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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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