nacl_process_host.cc revision 03b57e008b61dfcb1fbad3aea950ae0e001748b0
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "components/nacl/browser/nacl_process_host.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 77d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#include <algorithm> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <vector> 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/base_switches.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/command_line.h" 14a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles)#include "base/file_util.h" 15ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch#include "base/message_loop/message_loop.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/metrics/histogram.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/path_service.h" 1858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "base/process/launch.h" 19bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3Ben Murdoch#include "base/process/process_iterator.h" 203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#include "base/rand_util.h" 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/strings/string_number_conversions.h" 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/strings/string_split.h" 23868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/string_util.h" 24868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/stringprintf.h" 25868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/utf_string_conversions.h" 26f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "base/threading/sequenced_worker_pool.h" 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/win/windows_version.h" 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "build/build_config.h" 290f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)#include "components/nacl/browser/nacl_browser.h" 30cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include "components/nacl/browser/nacl_browser_delegate.h" 31f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "components/nacl/browser/nacl_host_message_filter.h" 32ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch#include "components/nacl/common/nacl_cmd_line.h" 33a3f7b4e666c476898878fa745f637129375cd889Ben Murdoch#include "components/nacl/common/nacl_host_messages.h" 34a3f7b4e666c476898878fa745f637129375cd889Ben Murdoch#include "components/nacl/common/nacl_messages.h" 357dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#include "components/nacl/common/nacl_process_type.h" 36eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "components/nacl/common/nacl_switches.h" 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/browser_child_process_host.h" 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/browser_ppapi_host.h" 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/child_process_data.h" 405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "content/public/browser/plugin_service.h" 416d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)#include "content/public/browser/render_process_host.h" 426d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)#include "content/public/browser/web_contents.h" 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/common/child_process_host.h" 447dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#include "content/public/common/content_switches.h" 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "content/public/common/process_type.h" 46a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#include "content/public/common/sandboxed_process_launcher_delegate.h" 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ipc/ipc_channel.h" 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ipc/ipc_switches.h" 495f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include "native_client/src/public/nacl_file_info.h" 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "native_client/src/shared/imc/nacl_imc_c.h" 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_util.h" 52c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "net/socket/tcp_listen_socket.h" 537dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#include "ppapi/host/host_factory.h" 54c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "ppapi/host/ppapi_host.h" 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/proxy/ppapi_messages.h" 56effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "ppapi/shared_impl/ppapi_constants.h" 575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "ppapi/shared_impl/ppapi_nacl_plugin_args.h" 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_POSIX) 60effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <fcntl.h> 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ipc/ipc_channel_posix.h" 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(OS_WIN) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/threading/thread.h" 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/win/scoped_handle.h" 69f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "components/nacl/browser/nacl_broker_service_win.h" 70a3f7b4e666c476898878fa745f637129375cd889Ben Murdoch#include "components/nacl/common/nacl_debug_exception_handler_win.h" 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/common/sandbox_init.h" 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::BrowserThread; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::ChildProcessData; 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::ChildProcessHost; 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using ppapi::proxy::SerializedHandle; 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 793551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#if defined(OS_WIN) 803551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 813551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)namespace { 823551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 833551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// Looks for the largest contiguous unallocated region of address 843551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// space and returns it via |*out_addr| and |*out_size|. 853551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void FindAddressSpace(base::ProcessHandle process, 863551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) char** out_addr, size_t* out_size) { 873551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_addr = NULL; 883551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_size = 0; 893551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) char* addr = 0; 903551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) while (true) { 913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) MEMORY_BASIC_INFORMATION info; 923551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) size_t result = VirtualQueryEx(process, static_cast<void*>(addr), 933551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) &info, sizeof(info)); 943551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (result < sizeof(info)) 953551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) break; 963551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (info.State == MEM_FREE && info.RegionSize > *out_size) { 973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_addr = addr; 983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_size = info.RegionSize; 993551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 1003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) addr += info.RegionSize; 1013551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 1023551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 1033551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 104a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#ifdef _DLL 105a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 106a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)bool IsInPath(const std::string& path_env_var, const std::string& dir) { 107a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::vector<std::string> split; 108a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::SplitString(path_env_var, ';', &split); 109a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) for (std::vector<std::string>::const_iterator i(split.begin()); 110a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) i != split.end(); 111a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ++i) { 112a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (*i == dir) 113a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 114a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 115a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return false; 116a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 117a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 118a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif // _DLL 119a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} // namespace 1213551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1223551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)namespace nacl { 1233551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1243551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// Allocates |size| bytes of address space in the given process at a 1253551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// randomised address. 1263551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void* AllocateAddressSpaceASLR(base::ProcessHandle process, size_t size) { 1273551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) char* addr; 1283551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) size_t avail_size; 1293551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) FindAddressSpace(process, &addr, &avail_size); 1303551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (avail_size < size) 1313551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return NULL; 1323551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) size_t offset = base::RandGenerator(avail_size - size); 1333551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const int kPageSize = 0x10000; 1343551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) void* request_addr = 1353551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) reinterpret_cast<void*>(reinterpret_cast<uint64>(addr + offset) 1363551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) & ~(kPageSize - 1)); 1373551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return VirtualAllocEx(process, request_addr, size, 1383551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) MEM_RESERVE, PAGE_NOACCESS); 1393551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 1403551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1413551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} // namespace nacl 1423551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1433551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#endif // defined(OS_WIN) 1443551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool RunningOnWOW64() { 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (base::win::OSInfo::GetInstance()->wow64_status() == 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::win::OSInfo::WOW64_ENABLED); 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 152a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// NOTE: changes to this class need to be reviewed by the security team. 1552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class NaClSandboxedProcessLauncherDelegate 1562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : public content::SandboxedProcessLauncherDelegate { 1572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 158a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) NaClSandboxedProcessLauncherDelegate(ChildProcessHost* host) 159a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_POSIX) 160a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) : ipc_fd_(host->TakeClientFileDescriptor()) 161a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif 162a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) {} 163a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual ~NaClSandboxedProcessLauncherDelegate() {} 1652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 166a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_WIN) 1672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void PostSpawnTarget(base::ProcessHandle process) { 1682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // For Native Client sel_ldr processes on 32-bit Windows, reserve 1 GB of 1692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // address space to prevent later failure due to address space fragmentation 1702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // from .dll loading. The NaCl process will attempt to locate this space by 1712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // scanning the address space using VirtualQuery. 1722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(bbudge) Handle the --no-sandbox case. 1732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // http://code.google.com/p/nativeclient/issues/detail?id=2131 1743551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const SIZE_T kNaClSandboxSize = 1 << 30; 1753551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (!nacl::AllocateAddressSpaceASLR(process, kNaClSandboxSize)) { 1762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DLOG(WARNING) << "Failed to reserve address space for Native Client"; 1772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 179a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#elif defined(OS_POSIX) 180a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual bool ShouldUseZygote() OVERRIDE { 181a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 182a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 183a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual int GetIpcFd() OVERRIDE { 184a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return ipc_fd_; 185a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 1862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif // OS_WIN 1872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 188a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) private: 189a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_POSIX) 190a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) int ipc_fd_; 191a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif // OS_POSIX 192a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)}; 193a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void SetCloseOnExec(NaClHandle fd) { 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_POSIX) 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = fcntl(fd, F_GETFD); 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_NE(flags, -1); 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc = fcntl(fd, F_SETFD, flags | FD_CLOEXEC); 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_EQ(rc, 0); 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool ShareHandleToSelLdr( 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ProcessHandle processh, 2052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle sourceh, 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool close_source, 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::vector<nacl::FileDescriptor> *handles_for_sel_ldr) { 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HANDLE channel; 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = DUPLICATE_SAME_ACCESS; 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (close_source) 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) flags |= DUPLICATE_CLOSE_SOURCE; 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!DuplicateHandle(GetCurrentProcess(), 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<HANDLE>(sourceh), 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) processh, 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &channel, 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 0, // Unused given DUPLICATE_SAME_ACCESS. 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FALSE, 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) flags)) { 2202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "DuplicateHandle() failed"; 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) handles_for_sel_ldr->push_back( 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<nacl::FileDescriptor>(channel)); 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl::FileDescriptor channel; 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) channel.fd = sourceh; 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) channel.auto_close = close_source; 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) handles_for_sel_ldr->push_back(channel); 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 236f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)namespace nacl { 237f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NaClProcessHost::NaClInternal { 2392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle socket_for_renderer; 2402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle socket_for_sel_ldr; 2412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClInternal() 2432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : socket_for_renderer(NACL_INVALID_HANDLE), 2442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) socket_for_sel_ldr(NACL_INVALID_HANDLE) { } 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ----------------------------------------------------------------------------- 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 249effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochunsigned NaClProcessHost::keepalive_throttle_interval_milliseconds_ = 250effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch ppapi::kKeepaliveThrottleIntervalDefaultMilliseconds; 251effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NaClProcessHost::NaClProcessHost(const GURL& manifest_url, 253116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::File nexe_file, 2545f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) const NaClFileToken& nexe_token, 2556d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) ppapi::PpapiPermissions permissions, 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int render_view_id, 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32 permission_bits, 2582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool uses_irt, 259a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) bool uses_nonsfi_mode, 260c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool enable_dyncode_syscalls, 2617d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) bool enable_exception_handling, 2623551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) bool enable_crash_throttling, 263c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool off_the_record, 264c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const base::FilePath& profile_directory) 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : manifest_url_(manifest_url), 266116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch nexe_file_(nexe_file.Pass()), 2675f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) nexe_token_(nexe_token), 2686d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) permissions_(permissions), 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_launched_by_broker_(false), 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reply_msg_(NULL), 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) debug_exception_handler_requested_(false), 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) internal_(new NaClInternal()), 277c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) weak_factory_(this), 2782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) uses_irt_(uses_irt), 279a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) uses_nonsfi_mode_(uses_nonsfi_mode), 2807d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) enable_debug_stub_(false), 281c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) enable_dyncode_syscalls_(enable_dyncode_syscalls), 2827d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) enable_exception_handling_(enable_exception_handling), 2833551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) enable_crash_throttling_(enable_crash_throttling), 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) off_the_record_(off_the_record), 285c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) profile_directory_(profile_directory), 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) render_view_id_(render_view_id) { 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_.reset(content::BrowserChildProcessHost::Create( 2882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PROCESS_TYPE_NACL_LOADER, this)); 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Set the display name so the user knows what plugin the process is running. 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We aren't on the UI thread so getting the pref locale for language 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // formatting isn't possible, so IDN will be lost, but this is probably OK 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // for this use case. 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->SetName(net::FormatUrl(manifest_url_, std::string())); 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_debug_stub_ = CommandLine::ForCurrentProcess()->HasSwitch( 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kEnableNaClDebug); 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NaClProcessHost::~NaClProcessHost() { 301424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // Report exit status only if the process was successfully started. 302424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (process_->GetData().handle != base::kNullProcessHandle) { 303424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) int exit_code = 0; 304424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) process_->GetTerminationStatus(false /* known_dead */, &exit_code); 305424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) std::string message = 306424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) base::StringPrintf("NaCl process exited with status %i (0x%x)", 307424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) exit_code, exit_code); 308424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (exit_code == 0) { 309f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) VLOG(1) << message; 310424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) } else { 311424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) LOG(ERROR) << message; 312424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) } 313cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) NaClBrowser::GetInstance()->OnProcessEnd(process_->GetData().id); 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (internal_->socket_for_renderer != NACL_INVALID_HANDLE) { 3172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (NaClClose(internal_->socket_for_renderer) != 0) { 3182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NOTREACHED() << "NaClClose() failed"; 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (internal_->socket_for_sel_ldr != NACL_INVALID_HANDLE) { 3232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (NaClClose(internal_->socket_for_sel_ldr) != 0) { 3242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NOTREACHED() << "NaClClose() failed"; 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (reply_msg_) { 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The process failed to launch for some reason. 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Don't keep the renderer hanging. 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reply_msg_->set_reply_error(); 3327d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) nacl_host_message_filter_->Send(reply_msg_); 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (process_launched_by_broker_) { 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClBrokerService::GetInstance()->OnLoaderDied(); 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3413551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void NaClProcessHost::OnProcessCrashed(int exit_status) { 3423551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (enable_crash_throttling_ && 3433551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) !CommandLine::ForCurrentProcess()->HasSwitch( 3443551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) switches::kDisablePnaclCrashThrottling)) { 345f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->OnProcessCrashed(); 3463551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 3473551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 3483551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This is called at browser startup. 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 3518bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)void NaClProcessHost::EarlyStartup() { 352f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->EarlyStartup(); 353cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // Inform NaClBrowser that we exist and will have a debug port at some point. 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_LINUX) && !defined(OS_CHROMEOS) 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Open the IRT file early to make sure that it isn't replaced out from 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // under us by autoupdate. 357f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->EnsureIrtAvailable(); 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine* cmd = CommandLine::ForCurrentProcess(); 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN( 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NaCl.nacl-gdb", 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !cmd->GetSwitchValuePath(switches::kNaClGdb).empty()); 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN( 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NaCl.nacl-gdb-script", 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !cmd->GetSwitchValuePath(switches::kNaClGdbScript).empty()); 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN( 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NaCl.enable-nacl-debug", 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd->HasSwitch(switches::kEnableNaClDebug)); 369a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string nacl_debug_mask = 370a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) cmd->GetSwitchValueASCII(switches::kNaClDebugMask); 371a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // By default, exclude debugging SSH and the PNaCl translator. 372a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // about::flags only allows empty flags as the default, so replace 373a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // the empty setting with the default. To debug all apps, use a wild-card. 374a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (nacl_debug_mask.empty()) { 375a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) nacl_debug_mask = "!*://*/*ssh_client.nmf,chrome://pnacl-translator/*"; 376a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 377a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) NaClBrowser::GetDelegate()->SetDebugPatterns(nacl_debug_mask); 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 380effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch// static 381effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochvoid NaClProcessHost::SetPpapiKeepAliveThrottleForTesting( 382effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch unsigned milliseconds) { 383effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch keepalive_throttle_interval_milliseconds_ = milliseconds; 384effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch} 385effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::Launch( 3877d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) NaClHostMessageFilter* nacl_host_message_filter, 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply_msg, 389eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch const base::FilePath& manifest_path) { 3907d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) nacl_host_message_filter_ = nacl_host_message_filter; 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reply_msg_ = reply_msg; 392eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch manifest_path_ = manifest_path; 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3943551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // Do not launch the requested NaCl module if NaCl is marked "unstable" due 3953551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // to too many crashes within a given time period. 3963551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (enable_crash_throttling_ && 3973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) !CommandLine::ForCurrentProcess()->HasSwitch( 3983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) switches::kDisablePnaclCrashThrottling) && 399f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->IsThrottled()) { 4003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SendErrorToRenderer("Process creation was throttled due to excessive" 4013551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) " crashes"); 4023551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) delete this; 4033551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return; 4043551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 4053551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 406a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) const CommandLine* cmd = CommandLine::ForCurrentProcess(); 407a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)#if defined(OS_WIN) 408a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) if (cmd->HasSwitch(switches::kEnableNaClDebug) && 409a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) !cmd->HasSwitch(switches::kNoSandbox)) { 410a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) // We don't switch off sandbox automatically for security reasons. 411a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) SendErrorToRenderer("NaCl's GDB debug stub requires --no-sandbox flag" 412a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) " on Windows. See crbug.com/265624."); 413a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) delete this; 414a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) return; 415a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) } 416a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)#endif 417a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) if (cmd->HasSwitch(switches::kNaClGdb) && 418a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) !cmd->HasSwitch(switches::kEnableNaClDebug)) { 419a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) LOG(WARNING) << "--nacl-gdb flag requires --enable-nacl-debug flag"; 420a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) } 421a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Start getting the IRT open asynchronously while we launch the NaCl process. 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We'll make sure this actually finished in StartWithLaunchedProcess, below. 424f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl_browser->EnsureAllResourcesAvailable(); 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!nacl_browser->IsOk()) { 427ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("could not find all the resources needed" 428ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch " to launch the process"); 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 433e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch if (uses_nonsfi_mode_) { 434cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool nonsfi_mode_forced_by_command_line = false; 435cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool nonsfi_mode_allowed = false; 436e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch#if defined(OS_LINUX) 437cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nonsfi_mode_forced_by_command_line = 438cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cmd->HasSwitch(switches::kEnableNaClNonSfiMode); 439cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL) 440cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nonsfi_mode_allowed = NaClBrowser::GetDelegate()->IsNonSfiModeAllowed( 441cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nacl_host_message_filter->profile_directory(), manifest_url_); 442cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#endif 443e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch#endif 444cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool nonsfi_mode_enabled = 445cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nonsfi_mode_forced_by_command_line || nonsfi_mode_allowed; 446cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 447cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (!nonsfi_mode_enabled) { 448cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SendErrorToRenderer( 449cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) "NaCl non-SFI mode is not available for this platform" 450cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) " and NaCl module."); 451e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch delete this; 452e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch return; 453e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch } 454116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } else { 455116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Rather than creating a socket pair in the renderer, and passing 456116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // one side through the browser to sel_ldr, socket pairs are created 457116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // in the browser and then passed to the renderer and sel_ldr. 458116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // 459116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // This is mainly for the benefit of Windows, where sockets cannot 460116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // be passed in messages, but are copied via DuplicateHandle(). 461116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // This means the sandboxed renderer cannot send handles to the 462116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // browser process. 463e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch 464116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch NaClHandle pair[2]; 465116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Create a connected socket 466116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (NaClSocketPair(pair) == -1) { 467116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch SendErrorToRenderer("NaClSocketPair() failed"); 468116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch delete this; 469116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return; 470116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 471116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch internal_->socket_for_renderer = pair[0]; 472116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch internal_->socket_for_sel_ldr = pair[1]; 473116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch SetCloseOnExec(pair[0]); 474116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch SetCloseOnExec(pair[1]); 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 47703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // Create a shared memory region that the renderer and plugin share for 47803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // reporting crash information. 47903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) crash_info_shmem_.CreateAnonymous(kNaClCrashInfoShmemSize); 48003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Launch the process 4825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!LaunchSelLdr()) { 4835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnChannelConnected(int32 peer_pid) { 4885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!CommandLine::ForCurrentProcess()->GetSwitchValuePath( 4895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kNaClGdb).empty()) { 4907d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) LaunchNaClGdb(); 4915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnProcessLaunchedByBroker(base::ProcessHandle handle) { 4965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_launched_by_broker_ = true; 4975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->SetHandle(handle); 498cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SetDebugStubPort(nacl::kGdbDebugStubPortUnknown); 4995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!StartWithLaunchedProcess()) 5005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 5015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnDebugExceptionHandlerLaunchedByBroker(bool success) { 5045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply = attach_debug_exception_handler_reply_msg_.release(); 5055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClProcessMsg_AttachDebugExceptionHandler::WriteReplyParams(reply, success); 5065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Send(reply); 5075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 510010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)// Needed to handle sync messages in OnMessageReceived. 5115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::Send(IPC::Message* msg) { 5125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return process_->Send(msg); 5135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5157d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)bool NaClProcessHost::LaunchNaClGdb() { 5165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 5177d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) base::FilePath nacl_gdb = 5187d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) CommandLine::ForCurrentProcess()->GetSwitchValuePath(switches::kNaClGdb); 5197d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) CommandLine cmd_line(nacl_gdb); 5207d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#else 5215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine::StringType nacl_gdb = 5225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine::ForCurrentProcess()->GetSwitchValueNative( 5235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kNaClGdb); 5245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine::StringVector argv; 5255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We don't support spaces inside arguments in --nacl-gdb switch. 5265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SplitString(nacl_gdb, static_cast<CommandLine::CharType>(' '), &argv); 5275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine cmd_line(argv); 5287d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#endif 5295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--eval-command"); 5307d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) base::FilePath::StringType irt_path( 531f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->GetIrtFilePath().value()); 5327d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // Avoid back slashes because nacl-gdb uses posix escaping rules on Windows. 5337d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // See issue https://code.google.com/p/nativeclient/issues/detail?id=3482. 5347d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) std::replace(irt_path.begin(), irt_path.end(), '\\', '/'); 5357d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) cmd_line.AppendArgNative(FILE_PATH_LITERAL("nacl-irt \"") + irt_path + 5367d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) FILE_PATH_LITERAL("\"")); 537eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch if (!manifest_path_.empty()) { 5385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--eval-command"); 539eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch base::FilePath::StringType manifest_path_value(manifest_path_.value()); 5407d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) std::replace(manifest_path_value.begin(), manifest_path_value.end(), 5417d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) '\\', '/'); 5427d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) cmd_line.AppendArgNative(FILE_PATH_LITERAL("nacl-manifest \"") + 5437d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) manifest_path_value + FILE_PATH_LITERAL("\"")); 5445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--eval-command"); 5467d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) cmd_line.AppendArg("target remote :4014"); 5472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::FilePath script = CommandLine::ForCurrentProcess()->GetSwitchValuePath( 5485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kNaClGdbScript); 5495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!script.empty()) { 5505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--command"); 5515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArgNative(script.value()); 5525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::LaunchProcess(cmd_line, base::LaunchOptions(), NULL); 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::LaunchSelLdr() { 5575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string channel_id = process_->GetHost()->CreateChannel(); 5582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (channel_id.empty()) { 559ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("CreateChannel() failed"); 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 5612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Build command line for nacl. 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The Native Client process needs to be able to allocate a 1GB contiguous 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // region to use as the client environment's virtual address space. ASLR 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // (PIE) interferes with this by making it possible that no gap large enough 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to accomodate this request will exist in the child process' address 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // space. Disable PIE for NaCl processes. See http://crbug.com/90221 and 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // http://code.google.com/p/nativeclient/issues/detail?id=2043. 5725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = ChildProcessHost::CHILD_NO_PIE; 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(OS_LINUX) 574a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) int flags = ChildProcessHost::CHILD_ALLOW_SELF; 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = ChildProcessHost::CHILD_NORMAL; 5775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::FilePath exe_path = ChildProcessHost::GetChildPath(flags); 5805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (exe_path.empty()) 5815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 5825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 5845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // On Windows 64-bit NaCl loader is called nacl64.exe instead of chrome.exe 5855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (RunningOnWOW64()) { 586f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (!NaClBrowser::GetInstance()->GetNaCl64ExePath(&exe_path)) { 587ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("could not get path to nacl64.exe"); 5885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 5892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 590a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 591a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#ifdef _DLL 592a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // When using the DLL CRT on Windows, we need to amend the PATH to include 593a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // the location of the x64 CRT DLLs. This is only the case when using a 594a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // component=shared_library build (i.e. generally dev debug builds). The 595a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // x86 CRT DLLs are in e.g. out\Debug for chrome.exe etc., so the x64 ones 596a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // are put in out\Debug\x64 which we add to the PATH here so that loader 597a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // can find them. See http://crbug.com/346034. 598a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) scoped_ptr<base::Environment> env(base::Environment::Create()); 599a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) static const char kPath[] = "PATH"; 600a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string old_path; 601a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::FilePath module_path; 602a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!PathService::Get(base::FILE_MODULE, &module_path)) { 603a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) SendErrorToRenderer("could not get path to current module"); 604a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return false; 605a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 606a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string x64_crt_path = 607a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::WideToUTF8(module_path.DirName().Append(L"x64").value()); 608a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!env->GetVar(kPath, &old_path)) { 609a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) env->SetVar(kPath, x64_crt_path); 610a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } else if (!IsInPath(old_path, x64_crt_path)) { 611a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string new_path(old_path); 612a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) new_path.append(";"); 613a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) new_path.append(x64_crt_path); 614a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) env->SetVar(kPath, new_path); 615a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 616a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif // _DLL 6175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 6195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<CommandLine> cmd_line(new CommandLine(exe_path)); 621f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) CopyNaClCommandLineArguments(cmd_line.get()); 6225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line->AppendSwitchASCII(switches::kProcessType, 624e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch (uses_nonsfi_mode_ ? 625e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch switches::kNaClLoaderNonSfiProcess : 626e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch switches::kNaClLoaderProcess)); 6275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line->AppendSwitchASCII(switches::kProcessChannelID, channel_id); 628f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (NaClBrowser::GetDelegate()->DialogsAreSuppressed()) 6295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line->AppendSwitch(switches::kNoErrorDialogs); 6305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // On Windows we might need to start the broker process to launch a new loader 6325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (RunningOnWOW64()) { 6342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!NaClBrokerService::GetInstance()->LaunchLoader( 6352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) weak_factory_.GetWeakPtr(), channel_id)) { 636ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("broker service did not launch process"); 6372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 6382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 639a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 6405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 642a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) process_->Launch( 643a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) new NaClSandboxedProcessLauncherDelegate(process_->GetHost()), 644a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) cmd_line.release()); 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::OnMessageReceived(const IPC::Message& msg) { 6495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool handled = true; 650010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) if (uses_nonsfi_mode_) { 651010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // IPC messages relating to NaCl's validation cache must not be exposed 652010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // in Non-SFI Mode, otherwise a Non-SFI nexe could use 653010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // SetKnownToValidate to create a hole in the SFI sandbox. 654010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_BEGIN_MESSAGE_MAP(NaClProcessHost, msg) 655010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessHostMsg_PpapiChannelsCreated, 656010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnPpapiChannelsCreated) 657010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_UNHANDLED(handled = false) 658010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_END_MESSAGE_MAP() 659010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } else { 660010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_BEGIN_MESSAGE_MAP(NaClProcessHost, msg) 661010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessMsg_QueryKnownToValidate, 662010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnQueryKnownToValidate) 663010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessMsg_SetKnownToValidate, 664010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnSetKnownToValidate) 665010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER_DELAY_REPLY(NaClProcessMsg_ResolveFileToken, 666010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnResolveFileToken) 6675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 668010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER_DELAY_REPLY( 669010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) NaClProcessMsg_AttachDebugExceptionHandler, 670010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnAttachDebugExceptionHandler) 671cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessHostMsg_DebugStubPortSelected, 672cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) OnDebugStubPortSelected) 6735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 674010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessHostMsg_PpapiChannelsCreated, 675010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnPpapiChannelsCreated) 676010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_UNHANDLED(handled = false) 677010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_END_MESSAGE_MAP() 678010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return handled; 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnProcessLaunched() { 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!StartWithLaunchedProcess()) 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Called when the NaClBrowser singleton has been fully initialized. 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnResourcesReady() { 689f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 6902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!nacl_browser->IsReady()) { 691ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("could not acquire shared resources needed by NaCl"); 6922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) delete this; 693a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } else if (!StartNaClExecution()) { 6945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 6955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::ReplyToRenderer( 699a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const IPC::ChannelHandle& ppapi_channel_handle, 7000529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& trusted_channel_handle, 7010529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& manifest_service_channel_handle) { 7027dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#if defined(OS_WIN) 7037dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // If we are on 64-bit Windows, the NaCl process's sandbox is 7047dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // managed by a different process from the renderer's sandbox. We 7057dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // need to inform the renderer's sandbox about the NaCl process so 7067dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // that the renderer can send handles to the NaCl process using 7077dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // BrokerDuplicateHandle(). 7087dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch if (RunningOnWOW64()) { 7097dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch if (!content::BrokerAddTargetPeer(process_->GetData().handle)) { 710ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("BrokerAddTargetPeer() failed"); 7117dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch return false; 7127dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch } 7137dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch } 7147dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#endif 7157dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 716a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) FileDescriptor imc_handle_for_renderer; 7175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 7182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Copy the handle into the renderer process. 7192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) HANDLE handle_in_renderer; 7202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!DuplicateHandle(base::GetCurrentProcessHandle(), 7212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<HANDLE>( 7222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_renderer), 7237dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch nacl_host_message_filter_->PeerHandle(), 7242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) &handle_in_renderer, 7252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 0, // Unused given DUPLICATE_SAME_ACCESS. 7262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) FALSE, 7272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) { 728ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("DuplicateHandle() failed"); 7292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 7302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 731a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) imc_handle_for_renderer = reinterpret_cast<FileDescriptor>( 7322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) handle_in_renderer); 7335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 7342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // No need to dup the imc_handle - we don't pass it anywhere else so 7352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // it cannot be closed. 736f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) FileDescriptor imc_handle; 7372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) imc_handle.fd = internal_->socket_for_renderer; 7382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) imc_handle.auto_close = true; 739a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) imc_handle_for_renderer = imc_handle; 7405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 7415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const ChildProcessData& data = process_->GetData(); 74303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) base::SharedMemoryHandle crash_info_shmem_renderer_handle; 74403b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) if (!crash_info_shmem_.ShareToProcess(nacl_host_message_filter_->PeerHandle(), 74503b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) &crash_info_shmem_renderer_handle)) { 74603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) SendErrorToRenderer("ShareToProcess() failed"); 74703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) return false; 74803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 74903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 750ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendMessageToRenderer( 751a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) NaClLaunchResult(imc_handle_for_renderer, 752a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ppapi_channel_handle, 753a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) trusted_channel_handle, 7540529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch manifest_service_channel_handle, 755a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::GetProcId(data.handle), 75603b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) data.id, 75703b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) crash_info_shmem_renderer_handle), 758ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch std::string() /* error_message */); 7592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_renderer = NACL_INVALID_HANDLE; 76003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) 76103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // Now that the crash information shmem handles have been shared with the 76203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) // plugin and the renderer, the browser can close its handle. 76303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) crash_info_shmem_.Close(); 7645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 7655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 7665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 767ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdochvoid NaClProcessHost::SendErrorToRenderer(const std::string& error_message) { 768ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch LOG(ERROR) << "NaCl process launch failed: " << error_message; 769f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) SendMessageToRenderer(NaClLaunchResult(), error_message); 770ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch} 771ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 772ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdochvoid NaClProcessHost::SendMessageToRenderer( 773f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const NaClLaunchResult& result, 774ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch const std::string& error_message) { 775ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch DCHECK(nacl_host_message_filter_); 776ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch DCHECK(reply_msg_); 777ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch if (nacl_host_message_filter_ != NULL && reply_msg_ != NULL) { 778ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch NaClHostMsg_LaunchNaCl::WriteReplyParams( 779ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch reply_msg_, result, error_message); 780ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch nacl_host_message_filter_->Send(reply_msg_); 781ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch nacl_host_message_filter_ = NULL; 782ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch reply_msg_ = NULL; 783ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch } 784ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch} 785ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 786cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)void NaClProcessHost::SetDebugStubPort(int port) { 787cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 788cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nacl_browser->SetProcessGdbDebugStubPort(process_->GetData().id, port); 789cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 790cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 791cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#if defined(OS_POSIX) 7925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TCP port we chose for NaCl debug stub. It can be any other number. 7935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)static const int kInitialDebugStubPort = 4014; 7945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)net::SocketDescriptor NaClProcessHost::GetDebugStubSocketHandle() { 796424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) net::SocketDescriptor s = net::kInvalidSocket; 7975d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // We always try to allocate the default port first. If this fails, we then 7985d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // allocate any available port. 7995d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // On success, if the test system has register a handler 8005d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // (GdbDebugStubPortListener), we fire a notification. 8015d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int port = kInitialDebugStubPort; 8025d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) s = net::TCPListenSocket::CreateAndBind("127.0.0.1", port); 8035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (s == net::kInvalidSocket) { 8042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) s = net::TCPListenSocket::CreateAndBindAnyPort("127.0.0.1", &port); 8055d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 8065d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (s != net::kInvalidSocket) { 807cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SetDebugStubPort(port); 8082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 809424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (s == net::kInvalidSocket) { 8102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "failed to open socket for debug stub"; 811424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) return net::kInvalidSocket; 8125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } else { 8135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) LOG(WARNING) << "debug stub on port " << port; 8142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 8155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (listen(s, 1)) { 8165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "listen() failed on debug stub socket"; 817a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (IGNORE_EINTR(close(s)) < 0) 8182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PLOG(ERROR) << "failed to close debug stub socket"; 819424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) return net::kInvalidSocket; 8205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return s; 8225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#if defined(OS_WIN) 826cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)void NaClProcessHost::OnDebugStubPortSelected(uint16_t debug_stub_port) { 827cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) CHECK(!uses_nonsfi_mode_); 828cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SetDebugStubPort(debug_stub_port); 829cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 830cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#endif 831cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 8325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::StartNaClExecution() { 833f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 8345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 835f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClStartParams params; 836116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 8372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Enable PPAPI proxy channel creation only for renderer processes. 8382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) params.enable_ipc_proxy = enable_ppapi_proxy(); 839116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (uses_nonsfi_mode_) { 840116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Currently, non-SFI mode is supported only on Linux. 841116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#if defined(OS_LINUX) 842116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // In non-SFI mode, we do not use SRPC. Make sure that the socketpair is 843116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // not created. 844116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK_EQ(internal_->socket_for_sel_ldr, NACL_INVALID_HANDLE); 845116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#endif 846116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } else { 847010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.validation_cache_enabled = nacl_browser->ValidationCacheIsEnabled(); 848010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.validation_cache_key = nacl_browser->GetValidationCacheKey(); 849010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.version = NaClBrowser::GetDelegate()->GetVersionString(); 850010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.enable_exception_handling = enable_exception_handling_; 851010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.enable_debug_stub = enable_debug_stub_ && 852010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) NaClBrowser::GetDelegate()->URLMatchesDebugPatterns(manifest_url_); 853010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.uses_irt = uses_irt_; 854010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.enable_dyncode_syscalls = enable_dyncode_syscalls_; 8555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8565f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // TODO(teravest): Resolve the file tokens right now instead of making the 8575f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // loader send IPC to resolve them later. 8585f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) params.nexe_token_lo = nexe_token_.lo; 8595f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) params.nexe_token_hi = nexe_token_.hi; 8605f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 861116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const ChildProcessData& data = process_->GetData(); 862116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (!ShareHandleToSelLdr(data.handle, 863116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch internal_->socket_for_sel_ldr, true, 864010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) ¶ms.handles)) { 8652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 866010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } 867116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 868116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (params.uses_irt) { 869116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const base::File& irt_file = nacl_browser->IrtFile(); 870116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch CHECK(irt_file.IsValid()); 871116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Send over the IRT file handle. We don't close our own copy! 872116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (!ShareHandleToSelLdr(data.handle, irt_file.GetPlatformFile(), false, 873116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch ¶ms.handles)) { 874116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return false; 875116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 876116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 8775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 879116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // For dynamic loading support, NaCl requires a file descriptor that 880116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // was created in /tmp, since those created with shm_open() are not 881116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // mappable with PROT_EXEC. Rather than requiring an extra IPC 882116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // round trip out of the sandbox, we create an FD here. 883116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::SharedMemory memory_buffer; 884116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::SharedMemoryCreateOptions options; 885116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch options.size = 1; 886116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch options.executable = true; 887116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (!memory_buffer.Create(options)) { 888116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DLOG(ERROR) << "Failed to allocate memory buffer"; 889116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return false; 890116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 891116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch FileDescriptor memory_fd; 892116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch memory_fd.fd = dup(memory_buffer.handle().fd); 893116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (memory_fd.fd < 0) { 894116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DLOG(ERROR) << "Failed to dup() a file descriptor"; 895116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return false; 896116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 897116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch memory_fd.auto_close = true; 898116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch params.handles.push_back(memory_fd); 8995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 9005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_POSIX) 902116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (params.enable_debug_stub) { 903116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch net::SocketDescriptor server_bound_socket = GetDebugStubSocketHandle(); 904116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (server_bound_socket != net::kInvalidSocket) { 905116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch params.debug_stub_server_bound_socket = 906116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch FileDescriptor(server_bound_socket, true); 907116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 9085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 910116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 9115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9125f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) if (!uses_nonsfi_mode_) { 913116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch internal_->socket_for_sel_ldr = NACL_INVALID_HANDLE; 914116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 9155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9165f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) params.nexe_file = IPC::TakeFileHandleForProcess(nexe_file_.Pass(), 9175f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) process_->GetData().handle); 91803b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) if (!crash_info_shmem_.ShareToProcess(process_->GetData().handle, 91903b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) ¶ms.crash_info_shmem_handle)) { 92003b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) DLOG(ERROR) << "Failed to ShareToProcess() a shared memory buffer"; 92103b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) return false; 92203b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles) } 9235f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 924116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch process_->Send(new NaClProcessMsg_Start(params)); 9255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 9265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 9275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This method is called when NaClProcessHostMsg_PpapiChannelCreated is 9295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// received. 9305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void NaClProcessHost::OnPpapiChannelsCreated( 9315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const IPC::ChannelHandle& browser_channel_handle, 932a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const IPC::ChannelHandle& ppapi_renderer_channel_handle, 9330529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& trusted_renderer_channel_handle, 9340529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& manifest_service_channel_handle) { 935a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!enable_ppapi_proxy()) { 9360529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch ReplyToRenderer(IPC::ChannelHandle(), 9370529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch trusted_renderer_channel_handle, 9380529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch manifest_service_channel_handle); 939a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return; 940a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 941a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 9425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!ipc_proxy_channel_.get()) { 9432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK_EQ(PROCESS_TYPE_NACL_LOADER, process_->GetData().process_type); 9442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 94546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) ipc_proxy_channel_ = 94646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) IPC::ChannelProxy::Create(browser_channel_handle, 94746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) IPC::Channel::MODE_CLIENT, 94846d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) NULL, 94946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) base::MessageLoopProxy::current().get()); 9505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Create the browser ppapi host and enable PPAPI message dispatching to the 9515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // browser process. 9522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ppapi_host_.reset(content::BrowserPpapiHost::CreateExternalPluginProcess( 9532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ipc_proxy_channel_.get(), // sender 9545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) permissions_, 9555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->GetData().handle, 9565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ipc_proxy_channel_.get(), 9577d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) nacl_host_message_filter_->render_process_id(), 958c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) render_view_id_, 959c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) profile_directory_)); 9605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ppapi_host_->SetOnKeepaliveCallback( 9615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NaClBrowser::GetDelegate()->GetOnKeepaliveCallback()); 962c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 9635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ppapi::PpapiNaClPluginArgs args; 9647d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) args.off_the_record = nacl_host_message_filter_->off_the_record(); 965c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) args.permissions = permissions_; 966effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch args.keepalive_throttle_interval_milliseconds = 967effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch keepalive_throttle_interval_milliseconds_; 968c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) CommandLine* cmdline = CommandLine::ForCurrentProcess(); 969c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(cmdline); 9705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string flag_whitelist[] = { 9715d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) switches::kV, 9725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) switches::kVModule, 9735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) }; 974c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) for (size_t i = 0; i < arraysize(flag_whitelist); ++i) { 975c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::string value = cmdline->GetSwitchValueASCII(flag_whitelist[i]); 976c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!value.empty()) { 977c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) args.switch_names.push_back(flag_whitelist[i]); 978c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) args.switch_values.push_back(value); 979c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 980c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 981c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 982c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ppapi_host_->GetPpapiHost()->AddHostFactoryFilter( 983c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) scoped_ptr<ppapi::host::HostFactory>( 984f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetDelegate()->CreatePpapiHostFactory( 9857dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch ppapi_host_.get()))); 9862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Send a message to initialize the IPC dispatchers in the NaCl plugin. 9885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ipc_proxy_channel_->Send(new PpapiMsg_InitializeNaClDispatcher(args)); 9895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 9905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Let the renderer know that the IPC channels are established. 991a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ReplyToRenderer(ppapi_renderer_channel_handle, 9920529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch trusted_renderer_channel_handle, 9930529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch manifest_service_channel_handle); 9945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 9955d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Attempt to open more than 1 browser channel is not supported. 9965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Shut down the NaCl process. 9975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->GetHost()->ForceShutdown(); 9985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::StartWithLaunchedProcess() { 1002f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 10035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (nacl_browser->IsReady()) { 1005a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return StartNaClExecution(); 10065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else if (nacl_browser->IsOk()) { 10075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl_browser->WaitForResources( 10085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&NaClProcessHost::OnResourcesReady, 10095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) weak_factory_.GetWeakPtr())); 10105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 10115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 1012ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("previously failed to acquire shared resources"); 10135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 10145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 10155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnQueryKnownToValidate(const std::string& signature, 10185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool* result) { 1019010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 1020f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 10215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *result = nacl_browser->QueryKnownToValidate(signature, off_the_record_); 10225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnSetKnownToValidate(const std::string& signature) { 1025010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 1026f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->SetKnownToValidate( 10270f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) signature, off_the_record_); 10285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 103090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)void NaClProcessHost::FileResolved( 103190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const base::FilePath& file_path, 1032f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) IPC::Message* reply_msg, 1033a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::File file) { 1034a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (file.IsValid()) { 1035a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) IPC::PlatformFileForTransit handle = IPC::TakeFileHandleForProcess( 1036a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) file.Pass(), 1037a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) process_->GetData().handle); 103890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 103990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 104090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) handle, 104190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) file_path); 104290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } else { 104390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 104490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 104590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::InvalidPlatformFileForTransit(), 1046f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::FilePath()); 104790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 104890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) Send(reply_msg); 104990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 105090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 105190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)void NaClProcessHost::OnResolveFileToken(uint64 file_token_lo, 105290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) uint64 file_token_hi, 105390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::Message* reply_msg) { 105490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Was the file registered? 105590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 105690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the file path cache is of bounded size, and old entries can get 105790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // evicted. If a large number of NaCl modules are being launched at once, 105890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // resolving the file_token may fail because the path cache was thrashed 105990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // while the file_token was in flight. In this case the query fails, and we 106090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // need to fall back to the slower path. 106190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 106290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // However: each NaCl process will consume 2-3 entries as it starts up, this 106390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // means that eviction will not happen unless you start up 33+ NaCl processes 106490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // at the same time, and this still requires worst-case timing. As a 106590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // practical matter, no entries should be evicted prematurely. 106690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // The cache itself should take ~ (150 characters * 2 bytes/char + ~60 bytes 106790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // data structure overhead) * 100 = 35k when full, so making it bigger should 106890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // not be a problem, if needed. 106990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 107090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Each NaCl process will consume 2-3 entries because the manifest and main 107190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // nexe are currently not resolved. Shared libraries will be resolved. They 107290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // will be loaded sequentially, so they will only consume a single entry 107390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // while the load is in flight. 107490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 107590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // TODO(ncbray): track behavior with UMA. If entries are getting evicted or 107690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // bogus keys are getting queried, this would be good to know. 1077010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 107890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) base::FilePath file_path; 1079f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (!NaClBrowser::GetInstance()->GetFilePath( 10800f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) file_token_lo, file_token_hi, &file_path)) { 108190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 108290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 108390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::InvalidPlatformFileForTransit(), 1084f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::FilePath()); 108590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) Send(reply_msg); 108690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return; 108790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 108890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 108990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Open the file. 1090f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (!base::PostTaskAndReplyWithResult( 1091f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) content::BrowserThread::GetBlockingPool(), 109290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) FROM_HERE, 1093116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::Bind(OpenNaClReadExecImpl, file_path, true /* is_executable */), 109490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) base::Bind(&NaClProcessHost::FileResolved, 109590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) weak_factory_.GetWeakPtr(), 109690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) file_path, 109790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg))) { 109890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 109990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 110090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::InvalidPlatformFileForTransit(), 1101f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::FilePath()); 110290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) Send(reply_msg); 110390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 110490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 110590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 11065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 11075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnAttachDebugExceptionHandler(const std::string& info, 11085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply_msg) { 1109010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 11105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!AttachDebugExceptionHandler(info, reply_msg)) { 11115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Send failure message. 11125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClProcessMsg_AttachDebugExceptionHandler::WriteReplyParams(reply_msg, 11135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) false); 11145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Send(reply_msg); 11155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 11165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::AttachDebugExceptionHandler(const std::string& info, 11195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply_msg) { 11205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!enable_exception_handling_ && !enable_debug_stub_) { 11215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG(ERROR) << 11225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Debug exception handler requested by NaCl process when not enabled"; 11235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 11245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 11255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (debug_exception_handler_requested_) { 11265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The NaCl process should not request this multiple times. 11275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG(ERROR) << "Multiple AttachDebugExceptionHandler requests received"; 11285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 11295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 11305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) debug_exception_handler_requested_ = true; 11315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ProcessId nacl_pid = base::GetProcId(process_->GetData().handle); 1133f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::ProcessHandle temp_handle; 11345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We cannot use process_->GetData().handle because it does not have 11355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the necessary access rights. We open the new handle here rather 11365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // than in the NaCl broker process in case the NaCl loader process 11375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // dies before the NaCl broker process receives the message we send. 11385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The debug exception handler uses DebugActiveProcess() to attach, 11395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // but this takes a PID. We need to prevent the NaCl loader's PID 11405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // from being reused before DebugActiveProcess() is called, and 11415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // holding a process handle open achieves this. 11425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::OpenProcessHandleWithAccess( 11435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl_pid, 11445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessQueryInformation | 11455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessSuspendResume | 11465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessTerminate | 11475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessVMOperation | 11485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessVMRead | 11495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessVMWrite | 11502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::kProcessAccessDuplicateHandle | 11515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessWaitForTermination, 1152f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) &temp_handle)) { 11535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "Failed to get process handle"; 11545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 11555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1156f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::win::ScopedHandle process_handle(temp_handle); 11575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) attach_debug_exception_handler_reply_msg_.reset(reply_msg); 11595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If the NaCl loader is 64-bit, the process running its debug 11605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // exception handler must be 64-bit too, so we use the 64-bit NaCl 11615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // broker process for this. Otherwise, on a 32-bit system, we use 11625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the 32-bit browser process to run the debug exception handler. 11635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (RunningOnWOW64()) { 11645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NaClBrokerService::GetInstance()->LaunchDebugExceptionHandler( 11655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) weak_factory_.GetWeakPtr(), nacl_pid, process_handle, info); 11665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 11675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClStartDebugExceptionHandlerThread( 11685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_handle.Take(), info, 11695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::MessageLoopProxy::current(), 11705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&NaClProcessHost::OnDebugExceptionHandlerLaunchedByBroker, 11715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) weak_factory_.GetWeakPtr())); 11725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 11735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 11745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1176f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 1177f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} // namespace nacl 1178