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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 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 "chrome/browser/nacl_host/nacl_broker_host_win.h" | |
| 6 | |
| 7 #include "base/base_switches.h" | |
| 8 #include "base/command_line.h" | |
| 9 #include "base/path_service.h" | |
| 10 #include "ipc/ipc_switches.h" | |
| 11 #include "chrome/browser/nacl_host/nacl_broker_service_win.h" | |
| 12 #include "components/nacl/browser/nacl_browser.h" | |
| 13 #include "components/nacl/common/nacl_cmd_line.h" | |
| 14 #include "components/nacl/common/nacl_messages.h" | |
| 15 #include "components/nacl/common/nacl_process_type.h" | |
| 16 #include "components/nacl/common/nacl_switches.h" | |
| 17 #include "content/public/browser/browser_child_process_host.h" | |
| 18 #include "content/public/browser/child_process_data.h" | |
| 19 #include "content/public/common/child_process_host.h" | |
| 20 #include "content/public/common/content_switches.h" | |
| 21 #include "content/public/common/sandboxed_process_launcher_delegate.h" | |
| 22 | |
| 23 namespace { | |
| 24 // NOTE: changes to this class need to be reviewed by the security team. | |
| 25 class NaClBrokerSandboxedProcessLauncherDelegate | |
| 26 : public content::SandboxedProcessLauncherDelegate { | |
| 27 public: | |
| 28 NaClBrokerSandboxedProcessLauncherDelegate() {} | |
| 29 virtual ~NaClBrokerSandboxedProcessLauncherDelegate() {} | |
| 30 | |
| 31 virtual void ShouldSandbox(bool* in_sandbox) OVERRIDE { | |
| 32 *in_sandbox = false; | |
| 33 } | |
| 34 | |
| 35 private: | |
| 36 DISALLOW_COPY_AND_ASSIGN(NaClBrokerSandboxedProcessLauncherDelegate); | |
| 37 }; | |
| 38 } // namespace | |
| 39 | |
| 40 NaClBrokerHost::NaClBrokerHost() : is_terminating_(false) { | |
| 41 process_.reset(content::BrowserChildProcessHost::Create( | |
| 42 PROCESS_TYPE_NACL_BROKER, this)); | |
| 43 } | |
| 44 | |
| 45 NaClBrokerHost::~NaClBrokerHost() { | |
| 46 } | |
| 47 | |
| 48 bool NaClBrokerHost::Init() { | |
| 49 // Create the channel that will be used for communicating with the broker. | |
| 50 std::string channel_id = process_->GetHost()->CreateChannel(); | |
| 51 if (channel_id.empty()) | |
| 52 return false; | |
| 53 | |
| 54 // Create the path to the nacl broker/loader executable. | |
| 55 base::FilePath nacl_path; | |
| 56 if (!nacl::NaClBrowser::GetInstance()->GetNaCl64ExePath(&nacl_path)) | |
| 57 return false; | |
| 58 | |
| 59 CommandLine* cmd_line = new CommandLine(nacl_path); | |
| 60 nacl::CopyNaClCommandLineArguments(cmd_line); | |
| 61 | |
| 62 cmd_line->AppendSwitchASCII(switches::kProcessType, | |
| 63 switches::kNaClBrokerProcess); | |
| 64 cmd_line->AppendSwitchASCII(switches::kProcessChannelID, channel_id); | |
| 65 if (nacl::NaClBrowser::GetDelegate()->DialogsAreSuppressed()) | |
| 66 cmd_line->AppendSwitch(switches::kNoErrorDialogs); | |
| 67 | |
| 68 process_->Launch(new NaClBrokerSandboxedProcessLauncherDelegate, cmd_line); | |
| 69 return true; | |
| 70 } | |
| 71 | |
| 72 bool NaClBrokerHost::OnMessageReceived(const IPC::Message& msg) { | |
| 73 bool handled = true; | |
| 74 IPC_BEGIN_MESSAGE_MAP(NaClBrokerHost, msg) | |
| 75 IPC_MESSAGE_HANDLER(NaClProcessMsg_LoaderLaunched, OnLoaderLaunched) | |
| 76 IPC_MESSAGE_HANDLER(NaClProcessMsg_DebugExceptionHandlerLaunched, | |
| 77 OnDebugExceptionHandlerLaunched) | |
| 78 IPC_MESSAGE_UNHANDLED(handled = false) | |
| 79 IPC_END_MESSAGE_MAP() | |
| 80 return handled; | |
| 81 } | |
| 82 | |
| 83 bool NaClBrokerHost::LaunchLoader(const std::string& loader_channel_id) { | |
| 84 return process_->Send( | |
| 85 new NaClProcessMsg_LaunchLoaderThroughBroker(loader_channel_id)); | |
| 86 } | |
| 87 | |
| 88 void NaClBrokerHost::OnLoaderLaunched(const std::string& loader_channel_id, | |
| 89 base::ProcessHandle handle) { | |
| 90 NaClBrokerService::GetInstance()->OnLoaderLaunched(loader_channel_id, handle); | |
| 91 } | |
| 92 | |
| 93 bool NaClBrokerHost::LaunchDebugExceptionHandler( | |
| 94 int32 pid, base::ProcessHandle process_handle, | |
| 95 const std::string& startup_info) { | |
| 96 base::ProcessHandle broker_process = process_->GetData().handle; | |
| 97 base::ProcessHandle handle_in_broker_process; | |
| 98 if (!DuplicateHandle(::GetCurrentProcess(), process_handle, | |
| 99 broker_process, &handle_in_broker_process, | |
| 100 0, /* bInheritHandle= */ FALSE, DUPLICATE_SAME_ACCESS)) | |
| 101 return false; | |
| 102 return process_->Send(new NaClProcessMsg_LaunchDebugExceptionHandler( | |
| 103 pid, handle_in_broker_process, startup_info)); | |
| 104 } | |
| 105 | |
| 106 void NaClBrokerHost::OnDebugExceptionHandlerLaunched(int32 pid, bool success) { | |
| 107 NaClBrokerService::GetInstance()->OnDebugExceptionHandlerLaunched(pid, | |
| 108 success); | |
| 109 } | |
| 110 | |
| 111 void NaClBrokerHost::StopBroker() { | |
| 112 is_terminating_ = true; | |
| 113 process_->Send(new NaClProcessMsg_StopBroker()); | |
| 114 } | |
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