_support_(std::move(ipc_task_runner), 55 mojo::core::ScopedIPCSupport::ShutdownPolicy::FAST) {} 56 57 NaClService::~NaClService() = default; 58 TakeChannelPipe()59mojo::ScopedMessagePipeHandle NaClService::TakeChannelPipe() { 60 return GetMojoInvitation().ExtractMessagePipe(0); 61 } 62