nacl_process_host.cc revision 116680a4aac90f2aa7413d9095a592090648e557
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" 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "native_client/src/shared/imc/nacl_imc_c.h" 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_util.h" 51c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "net/socket/tcp_listen_socket.h" 527dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#include "ppapi/host/host_factory.h" 53c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "ppapi/host/ppapi_host.h" 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/proxy/ppapi_messages.h" 55effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "ppapi/shared_impl/ppapi_constants.h" 565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "ppapi/shared_impl/ppapi_nacl_plugin_args.h" 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_POSIX) 59effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <fcntl.h> 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ipc/ipc_channel_posix.h" 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(OS_WIN) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/threading/thread.h" 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/win/scoped_handle.h" 68f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "components/nacl/browser/nacl_broker_service_win.h" 69a3f7b4e666c476898878fa745f637129375cd889Ben Murdoch#include "components/nacl/common/nacl_debug_exception_handler_win.h" 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/common/sandbox_init.h" 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::BrowserThread; 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::ChildProcessData; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::ChildProcessHost; 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using ppapi::proxy::SerializedHandle; 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 783551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#if defined(OS_WIN) 793551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 803551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)namespace { 813551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 823551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// Looks for the largest contiguous unallocated region of address 833551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// space and returns it via |*out_addr| and |*out_size|. 843551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void FindAddressSpace(base::ProcessHandle process, 853551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) char** out_addr, size_t* out_size) { 863551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_addr = NULL; 873551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_size = 0; 883551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) char* addr = 0; 893551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) while (true) { 903551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) MEMORY_BASIC_INFORMATION info; 913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) size_t result = VirtualQueryEx(process, static_cast<void*>(addr), 923551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) &info, sizeof(info)); 933551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (result < sizeof(info)) 943551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) break; 953551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (info.State == MEM_FREE && info.RegionSize > *out_size) { 963551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_addr = addr; 973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_size = info.RegionSize; 983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 993551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) addr += info.RegionSize; 1003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 1013551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 1023551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 103a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#ifdef _DLL 104a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 105a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)bool IsInPath(const std::string& path_env_var, const std::string& dir) { 106a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::vector<std::string> split; 107a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::SplitString(path_env_var, ';', &split); 108a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) for (std::vector<std::string>::const_iterator i(split.begin()); 109a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) i != split.end(); 110a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ++i) { 111a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (*i == dir) 112a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 113a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 114a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return false; 115a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 116a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 117a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif // _DLL 118a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1193551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} // namespace 1203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1213551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)namespace nacl { 1223551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1233551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// Allocates |size| bytes of address space in the given process at a 1243551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// randomised address. 1253551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void* AllocateAddressSpaceASLR(base::ProcessHandle process, size_t size) { 1263551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) char* addr; 1273551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) size_t avail_size; 1283551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) FindAddressSpace(process, &addr, &avail_size); 1293551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (avail_size < size) 1303551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return NULL; 1313551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) size_t offset = base::RandGenerator(avail_size - size); 1323551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const int kPageSize = 0x10000; 1333551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) void* request_addr = 1343551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) reinterpret_cast<void*>(reinterpret_cast<uint64>(addr + offset) 1353551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) & ~(kPageSize - 1)); 1363551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return VirtualAllocEx(process, request_addr, size, 1373551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) MEM_RESERVE, PAGE_NOACCESS); 1383551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 1393551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1403551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} // namespace nacl 1413551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1423551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#endif // defined(OS_WIN) 1433551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool RunningOnWOW64() { 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (base::win::OSInfo::GetInstance()->wow64_status() == 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::win::OSInfo::WOW64_ENABLED); 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 151a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// NOTE: changes to this class need to be reviewed by the security team. 1542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class NaClSandboxedProcessLauncherDelegate 1552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : public content::SandboxedProcessLauncherDelegate { 1562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 157a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) NaClSandboxedProcessLauncherDelegate(ChildProcessHost* host) 158a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_POSIX) 159a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) : ipc_fd_(host->TakeClientFileDescriptor()) 160a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif 161a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) {} 162a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual ~NaClSandboxedProcessLauncherDelegate() {} 1642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 165a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_WIN) 1662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void PostSpawnTarget(base::ProcessHandle process) { 1672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // For Native Client sel_ldr processes on 32-bit Windows, reserve 1 GB of 1682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // address space to prevent later failure due to address space fragmentation 1692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // from .dll loading. The NaCl process will attempt to locate this space by 1702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // scanning the address space using VirtualQuery. 1712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(bbudge) Handle the --no-sandbox case. 1722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // http://code.google.com/p/nativeclient/issues/detail?id=2131 1733551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const SIZE_T kNaClSandboxSize = 1 << 30; 1743551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (!nacl::AllocateAddressSpaceASLR(process, kNaClSandboxSize)) { 1752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DLOG(WARNING) << "Failed to reserve address space for Native Client"; 1762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 178a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#elif defined(OS_POSIX) 179a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual bool ShouldUseZygote() OVERRIDE { 180a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 181a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 182a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual int GetIpcFd() OVERRIDE { 183a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return ipc_fd_; 184a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 1852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif // OS_WIN 1862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 187a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) private: 188a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_POSIX) 189a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) int ipc_fd_; 190a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif // OS_POSIX 191a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)}; 192a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void SetCloseOnExec(NaClHandle fd) { 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_POSIX) 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = fcntl(fd, F_GETFD); 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_NE(flags, -1); 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc = fcntl(fd, F_SETFD, flags | FD_CLOEXEC); 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_EQ(rc, 0); 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool ShareHandleToSelLdr( 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ProcessHandle processh, 2042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle sourceh, 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool close_source, 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::vector<nacl::FileDescriptor> *handles_for_sel_ldr) { 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HANDLE channel; 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = DUPLICATE_SAME_ACCESS; 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (close_source) 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) flags |= DUPLICATE_CLOSE_SOURCE; 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!DuplicateHandle(GetCurrentProcess(), 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<HANDLE>(sourceh), 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) processh, 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &channel, 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 0, // Unused given DUPLICATE_SAME_ACCESS. 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FALSE, 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) flags)) { 2192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "DuplicateHandle() failed"; 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) handles_for_sel_ldr->push_back( 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<nacl::FileDescriptor>(channel)); 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl::FileDescriptor channel; 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) channel.fd = sourceh; 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) channel.auto_close = close_source; 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) handles_for_sel_ldr->push_back(channel); 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 235f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)namespace nacl { 236f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NaClProcessHost::NaClInternal { 2382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle socket_for_renderer; 2392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle socket_for_sel_ldr; 2402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClInternal() 2422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : socket_for_renderer(NACL_INVALID_HANDLE), 2432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) socket_for_sel_ldr(NACL_INVALID_HANDLE) { } 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ----------------------------------------------------------------------------- 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 248effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochunsigned NaClProcessHost::keepalive_throttle_interval_milliseconds_ = 249effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch ppapi::kKeepaliveThrottleIntervalDefaultMilliseconds; 250effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NaClProcessHost::NaClProcessHost(const GURL& manifest_url, 252116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::File nexe_file, 2536d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) ppapi::PpapiPermissions permissions, 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int render_view_id, 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32 permission_bits, 2562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool uses_irt, 257a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) bool uses_nonsfi_mode, 258c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool enable_dyncode_syscalls, 2597d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) bool enable_exception_handling, 2603551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) bool enable_crash_throttling, 261c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool off_the_record, 262c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const base::FilePath& profile_directory) 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : manifest_url_(manifest_url), 264116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch nexe_file_(nexe_file.Pass()), 2656d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) permissions_(permissions), 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_launched_by_broker_(false), 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reply_msg_(NULL), 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) debug_exception_handler_requested_(false), 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) internal_(new NaClInternal()), 274c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) weak_factory_(this), 2752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) uses_irt_(uses_irt), 276a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) uses_nonsfi_mode_(uses_nonsfi_mode), 2777d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) enable_debug_stub_(false), 278c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) enable_dyncode_syscalls_(enable_dyncode_syscalls), 2797d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) enable_exception_handling_(enable_exception_handling), 2803551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) enable_crash_throttling_(enable_crash_throttling), 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) off_the_record_(off_the_record), 282c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) profile_directory_(profile_directory), 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) render_view_id_(render_view_id) { 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_.reset(content::BrowserChildProcessHost::Create( 2852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PROCESS_TYPE_NACL_LOADER, this)); 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Set the display name so the user knows what plugin the process is running. 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We aren't on the UI thread so getting the pref locale for language 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // formatting isn't possible, so IDN will be lost, but this is probably OK 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // for this use case. 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->SetName(net::FormatUrl(manifest_url_, std::string())); 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_debug_stub_ = CommandLine::ForCurrentProcess()->HasSwitch( 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kEnableNaClDebug); 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NaClProcessHost::~NaClProcessHost() { 298424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // Report exit status only if the process was successfully started. 299424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (process_->GetData().handle != base::kNullProcessHandle) { 300424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) int exit_code = 0; 301424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) process_->GetTerminationStatus(false /* known_dead */, &exit_code); 302424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) std::string message = 303424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) base::StringPrintf("NaCl process exited with status %i (0x%x)", 304424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) exit_code, exit_code); 305424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (exit_code == 0) { 306f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) VLOG(1) << message; 307424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) } else { 308424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) LOG(ERROR) << message; 309424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) } 310cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) NaClBrowser::GetInstance()->OnProcessEnd(process_->GetData().id); 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (internal_->socket_for_renderer != NACL_INVALID_HANDLE) { 3142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (NaClClose(internal_->socket_for_renderer) != 0) { 3152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NOTREACHED() << "NaClClose() failed"; 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (internal_->socket_for_sel_ldr != NACL_INVALID_HANDLE) { 3202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (NaClClose(internal_->socket_for_sel_ldr) != 0) { 3212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NOTREACHED() << "NaClClose() failed"; 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (reply_msg_) { 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The process failed to launch for some reason. 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Don't keep the renderer hanging. 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reply_msg_->set_reply_error(); 3297d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) nacl_host_message_filter_->Send(reply_msg_); 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (process_launched_by_broker_) { 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClBrokerService::GetInstance()->OnLoaderDied(); 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3383551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void NaClProcessHost::OnProcessCrashed(int exit_status) { 3393551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (enable_crash_throttling_ && 3403551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) !CommandLine::ForCurrentProcess()->HasSwitch( 3413551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) switches::kDisablePnaclCrashThrottling)) { 342f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->OnProcessCrashed(); 3433551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 3443551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 3453551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This is called at browser startup. 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 3488bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)void NaClProcessHost::EarlyStartup() { 349f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->EarlyStartup(); 350cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // Inform NaClBrowser that we exist and will have a debug port at some point. 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_LINUX) && !defined(OS_CHROMEOS) 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Open the IRT file early to make sure that it isn't replaced out from 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // under us by autoupdate. 354f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->EnsureIrtAvailable(); 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine* cmd = CommandLine::ForCurrentProcess(); 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN( 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NaCl.nacl-gdb", 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !cmd->GetSwitchValuePath(switches::kNaClGdb).empty()); 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN( 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NaCl.nacl-gdb-script", 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !cmd->GetSwitchValuePath(switches::kNaClGdbScript).empty()); 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN( 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NaCl.enable-nacl-debug", 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd->HasSwitch(switches::kEnableNaClDebug)); 366a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string nacl_debug_mask = 367a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) cmd->GetSwitchValueASCII(switches::kNaClDebugMask); 368a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // By default, exclude debugging SSH and the PNaCl translator. 369a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // about::flags only allows empty flags as the default, so replace 370a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // the empty setting with the default. To debug all apps, use a wild-card. 371a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (nacl_debug_mask.empty()) { 372a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) nacl_debug_mask = "!*://*/*ssh_client.nmf,chrome://pnacl-translator/*"; 373a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 374a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) NaClBrowser::GetDelegate()->SetDebugPatterns(nacl_debug_mask); 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 377effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch// static 378effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochvoid NaClProcessHost::SetPpapiKeepAliveThrottleForTesting( 379effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch unsigned milliseconds) { 380effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch keepalive_throttle_interval_milliseconds_ = milliseconds; 381effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch} 382effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::Launch( 3847d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) NaClHostMessageFilter* nacl_host_message_filter, 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply_msg, 386eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch const base::FilePath& manifest_path) { 3877d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) nacl_host_message_filter_ = nacl_host_message_filter; 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reply_msg_ = reply_msg; 389eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch manifest_path_ = manifest_path; 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // Do not launch the requested NaCl module if NaCl is marked "unstable" due 3923551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // to too many crashes within a given time period. 3933551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (enable_crash_throttling_ && 3943551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) !CommandLine::ForCurrentProcess()->HasSwitch( 3953551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) switches::kDisablePnaclCrashThrottling) && 396f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->IsThrottled()) { 3973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SendErrorToRenderer("Process creation was throttled due to excessive" 3983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) " crashes"); 3993551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) delete this; 4003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return; 4013551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 4023551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 403a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) const CommandLine* cmd = CommandLine::ForCurrentProcess(); 404a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)#if defined(OS_WIN) 405a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) if (cmd->HasSwitch(switches::kEnableNaClDebug) && 406a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) !cmd->HasSwitch(switches::kNoSandbox)) { 407a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) // We don't switch off sandbox automatically for security reasons. 408a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) SendErrorToRenderer("NaCl's GDB debug stub requires --no-sandbox flag" 409a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) " on Windows. See crbug.com/265624."); 410a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) delete this; 411a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) return; 412a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) } 413a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)#endif 414a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) if (cmd->HasSwitch(switches::kNaClGdb) && 415a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) !cmd->HasSwitch(switches::kEnableNaClDebug)) { 416a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) LOG(WARNING) << "--nacl-gdb flag requires --enable-nacl-debug flag"; 417a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) } 418a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Start getting the IRT open asynchronously while we launch the NaCl process. 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We'll make sure this actually finished in StartWithLaunchedProcess, below. 421f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl_browser->EnsureAllResourcesAvailable(); 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!nacl_browser->IsOk()) { 424ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("could not find all the resources needed" 425ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch " to launch the process"); 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 430e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch if (uses_nonsfi_mode_) { 431cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool nonsfi_mode_forced_by_command_line = false; 432cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool nonsfi_mode_allowed = false; 433e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch#if defined(OS_LINUX) 434cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nonsfi_mode_forced_by_command_line = 435cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cmd->HasSwitch(switches::kEnableNaClNonSfiMode); 436cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL) 437cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nonsfi_mode_allowed = NaClBrowser::GetDelegate()->IsNonSfiModeAllowed( 438cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nacl_host_message_filter->profile_directory(), manifest_url_); 439cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#endif 440e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch#endif 441cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool nonsfi_mode_enabled = 442cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nonsfi_mode_forced_by_command_line || nonsfi_mode_allowed; 443cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 444cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (!nonsfi_mode_enabled) { 445cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SendErrorToRenderer( 446cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) "NaCl non-SFI mode is not available for this platform" 447cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) " and NaCl module."); 448e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch delete this; 449e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch return; 450e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch } 451116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } else { 452116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Rather than creating a socket pair in the renderer, and passing 453116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // one side through the browser to sel_ldr, socket pairs are created 454116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // in the browser and then passed to the renderer and sel_ldr. 455116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // 456116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // This is mainly for the benefit of Windows, where sockets cannot 457116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // be passed in messages, but are copied via DuplicateHandle(). 458116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // This means the sandboxed renderer cannot send handles to the 459116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // browser process. 460e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch 461116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch NaClHandle pair[2]; 462116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Create a connected socket 463116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (NaClSocketPair(pair) == -1) { 464116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch SendErrorToRenderer("NaClSocketPair() failed"); 465116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch delete this; 466116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return; 467116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 468116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch internal_->socket_for_renderer = pair[0]; 469116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch internal_->socket_for_sel_ldr = pair[1]; 470116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch SetCloseOnExec(pair[0]); 471116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch SetCloseOnExec(pair[1]); 4725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Launch the process 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!LaunchSelLdr()) { 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 4775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnChannelConnected(int32 peer_pid) { 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!CommandLine::ForCurrentProcess()->GetSwitchValuePath( 4825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kNaClGdb).empty()) { 4837d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) LaunchNaClGdb(); 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 4885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnProcessLaunchedByBroker(base::ProcessHandle handle) { 4895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_launched_by_broker_ = true; 4905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->SetHandle(handle); 491cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SetDebugStubPort(nacl::kGdbDebugStubPortUnknown); 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!StartWithLaunchedProcess()) 4935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnDebugExceptionHandlerLaunchedByBroker(bool success) { 4975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply = attach_debug_exception_handler_reply_msg_.release(); 4985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClProcessMsg_AttachDebugExceptionHandler::WriteReplyParams(reply, success); 4995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Send(reply); 5005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 503010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)// Needed to handle sync messages in OnMessageReceived. 5045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::Send(IPC::Message* msg) { 5055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return process_->Send(msg); 5065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5087d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)bool NaClProcessHost::LaunchNaClGdb() { 5095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 5107d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) base::FilePath nacl_gdb = 5117d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) CommandLine::ForCurrentProcess()->GetSwitchValuePath(switches::kNaClGdb); 5127d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) CommandLine cmd_line(nacl_gdb); 5137d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#else 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine::StringType nacl_gdb = 5155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine::ForCurrentProcess()->GetSwitchValueNative( 5165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kNaClGdb); 5175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine::StringVector argv; 5185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We don't support spaces inside arguments in --nacl-gdb switch. 5195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SplitString(nacl_gdb, static_cast<CommandLine::CharType>(' '), &argv); 5205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine cmd_line(argv); 5217d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#endif 5225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--eval-command"); 5237d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) base::FilePath::StringType irt_path( 524f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->GetIrtFilePath().value()); 5257d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // Avoid back slashes because nacl-gdb uses posix escaping rules on Windows. 5267d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // See issue https://code.google.com/p/nativeclient/issues/detail?id=3482. 5277d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) std::replace(irt_path.begin(), irt_path.end(), '\\', '/'); 5287d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) cmd_line.AppendArgNative(FILE_PATH_LITERAL("nacl-irt \"") + irt_path + 5297d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) FILE_PATH_LITERAL("\"")); 530eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch if (!manifest_path_.empty()) { 5315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--eval-command"); 532eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch base::FilePath::StringType manifest_path_value(manifest_path_.value()); 5337d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) std::replace(manifest_path_value.begin(), manifest_path_value.end(), 5347d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) '\\', '/'); 5357d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) cmd_line.AppendArgNative(FILE_PATH_LITERAL("nacl-manifest \"") + 5367d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) manifest_path_value + FILE_PATH_LITERAL("\"")); 5375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--eval-command"); 5397d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) cmd_line.AppendArg("target remote :4014"); 5402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::FilePath script = CommandLine::ForCurrentProcess()->GetSwitchValuePath( 5415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kNaClGdbScript); 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!script.empty()) { 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--command"); 5445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArgNative(script.value()); 5455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::LaunchProcess(cmd_line, base::LaunchOptions(), NULL); 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::LaunchSelLdr() { 5505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string channel_id = process_->GetHost()->CreateChannel(); 5512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (channel_id.empty()) { 552ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("CreateChannel() failed"); 5535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 5542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Build command line for nacl. 5575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 5595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The Native Client process needs to be able to allocate a 1GB contiguous 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // region to use as the client environment's virtual address space. ASLR 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // (PIE) interferes with this by making it possible that no gap large enough 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to accomodate this request will exist in the child process' address 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // space. Disable PIE for NaCl processes. See http://crbug.com/90221 and 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // http://code.google.com/p/nativeclient/issues/detail?id=2043. 5655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = ChildProcessHost::CHILD_NO_PIE; 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(OS_LINUX) 567a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) int flags = ChildProcessHost::CHILD_ALLOW_SELF; 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = ChildProcessHost::CHILD_NORMAL; 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::FilePath exe_path = ChildProcessHost::GetChildPath(flags); 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (exe_path.empty()) 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 5775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // On Windows 64-bit NaCl loader is called nacl64.exe instead of chrome.exe 5785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (RunningOnWOW64()) { 579f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (!NaClBrowser::GetInstance()->GetNaCl64ExePath(&exe_path)) { 580ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("could not get path to nacl64.exe"); 5815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 5822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 583a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 584a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#ifdef _DLL 585a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // When using the DLL CRT on Windows, we need to amend the PATH to include 586a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // the location of the x64 CRT DLLs. This is only the case when using a 587a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // component=shared_library build (i.e. generally dev debug builds). The 588a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // x86 CRT DLLs are in e.g. out\Debug for chrome.exe etc., so the x64 ones 589a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // are put in out\Debug\x64 which we add to the PATH here so that loader 590a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // can find them. See http://crbug.com/346034. 591a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) scoped_ptr<base::Environment> env(base::Environment::Create()); 592a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) static const char kPath[] = "PATH"; 593a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string old_path; 594a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::FilePath module_path; 595a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!PathService::Get(base::FILE_MODULE, &module_path)) { 596a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) SendErrorToRenderer("could not get path to current module"); 597a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return false; 598a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 599a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string x64_crt_path = 600a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::WideToUTF8(module_path.DirName().Append(L"x64").value()); 601a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!env->GetVar(kPath, &old_path)) { 602a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) env->SetVar(kPath, x64_crt_path); 603a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } else if (!IsInPath(old_path, x64_crt_path)) { 604a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string new_path(old_path); 605a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) new_path.append(";"); 606a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) new_path.append(x64_crt_path); 607a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) env->SetVar(kPath, new_path); 608a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 609a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif // _DLL 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 6125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<CommandLine> cmd_line(new CommandLine(exe_path)); 614f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) CopyNaClCommandLineArguments(cmd_line.get()); 6155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line->AppendSwitchASCII(switches::kProcessType, 617e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch (uses_nonsfi_mode_ ? 618e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch switches::kNaClLoaderNonSfiProcess : 619e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch switches::kNaClLoaderProcess)); 6205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line->AppendSwitchASCII(switches::kProcessChannelID, channel_id); 621f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (NaClBrowser::GetDelegate()->DialogsAreSuppressed()) 6225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line->AppendSwitch(switches::kNoErrorDialogs); 6235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // On Windows we might need to start the broker process to launch a new loader 6255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 6265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (RunningOnWOW64()) { 6272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!NaClBrokerService::GetInstance()->LaunchLoader( 6282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) weak_factory_.GetWeakPtr(), channel_id)) { 629ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("broker service did not launch process"); 6302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 6312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 632a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 635a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) process_->Launch( 636a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) new NaClSandboxedProcessLauncherDelegate(process_->GetHost()), 637a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) cmd_line.release()); 6385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 6395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::OnMessageReceived(const IPC::Message& msg) { 6425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool handled = true; 643010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) if (uses_nonsfi_mode_) { 644010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // IPC messages relating to NaCl's validation cache must not be exposed 645010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // in Non-SFI Mode, otherwise a Non-SFI nexe could use 646010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // SetKnownToValidate to create a hole in the SFI sandbox. 647010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_BEGIN_MESSAGE_MAP(NaClProcessHost, msg) 648010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessHostMsg_PpapiChannelsCreated, 649010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnPpapiChannelsCreated) 650010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_UNHANDLED(handled = false) 651010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_END_MESSAGE_MAP() 652010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } else { 653010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_BEGIN_MESSAGE_MAP(NaClProcessHost, msg) 654010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessMsg_QueryKnownToValidate, 655010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnQueryKnownToValidate) 656010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessMsg_SetKnownToValidate, 657010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnSetKnownToValidate) 658010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER_DELAY_REPLY(NaClProcessMsg_ResolveFileToken, 659010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnResolveFileToken) 6605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 661010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER_DELAY_REPLY( 662010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) NaClProcessMsg_AttachDebugExceptionHandler, 663010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnAttachDebugExceptionHandler) 664cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessHostMsg_DebugStubPortSelected, 665cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) OnDebugStubPortSelected) 6665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 667010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessHostMsg_PpapiChannelsCreated, 668010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnPpapiChannelsCreated) 669010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_UNHANDLED(handled = false) 670010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_END_MESSAGE_MAP() 671010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } 6725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return handled; 6735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnProcessLaunched() { 6765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!StartWithLaunchedProcess()) 6775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 6785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Called when the NaClBrowser singleton has been fully initialized. 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnResourcesReady() { 682f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 6832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!nacl_browser->IsReady()) { 684ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("could not acquire shared resources needed by NaCl"); 6852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) delete this; 686a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } else if (!StartNaClExecution()) { 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::ReplyToRenderer( 692a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const IPC::ChannelHandle& ppapi_channel_handle, 6930529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& trusted_channel_handle, 6940529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& manifest_service_channel_handle) { 6957dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#if defined(OS_WIN) 6967dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // If we are on 64-bit Windows, the NaCl process's sandbox is 6977dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // managed by a different process from the renderer's sandbox. We 6987dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // need to inform the renderer's sandbox about the NaCl process so 6997dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // that the renderer can send handles to the NaCl process using 7007dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // BrokerDuplicateHandle(). 7017dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch if (RunningOnWOW64()) { 7027dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch if (!content::BrokerAddTargetPeer(process_->GetData().handle)) { 703ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("BrokerAddTargetPeer() failed"); 7047dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch return false; 7057dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch } 7067dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch } 7077dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#endif 7087dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 709a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) FileDescriptor imc_handle_for_renderer; 7105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 7112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Copy the handle into the renderer process. 7122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) HANDLE handle_in_renderer; 7132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!DuplicateHandle(base::GetCurrentProcessHandle(), 7142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<HANDLE>( 7152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_renderer), 7167dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch nacl_host_message_filter_->PeerHandle(), 7172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) &handle_in_renderer, 7182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 0, // Unused given DUPLICATE_SAME_ACCESS. 7192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) FALSE, 7202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) { 721ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("DuplicateHandle() failed"); 7222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 7232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 724a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) imc_handle_for_renderer = reinterpret_cast<FileDescriptor>( 7252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) handle_in_renderer); 7265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 7272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // No need to dup the imc_handle - we don't pass it anywhere else so 7282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // it cannot be closed. 729f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) FileDescriptor imc_handle; 7302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) imc_handle.fd = internal_->socket_for_renderer; 7312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) imc_handle.auto_close = true; 732a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) imc_handle_for_renderer = imc_handle; 7335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 7345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const ChildProcessData& data = process_->GetData(); 736ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendMessageToRenderer( 737a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) NaClLaunchResult(imc_handle_for_renderer, 738a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ppapi_channel_handle, 739a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) trusted_channel_handle, 7400529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch manifest_service_channel_handle, 741a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::GetProcId(data.handle), 742a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) data.id), 743ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch std::string() /* error_message */); 7442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_renderer = NACL_INVALID_HANDLE; 7455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 7465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 7475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 748ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdochvoid NaClProcessHost::SendErrorToRenderer(const std::string& error_message) { 749ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch LOG(ERROR) << "NaCl process launch failed: " << error_message; 750f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) SendMessageToRenderer(NaClLaunchResult(), error_message); 751ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch} 752ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 753ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdochvoid NaClProcessHost::SendMessageToRenderer( 754f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const NaClLaunchResult& result, 755ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch const std::string& error_message) { 756ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch DCHECK(nacl_host_message_filter_); 757ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch DCHECK(reply_msg_); 758ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch if (nacl_host_message_filter_ != NULL && reply_msg_ != NULL) { 759ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch NaClHostMsg_LaunchNaCl::WriteReplyParams( 760ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch reply_msg_, result, error_message); 761ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch nacl_host_message_filter_->Send(reply_msg_); 762ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch nacl_host_message_filter_ = NULL; 763ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch reply_msg_ = NULL; 764ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch } 765ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch} 766ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 767cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)void NaClProcessHost::SetDebugStubPort(int port) { 768cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 769cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nacl_browser->SetProcessGdbDebugStubPort(process_->GetData().id, port); 770cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 771cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 772cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#if defined(OS_POSIX) 7735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TCP port we chose for NaCl debug stub. It can be any other number. 7745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)static const int kInitialDebugStubPort = 4014; 7755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 776424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)net::SocketDescriptor NaClProcessHost::GetDebugStubSocketHandle() { 777424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) net::SocketDescriptor s = net::kInvalidSocket; 7785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // We always try to allocate the default port first. If this fails, we then 7795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // allocate any available port. 7805d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // On success, if the test system has register a handler 7815d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // (GdbDebugStubPortListener), we fire a notification. 7825d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int port = kInitialDebugStubPort; 7835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) s = net::TCPListenSocket::CreateAndBind("127.0.0.1", port); 7845d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (s == net::kInvalidSocket) { 7852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) s = net::TCPListenSocket::CreateAndBindAnyPort("127.0.0.1", &port); 7865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 7875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (s != net::kInvalidSocket) { 788cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SetDebugStubPort(port); 7892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 790424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (s == net::kInvalidSocket) { 7912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "failed to open socket for debug stub"; 792424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) return net::kInvalidSocket; 7935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } else { 7945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) LOG(WARNING) << "debug stub on port " << port; 7952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 7965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (listen(s, 1)) { 7975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "listen() failed on debug stub socket"; 798a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (IGNORE_EINTR(close(s)) < 0) 7992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PLOG(ERROR) << "failed to close debug stub socket"; 800424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) return net::kInvalidSocket; 8015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return s; 8035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 806cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#if defined(OS_WIN) 807cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)void NaClProcessHost::OnDebugStubPortSelected(uint16_t debug_stub_port) { 808cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) CHECK(!uses_nonsfi_mode_); 809cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SetDebugStubPort(debug_stub_port); 810cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 811cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#endif 812cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 8135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::StartNaClExecution() { 814f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 8155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 816f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClStartParams params; 817116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 8182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Enable PPAPI proxy channel creation only for renderer processes. 8192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) params.enable_ipc_proxy = enable_ppapi_proxy(); 820116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (uses_nonsfi_mode_) { 821116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Currently, non-SFI mode is supported only on Linux. 822116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#if defined(OS_LINUX) 823116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // nexe_file_ still keeps the ownership at this moment, because |params| 824116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // may just be destroyed before sending IPC is properly processed. 825116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Note that although we set auto_close=true for FileDescriptor's 826116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // constructor, it is not automatically handled in its destructor as RAII. 827116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch params.nexe_file = 828116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::FileDescriptor(nexe_file_.GetPlatformFile(), true); 829116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // In non-SFI mode, we do not use SRPC. Make sure that the socketpair is 830116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // not created. 831116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DCHECK_EQ(internal_->socket_for_sel_ldr, NACL_INVALID_HANDLE); 832116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch#endif 833116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } else { 834010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.validation_cache_enabled = nacl_browser->ValidationCacheIsEnabled(); 835010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.validation_cache_key = nacl_browser->GetValidationCacheKey(); 836010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.version = NaClBrowser::GetDelegate()->GetVersionString(); 837010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.enable_exception_handling = enable_exception_handling_; 838010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.enable_debug_stub = enable_debug_stub_ && 839010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) NaClBrowser::GetDelegate()->URLMatchesDebugPatterns(manifest_url_); 840010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.uses_irt = uses_irt_; 841010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.enable_dyncode_syscalls = enable_dyncode_syscalls_; 8425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 843116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const ChildProcessData& data = process_->GetData(); 844116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (!ShareHandleToSelLdr(data.handle, 845116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch internal_->socket_for_sel_ldr, true, 846010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) ¶ms.handles)) { 8472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 848010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } 849116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 850116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (params.uses_irt) { 851116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const base::File& irt_file = nacl_browser->IrtFile(); 852116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch CHECK(irt_file.IsValid()); 853116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Send over the IRT file handle. We don't close our own copy! 854116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (!ShareHandleToSelLdr(data.handle, irt_file.GetPlatformFile(), false, 855116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch ¶ms.handles)) { 856116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return false; 857116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 858116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 8595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 861116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // For dynamic loading support, NaCl requires a file descriptor that 862116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // was created in /tmp, since those created with shm_open() are not 863116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // mappable with PROT_EXEC. Rather than requiring an extra IPC 864116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // round trip out of the sandbox, we create an FD here. 865116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::SharedMemory memory_buffer; 866116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::SharedMemoryCreateOptions options; 867116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch options.size = 1; 868116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch options.executable = true; 869116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (!memory_buffer.Create(options)) { 870116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DLOG(ERROR) << "Failed to allocate memory buffer"; 871116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return false; 872116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 873116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch FileDescriptor memory_fd; 874116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch memory_fd.fd = dup(memory_buffer.handle().fd); 875116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (memory_fd.fd < 0) { 876116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch DLOG(ERROR) << "Failed to dup() a file descriptor"; 877116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch return false; 878116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 879116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch memory_fd.auto_close = true; 880116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch params.handles.push_back(memory_fd); 8815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_POSIX) 884116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (params.enable_debug_stub) { 885116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch net::SocketDescriptor server_bound_socket = GetDebugStubSocketHandle(); 886116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (server_bound_socket != net::kInvalidSocket) { 887116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch params.debug_stub_server_bound_socket = 888116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch FileDescriptor(server_bound_socket, true); 889116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 8905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 892116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 8935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 894116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // Here we are about to send the IPC, so release file descriptors to delegate 895116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // the ownership to the message. 896116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (uses_nonsfi_mode_) { 897116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch nexe_file_.TakePlatformFile(); 898116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } else { 899116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch internal_->socket_for_sel_ldr = NACL_INVALID_HANDLE; 900116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch } 9015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 902116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch process_->Send(new NaClProcessMsg_Start(params)); 9035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 9045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 9055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This method is called when NaClProcessHostMsg_PpapiChannelCreated is 9075d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// received. 9085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void NaClProcessHost::OnPpapiChannelsCreated( 9095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const IPC::ChannelHandle& browser_channel_handle, 910a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const IPC::ChannelHandle& ppapi_renderer_channel_handle, 9110529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& trusted_renderer_channel_handle, 9120529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& manifest_service_channel_handle) { 913a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!enable_ppapi_proxy()) { 9140529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch ReplyToRenderer(IPC::ChannelHandle(), 9150529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch trusted_renderer_channel_handle, 9160529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch manifest_service_channel_handle); 917a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return; 918a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 919a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 9205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!ipc_proxy_channel_.get()) { 9212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK_EQ(PROCESS_TYPE_NACL_LOADER, process_->GetData().process_type); 9222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 92346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) ipc_proxy_channel_ = 92446d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) IPC::ChannelProxy::Create(browser_channel_handle, 92546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) IPC::Channel::MODE_CLIENT, 92646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) NULL, 92746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) base::MessageLoopProxy::current().get()); 9285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Create the browser ppapi host and enable PPAPI message dispatching to the 9295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // browser process. 9302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ppapi_host_.reset(content::BrowserPpapiHost::CreateExternalPluginProcess( 9312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ipc_proxy_channel_.get(), // sender 9325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) permissions_, 9335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->GetData().handle, 9345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ipc_proxy_channel_.get(), 9357d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) nacl_host_message_filter_->render_process_id(), 936c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) render_view_id_, 937c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) profile_directory_)); 9385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ppapi_host_->SetOnKeepaliveCallback( 9395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NaClBrowser::GetDelegate()->GetOnKeepaliveCallback()); 940c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 9415d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ppapi::PpapiNaClPluginArgs args; 9427d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) args.off_the_record = nacl_host_message_filter_->off_the_record(); 943c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) args.permissions = permissions_; 944effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch args.keepalive_throttle_interval_milliseconds = 945effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch keepalive_throttle_interval_milliseconds_; 946c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) CommandLine* cmdline = CommandLine::ForCurrentProcess(); 947c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(cmdline); 9485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string flag_whitelist[] = { 9495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) switches::kV, 9505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) switches::kVModule, 9515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) }; 952c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) for (size_t i = 0; i < arraysize(flag_whitelist); ++i) { 953c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::string value = cmdline->GetSwitchValueASCII(flag_whitelist[i]); 954c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!value.empty()) { 955c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) args.switch_names.push_back(flag_whitelist[i]); 956c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) args.switch_values.push_back(value); 957c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 958c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 959c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 960c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ppapi_host_->GetPpapiHost()->AddHostFactoryFilter( 961c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) scoped_ptr<ppapi::host::HostFactory>( 962f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetDelegate()->CreatePpapiHostFactory( 9637dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch ppapi_host_.get()))); 9642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Send a message to initialize the IPC dispatchers in the NaCl plugin. 9665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ipc_proxy_channel_->Send(new PpapiMsg_InitializeNaClDispatcher(args)); 9675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 9685d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Let the renderer know that the IPC channels are established. 969a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ReplyToRenderer(ppapi_renderer_channel_handle, 9700529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch trusted_renderer_channel_handle, 9710529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch manifest_service_channel_handle); 9725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 9735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Attempt to open more than 1 browser channel is not supported. 9745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Shut down the NaCl process. 9755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->GetHost()->ForceShutdown(); 9765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 9785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::StartWithLaunchedProcess() { 980f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 9815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (nacl_browser->IsReady()) { 983a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return StartNaClExecution(); 9845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else if (nacl_browser->IsOk()) { 9855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl_browser->WaitForResources( 9865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&NaClProcessHost::OnResourcesReady, 9875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) weak_factory_.GetWeakPtr())); 9885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 9895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 990ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("previously failed to acquire shared resources"); 9915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 9925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 9945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnQueryKnownToValidate(const std::string& signature, 9965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool* result) { 997010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 998f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 9995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *result = nacl_browser->QueryKnownToValidate(signature, off_the_record_); 10005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnSetKnownToValidate(const std::string& signature) { 1003010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 1004f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->SetKnownToValidate( 10050f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) signature, off_the_record_); 10065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 100890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)void NaClProcessHost::FileResolved( 100990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const base::FilePath& file_path, 1010f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) IPC::Message* reply_msg, 1011a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::File file) { 1012a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (file.IsValid()) { 1013a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) IPC::PlatformFileForTransit handle = IPC::TakeFileHandleForProcess( 1014a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) file.Pass(), 1015a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) process_->GetData().handle); 101690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 101790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 101890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) handle, 101990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) file_path); 102090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } else { 102190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 102290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 102390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::InvalidPlatformFileForTransit(), 1024f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::FilePath()); 102590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 102690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) Send(reply_msg); 102790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 102890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 102990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)void NaClProcessHost::OnResolveFileToken(uint64 file_token_lo, 103090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) uint64 file_token_hi, 103190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::Message* reply_msg) { 103290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Was the file registered? 103390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 103490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the file path cache is of bounded size, and old entries can get 103590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // evicted. If a large number of NaCl modules are being launched at once, 103690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // resolving the file_token may fail because the path cache was thrashed 103790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // while the file_token was in flight. In this case the query fails, and we 103890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // need to fall back to the slower path. 103990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 104090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // However: each NaCl process will consume 2-3 entries as it starts up, this 104190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // means that eviction will not happen unless you start up 33+ NaCl processes 104290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // at the same time, and this still requires worst-case timing. As a 104390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // practical matter, no entries should be evicted prematurely. 104490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // The cache itself should take ~ (150 characters * 2 bytes/char + ~60 bytes 104590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // data structure overhead) * 100 = 35k when full, so making it bigger should 104690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // not be a problem, if needed. 104790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 104890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Each NaCl process will consume 2-3 entries because the manifest and main 104990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // nexe are currently not resolved. Shared libraries will be resolved. They 105090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // will be loaded sequentially, so they will only consume a single entry 105190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // while the load is in flight. 105290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 105390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // TODO(ncbray): track behavior with UMA. If entries are getting evicted or 105490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // bogus keys are getting queried, this would be good to know. 1055010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 105690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) base::FilePath file_path; 1057f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (!NaClBrowser::GetInstance()->GetFilePath( 10580f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) file_token_lo, file_token_hi, &file_path)) { 105990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 106090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 106190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::InvalidPlatformFileForTransit(), 1062f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::FilePath()); 106390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) Send(reply_msg); 106490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return; 106590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 106690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 106790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Open the file. 1068f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (!base::PostTaskAndReplyWithResult( 1069f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) content::BrowserThread::GetBlockingPool(), 107090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) FROM_HERE, 1071116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::Bind(OpenNaClReadExecImpl, file_path, true /* is_executable */), 107290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) base::Bind(&NaClProcessHost::FileResolved, 107390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) weak_factory_.GetWeakPtr(), 107490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) file_path, 107590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg))) { 107690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 107790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 107890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::InvalidPlatformFileForTransit(), 1079f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::FilePath()); 108090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) Send(reply_msg); 108190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 108290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 108390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 10845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 10855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnAttachDebugExceptionHandler(const std::string& info, 10865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply_msg) { 1087010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 10885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!AttachDebugExceptionHandler(info, reply_msg)) { 10895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Send failure message. 10905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClProcessMsg_AttachDebugExceptionHandler::WriteReplyParams(reply_msg, 10915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) false); 10925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Send(reply_msg); 10935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 10945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::AttachDebugExceptionHandler(const std::string& info, 10975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply_msg) { 10985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!enable_exception_handling_ && !enable_debug_stub_) { 10995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG(ERROR) << 11005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Debug exception handler requested by NaCl process when not enabled"; 11015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 11025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 11035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (debug_exception_handler_requested_) { 11045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The NaCl process should not request this multiple times. 11055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG(ERROR) << "Multiple AttachDebugExceptionHandler requests received"; 11065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 11075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 11085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) debug_exception_handler_requested_ = true; 11095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ProcessId nacl_pid = base::GetProcId(process_->GetData().handle); 1111f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::ProcessHandle temp_handle; 11125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We cannot use process_->GetData().handle because it does not have 11135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the necessary access rights. We open the new handle here rather 11145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // than in the NaCl broker process in case the NaCl loader process 11155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // dies before the NaCl broker process receives the message we send. 11165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The debug exception handler uses DebugActiveProcess() to attach, 11175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // but this takes a PID. We need to prevent the NaCl loader's PID 11185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // from being reused before DebugActiveProcess() is called, and 11195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // holding a process handle open achieves this. 11205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::OpenProcessHandleWithAccess( 11215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl_pid, 11225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessQueryInformation | 11235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessSuspendResume | 11245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessTerminate | 11255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessVMOperation | 11265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessVMRead | 11275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessVMWrite | 11282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::kProcessAccessDuplicateHandle | 11295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessWaitForTermination, 1130f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) &temp_handle)) { 11315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "Failed to get process handle"; 11325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 11335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1134f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::win::ScopedHandle process_handle(temp_handle); 11355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) attach_debug_exception_handler_reply_msg_.reset(reply_msg); 11375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If the NaCl loader is 64-bit, the process running its debug 11385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // exception handler must be 64-bit too, so we use the 64-bit NaCl 11395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // broker process for this. Otherwise, on a 32-bit system, we use 11405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the 32-bit browser process to run the debug exception handler. 11415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (RunningOnWOW64()) { 11425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NaClBrokerService::GetInstance()->LaunchDebugExceptionHandler( 11435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) weak_factory_.GetWeakPtr(), nacl_pid, process_handle, info); 11445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 11455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClStartDebugExceptionHandlerThread( 11465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_handle.Take(), info, 11475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::MessageLoopProxy::current(), 11485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&NaClProcessHost::OnDebugExceptionHandlerLaunchedByBroker, 11495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) weak_factory_.GetWeakPtr())); 11505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 11515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 11525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1154f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 1155f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} // namespace nacl 1156