nacl_process_host.cc revision cedac228d2dd51db4b79ea1e72c7f249408ee061
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" 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/common/child_process_host.h" 427dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#include "content/public/common/content_switches.h" 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "content/public/common/process_type.h" 44a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#include "content/public/common/sandboxed_process_launcher_delegate.h" 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ipc/ipc_channel.h" 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ipc/ipc_switches.h" 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "native_client/src/shared/imc/nacl_imc_c.h" 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_util.h" 49c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "net/socket/tcp_listen_socket.h" 507dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#include "ppapi/host/host_factory.h" 51c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "ppapi/host/ppapi_host.h" 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/proxy/ppapi_messages.h" 53effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch#include "ppapi/shared_impl/ppapi_constants.h" 545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "ppapi/shared_impl/ppapi_nacl_plugin_args.h" 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_POSIX) 57effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <fcntl.h> 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ipc/ipc_channel_posix.h" 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(OS_WIN) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/threading/thread.h" 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/win/scoped_handle.h" 66f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "components/nacl/browser/nacl_broker_service_win.h" 67a3f7b4e666c476898878fa745f637129375cd889Ben Murdoch#include "components/nacl/common/nacl_debug_exception_handler_win.h" 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/common/sandbox_init.h" 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::BrowserThread; 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::ChildProcessData; 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::ChildProcessHost; 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using ppapi::proxy::SerializedHandle; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 763551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#if defined(OS_WIN) 773551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 783551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)namespace { 793551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 803551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// Looks for the largest contiguous unallocated region of address 813551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// space and returns it via |*out_addr| and |*out_size|. 823551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void FindAddressSpace(base::ProcessHandle process, 833551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) char** out_addr, size_t* out_size) { 843551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_addr = NULL; 853551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_size = 0; 863551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) char* addr = 0; 873551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) while (true) { 883551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) MEMORY_BASIC_INFORMATION info; 893551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) size_t result = VirtualQueryEx(process, static_cast<void*>(addr), 903551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) &info, sizeof(info)); 913551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (result < sizeof(info)) 923551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) break; 933551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (info.State == MEM_FREE && info.RegionSize > *out_size) { 943551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_addr = addr; 953551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) *out_size = info.RegionSize; 963551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) addr += info.RegionSize; 983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 993551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 1003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 101a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#ifdef _DLL 102a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 103a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)bool IsInPath(const std::string& path_env_var, const std::string& dir) { 104a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::vector<std::string> split; 105a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::SplitString(path_env_var, ';', &split); 106a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) for (std::vector<std::string>::const_iterator i(split.begin()); 107a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) i != split.end(); 108a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ++i) { 109a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (*i == dir) 110a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 111a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 112a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return false; 113a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 114a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 115a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif // _DLL 116a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1173551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} // namespace 1183551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1193551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)namespace nacl { 1203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1213551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// Allocates |size| bytes of address space in the given process at a 1223551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// randomised address. 1233551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void* AllocateAddressSpaceASLR(base::ProcessHandle process, size_t size) { 1243551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) char* addr; 1253551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) size_t avail_size; 1263551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) FindAddressSpace(process, &addr, &avail_size); 1273551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (avail_size < size) 1283551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return NULL; 1293551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) size_t offset = base::RandGenerator(avail_size - size); 1303551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const int kPageSize = 0x10000; 1313551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) void* request_addr = 1323551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) reinterpret_cast<void*>(reinterpret_cast<uint64>(addr + offset) 1333551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) & ~(kPageSize - 1)); 1343551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return VirtualAllocEx(process, request_addr, size, 1353551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) MEM_RESERVE, PAGE_NOACCESS); 1363551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 1373551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1383551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} // namespace nacl 1393551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1403551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#endif // defined(OS_WIN) 1413551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool RunningOnWOW64() { 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (base::win::OSInfo::GetInstance()->wow64_status() == 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::win::OSInfo::WOW64_ENABLED); 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 149a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// NOTE: changes to this class need to be reviewed by the security team. 1522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class NaClSandboxedProcessLauncherDelegate 1532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : public content::SandboxedProcessLauncherDelegate { 1542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 155a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) NaClSandboxedProcessLauncherDelegate(ChildProcessHost* host) 156a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_POSIX) 157a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) : ipc_fd_(host->TakeClientFileDescriptor()) 158a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif 159a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) {} 160a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual ~NaClSandboxedProcessLauncherDelegate() {} 1622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 163a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_WIN) 1642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void PostSpawnTarget(base::ProcessHandle process) { 1652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // For Native Client sel_ldr processes on 32-bit Windows, reserve 1 GB of 1662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // address space to prevent later failure due to address space fragmentation 1672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // from .dll loading. The NaCl process will attempt to locate this space by 1682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // scanning the address space using VirtualQuery. 1692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(bbudge) Handle the --no-sandbox case. 1702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // http://code.google.com/p/nativeclient/issues/detail?id=2131 1713551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const SIZE_T kNaClSandboxSize = 1 << 30; 1723551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (!nacl::AllocateAddressSpaceASLR(process, kNaClSandboxSize)) { 1732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DLOG(WARNING) << "Failed to reserve address space for Native Client"; 1742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 176a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#elif defined(OS_POSIX) 177a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual bool ShouldUseZygote() OVERRIDE { 178a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 179a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 180a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual int GetIpcFd() OVERRIDE { 181a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return ipc_fd_; 182a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 1832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif // OS_WIN 1842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 185a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) private: 186a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_POSIX) 187a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) int ipc_fd_; 188a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif // OS_POSIX 189a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)}; 190a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 1912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void SetCloseOnExec(NaClHandle fd) { 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_POSIX) 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = fcntl(fd, F_GETFD); 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_NE(flags, -1); 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc = fcntl(fd, F_SETFD, flags | FD_CLOEXEC); 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_EQ(rc, 0); 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool ShareHandleToSelLdr( 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ProcessHandle processh, 2022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle sourceh, 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool close_source, 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::vector<nacl::FileDescriptor> *handles_for_sel_ldr) { 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HANDLE channel; 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = DUPLICATE_SAME_ACCESS; 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (close_source) 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) flags |= DUPLICATE_CLOSE_SOURCE; 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!DuplicateHandle(GetCurrentProcess(), 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<HANDLE>(sourceh), 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) processh, 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &channel, 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 0, // Unused given DUPLICATE_SAME_ACCESS. 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FALSE, 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) flags)) { 2172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "DuplicateHandle() failed"; 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) handles_for_sel_ldr->push_back( 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<nacl::FileDescriptor>(channel)); 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl::FileDescriptor channel; 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) channel.fd = sourceh; 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) channel.auto_close = close_source; 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) handles_for_sel_ldr->push_back(channel); 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)ppapi::PpapiPermissions GetNaClPermissions(uint32 permission_bits) { 2322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Only allow NaCl plugins to request certain permissions. We don't want 2332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // a compromised renderer to be able to start a nacl plugin with e.g. Flash 2342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // permissions which may expand the surface area of the sandbox. 2352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) uint32 masked_bits = permission_bits & ppapi::PERMISSION_DEV; 2365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (content::PluginService::GetInstance()->PpapiDevChannelSupported()) 2375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) masked_bits |= ppapi::PERMISSION_DEV_CHANNEL; 2382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return ppapi::PpapiPermissions::GetForCommandLine(masked_bits); 2392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 243f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)namespace nacl { 244f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NaClProcessHost::NaClInternal { 2462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle socket_for_renderer; 2472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle socket_for_sel_ldr; 2482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClInternal() 2502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : socket_for_renderer(NACL_INVALID_HANDLE), 2512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) socket_for_sel_ldr(NACL_INVALID_HANDLE) { } 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ----------------------------------------------------------------------------- 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 256effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochunsigned NaClProcessHost::keepalive_throttle_interval_milliseconds_ = 257effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch ppapi::kKeepaliveThrottleIntervalDefaultMilliseconds; 258effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NaClProcessHost::NaClProcessHost(const GURL& manifest_url, 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int render_view_id, 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32 permission_bits, 2622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool uses_irt, 263a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) bool uses_nonsfi_mode, 264c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool enable_dyncode_syscalls, 2657d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) bool enable_exception_handling, 2663551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) bool enable_crash_throttling, 267c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool off_the_record, 268c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const base::FilePath& profile_directory) 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : manifest_url_(manifest_url), 2702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) permissions_(GetNaClPermissions(permission_bits)), 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_launched_by_broker_(false), 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reply_msg_(NULL), 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) debug_exception_handler_requested_(false), 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) internal_(new NaClInternal()), 279c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) weak_factory_(this), 2802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) uses_irt_(uses_irt), 281a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) uses_nonsfi_mode_(uses_nonsfi_mode), 2827d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) enable_debug_stub_(false), 283c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) enable_dyncode_syscalls_(enable_dyncode_syscalls), 2847d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) enable_exception_handling_(enable_exception_handling), 2853551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) enable_crash_throttling_(enable_crash_throttling), 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) off_the_record_(off_the_record), 287c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) profile_directory_(profile_directory), 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) render_view_id_(render_view_id) { 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_.reset(content::BrowserChildProcessHost::Create( 2902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PROCESS_TYPE_NACL_LOADER, this)); 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Set the display name so the user knows what plugin the process is running. 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We aren't on the UI thread so getting the pref locale for language 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // formatting isn't possible, so IDN will be lost, but this is probably OK 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // for this use case. 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->SetName(net::FormatUrl(manifest_url_, std::string())); 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_debug_stub_ = CommandLine::ForCurrentProcess()->HasSwitch( 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kEnableNaClDebug); 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NaClProcessHost::~NaClProcessHost() { 303424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // Report exit status only if the process was successfully started. 304424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (process_->GetData().handle != base::kNullProcessHandle) { 305424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) int exit_code = 0; 306424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) process_->GetTerminationStatus(false /* known_dead */, &exit_code); 307424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) std::string message = 308424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) base::StringPrintf("NaCl process exited with status %i (0x%x)", 309424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) exit_code, exit_code); 310424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (exit_code == 0) { 311f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) VLOG(1) << message; 312424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) } else { 313424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) LOG(ERROR) << message; 314424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) } 315cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) NaClBrowser::GetInstance()->OnProcessEnd(process_->GetData().id); 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (internal_->socket_for_renderer != NACL_INVALID_HANDLE) { 3192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (NaClClose(internal_->socket_for_renderer) != 0) { 3202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NOTREACHED() << "NaClClose() failed"; 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (internal_->socket_for_sel_ldr != NACL_INVALID_HANDLE) { 3252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (NaClClose(internal_->socket_for_sel_ldr) != 0) { 3262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NOTREACHED() << "NaClClose() failed"; 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (reply_msg_) { 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The process failed to launch for some reason. 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Don't keep the renderer hanging. 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reply_msg_->set_reply_error(); 3347d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) nacl_host_message_filter_->Send(reply_msg_); 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (process_launched_by_broker_) { 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClBrokerService::GetInstance()->OnLoaderDied(); 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3433551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)void NaClProcessHost::OnProcessCrashed(int exit_status) { 3443551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (enable_crash_throttling_ && 3453551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) !CommandLine::ForCurrentProcess()->HasSwitch( 3463551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) switches::kDisablePnaclCrashThrottling)) { 347f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->OnProcessCrashed(); 3483551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 3493551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} 3503551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This is called at browser startup. 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 3538bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)void NaClProcessHost::EarlyStartup() { 354f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->EarlyStartup(); 355cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // Inform NaClBrowser that we exist and will have a debug port at some point. 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_LINUX) && !defined(OS_CHROMEOS) 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Open the IRT file early to make sure that it isn't replaced out from 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // under us by autoupdate. 359f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->EnsureIrtAvailable(); 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine* cmd = CommandLine::ForCurrentProcess(); 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN( 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NaCl.nacl-gdb", 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !cmd->GetSwitchValuePath(switches::kNaClGdb).empty()); 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN( 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NaCl.nacl-gdb-script", 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !cmd->GetSwitchValuePath(switches::kNaClGdbScript).empty()); 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_BOOLEAN( 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NaCl.enable-nacl-debug", 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd->HasSwitch(switches::kEnableNaClDebug)); 371a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string nacl_debug_mask = 372a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) cmd->GetSwitchValueASCII(switches::kNaClDebugMask); 373a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // By default, exclude debugging SSH and the PNaCl translator. 374a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // about::flags only allows empty flags as the default, so replace 375a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // the empty setting with the default. To debug all apps, use a wild-card. 376a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (nacl_debug_mask.empty()) { 377a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) nacl_debug_mask = "!*://*/*ssh_client.nmf,chrome://pnacl-translator/*"; 378a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 379a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) NaClBrowser::GetDelegate()->SetDebugPatterns(nacl_debug_mask); 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 382effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch// static 383effb81e5f8246d0db0270817048dc992db66e9fbBen Murdochvoid NaClProcessHost::SetPpapiKeepAliveThrottleForTesting( 384effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch unsigned milliseconds) { 385effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch keepalive_throttle_interval_milliseconds_ = milliseconds; 386effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch} 387effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::Launch( 3897d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) NaClHostMessageFilter* nacl_host_message_filter, 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply_msg, 391eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch const base::FilePath& manifest_path) { 3927d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) nacl_host_message_filter_ = nacl_host_message_filter; 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reply_msg_ = reply_msg; 394eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch manifest_path_ = manifest_path; 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3963551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // Do not launch the requested NaCl module if NaCl is marked "unstable" due 3973551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // to too many crashes within a given time period. 3983551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) if (enable_crash_throttling_ && 3993551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) !CommandLine::ForCurrentProcess()->HasSwitch( 4003551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) switches::kDisablePnaclCrashThrottling) && 401f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->IsThrottled()) { 4023551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SendErrorToRenderer("Process creation was throttled due to excessive" 4033551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) " crashes"); 4043551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) delete this; 4053551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) return; 4063551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) } 4073551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 408a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) const CommandLine* cmd = CommandLine::ForCurrentProcess(); 409a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)#if defined(OS_WIN) 410a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) if (cmd->HasSwitch(switches::kEnableNaClDebug) && 411a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) !cmd->HasSwitch(switches::kNoSandbox)) { 412a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) // We don't switch off sandbox automatically for security reasons. 413a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) SendErrorToRenderer("NaCl's GDB debug stub requires --no-sandbox flag" 414a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) " on Windows. See crbug.com/265624."); 415a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) delete this; 416a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) return; 417a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) } 418a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)#endif 419a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) if (cmd->HasSwitch(switches::kNaClGdb) && 420a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) !cmd->HasSwitch(switches::kEnableNaClDebug)) { 421a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) LOG(WARNING) << "--nacl-gdb flag requires --enable-nacl-debug flag"; 422a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) } 423a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles) 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Start getting the IRT open asynchronously while we launch the NaCl process. 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We'll make sure this actually finished in StartWithLaunchedProcess, below. 426f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl_browser->EnsureAllResourcesAvailable(); 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!nacl_browser->IsOk()) { 429ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("could not find all the resources needed" 430ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch " to launch the process"); 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch if (uses_nonsfi_mode_) { 436cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool nonsfi_mode_forced_by_command_line = false; 437cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool nonsfi_mode_allowed = false; 438e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch#if defined(OS_LINUX) 439cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nonsfi_mode_forced_by_command_line = 440cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) cmd->HasSwitch(switches::kEnableNaClNonSfiMode); 441cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL) 442cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nonsfi_mode_allowed = NaClBrowser::GetDelegate()->IsNonSfiModeAllowed( 443cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nacl_host_message_filter->profile_directory(), manifest_url_); 444cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#endif 445e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch#endif 446cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool nonsfi_mode_enabled = 447cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nonsfi_mode_forced_by_command_line || nonsfi_mode_allowed; 448cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 449cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (!nonsfi_mode_enabled) { 450cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SendErrorToRenderer( 451cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) "NaCl non-SFI mode is not available for this platform" 452cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) " and NaCl module."); 453e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch delete this; 454e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch return; 455e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch } 456e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch } 457e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch 4585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Rather than creating a socket pair in the renderer, and passing 4595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // one side through the browser to sel_ldr, socket pairs are created 4605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // in the browser and then passed to the renderer and sel_ldr. 4615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // 4625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This is mainly for the benefit of Windows, where sockets cannot 4635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // be passed in messages, but are copied via DuplicateHandle(). 4645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This means the sandboxed renderer cannot send handles to the 4655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // browser process. 4665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NaClHandle pair[2]; 4682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Create a connected socket 4692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (NaClSocketPair(pair) == -1) { 470ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("NaClSocketPair() failed"); 4712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) delete this; 4722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_renderer = pair[0]; 4752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_sel_ldr = pair[1]; 4762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SetCloseOnExec(pair[0]); 4772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SetCloseOnExec(pair[1]); 4785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Launch the process 4805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!LaunchSelLdr()) { 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 4825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnChannelConnected(int32 peer_pid) { 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!CommandLine::ForCurrentProcess()->GetSwitchValuePath( 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kNaClGdb).empty()) { 4887d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) LaunchNaClGdb(); 4895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 4935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnProcessLaunchedByBroker(base::ProcessHandle handle) { 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_launched_by_broker_ = true; 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->SetHandle(handle); 496cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SetDebugStubPort(nacl::kGdbDebugStubPortUnknown); 4975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!StartWithLaunchedProcess()) 4985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 4995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnDebugExceptionHandlerLaunchedByBroker(bool success) { 5025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply = attach_debug_exception_handler_reply_msg_.release(); 5035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClProcessMsg_AttachDebugExceptionHandler::WriteReplyParams(reply, success); 5045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Send(reply); 5055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 508010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)// Needed to handle sync messages in OnMessageReceived. 5095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::Send(IPC::Message* msg) { 5105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return process_->Send(msg); 5115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5137d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)bool NaClProcessHost::LaunchNaClGdb() { 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 5157d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) base::FilePath nacl_gdb = 5167d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) CommandLine::ForCurrentProcess()->GetSwitchValuePath(switches::kNaClGdb); 5177d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) CommandLine cmd_line(nacl_gdb); 5187d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#else 5195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine::StringType nacl_gdb = 5205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine::ForCurrentProcess()->GetSwitchValueNative( 5215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kNaClGdb); 5225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine::StringVector argv; 5235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We don't support spaces inside arguments in --nacl-gdb switch. 5245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SplitString(nacl_gdb, static_cast<CommandLine::CharType>(' '), &argv); 5255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine cmd_line(argv); 5267d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#endif 5275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--eval-command"); 5287d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) base::FilePath::StringType irt_path( 529f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->GetIrtFilePath().value()); 5307d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // Avoid back slashes because nacl-gdb uses posix escaping rules on Windows. 5317d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // See issue https://code.google.com/p/nativeclient/issues/detail?id=3482. 5327d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) std::replace(irt_path.begin(), irt_path.end(), '\\', '/'); 5337d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) cmd_line.AppendArgNative(FILE_PATH_LITERAL("nacl-irt \"") + irt_path + 5347d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) FILE_PATH_LITERAL("\"")); 535eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch if (!manifest_path_.empty()) { 5365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--eval-command"); 537eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch base::FilePath::StringType manifest_path_value(manifest_path_.value()); 5387d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) std::replace(manifest_path_value.begin(), manifest_path_value.end(), 5397d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) '\\', '/'); 5407d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) cmd_line.AppendArgNative(FILE_PATH_LITERAL("nacl-manifest \"") + 5417d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) manifest_path_value + FILE_PATH_LITERAL("\"")); 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--eval-command"); 5447d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) cmd_line.AppendArg("target remote :4014"); 5452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::FilePath script = CommandLine::ForCurrentProcess()->GetSwitchValuePath( 5465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switches::kNaClGdbScript); 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!script.empty()) { 5485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArg("--command"); 5495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line.AppendArgNative(script.value()); 5505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::LaunchProcess(cmd_line, base::LaunchOptions(), NULL); 5525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::LaunchSelLdr() { 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string channel_id = process_->GetHost()->CreateChannel(); 5562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (channel_id.empty()) { 557ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("CreateChannel() failed"); 5585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 5592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Build command line for nacl. 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The Native Client process needs to be able to allocate a 1GB contiguous 5655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // region to use as the client environment's virtual address space. ASLR 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // (PIE) interferes with this by making it possible that no gap large enough 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to accomodate this request will exist in the child process' address 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // space. Disable PIE for NaCl processes. See http://crbug.com/90221 and 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // http://code.google.com/p/nativeclient/issues/detail?id=2043. 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = ChildProcessHost::CHILD_NO_PIE; 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(OS_LINUX) 572a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) int flags = ChildProcessHost::CHILD_ALLOW_SELF; 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags = ChildProcessHost::CHILD_NORMAL; 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::FilePath exe_path = ChildProcessHost::GetChildPath(flags); 5785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (exe_path.empty()) 5795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 5805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 5825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // On Windows 64-bit NaCl loader is called nacl64.exe instead of chrome.exe 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (RunningOnWOW64()) { 584f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (!NaClBrowser::GetInstance()->GetNaCl64ExePath(&exe_path)) { 585ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("could not get path to nacl64.exe"); 5865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 5872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 588a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 589a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#ifdef _DLL 590a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // When using the DLL CRT on Windows, we need to amend the PATH to include 591a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // the location of the x64 CRT DLLs. This is only the case when using a 592a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // component=shared_library build (i.e. generally dev debug builds). The 593a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // x86 CRT DLLs are in e.g. out\Debug for chrome.exe etc., so the x64 ones 594a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // are put in out\Debug\x64 which we add to the PATH here so that loader 595a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // can find them. See http://crbug.com/346034. 596a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) scoped_ptr<base::Environment> env(base::Environment::Create()); 597a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) static const char kPath[] = "PATH"; 598a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string old_path; 599a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::FilePath module_path; 600a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!PathService::Get(base::FILE_MODULE, &module_path)) { 601a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) SendErrorToRenderer("could not get path to current module"); 602a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return false; 603a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 604a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string x64_crt_path = 605a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::WideToUTF8(module_path.DirName().Append(L"x64").value()); 606a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!env->GetVar(kPath, &old_path)) { 607a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) env->SetVar(kPath, x64_crt_path); 608a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } else if (!IsInPath(old_path, x64_crt_path)) { 609a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) std::string new_path(old_path); 610a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) new_path.append(";"); 611a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) new_path.append(x64_crt_path); 612a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) env->SetVar(kPath, new_path); 613a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 614a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif // _DLL 6155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 6175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<CommandLine> cmd_line(new CommandLine(exe_path)); 619f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) CopyNaClCommandLineArguments(cmd_line.get()); 6205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line->AppendSwitchASCII(switches::kProcessType, 622e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch (uses_nonsfi_mode_ ? 623e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch switches::kNaClLoaderNonSfiProcess : 624e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch switches::kNaClLoaderProcess)); 6255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line->AppendSwitchASCII(switches::kProcessChannelID, channel_id); 626f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (NaClBrowser::GetDelegate()->DialogsAreSuppressed()) 6275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) cmd_line->AppendSwitch(switches::kNoErrorDialogs); 6285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // On Windows we might need to start the broker process to launch a new loader 6305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 6315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (RunningOnWOW64()) { 6322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!NaClBrokerService::GetInstance()->LaunchLoader( 6332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) weak_factory_.GetWeakPtr(), channel_id)) { 634ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("broker service did not launch process"); 6352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 6362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 637a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return true; 6385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 640a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) process_->Launch( 641a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) new NaClSandboxedProcessLauncherDelegate(process_->GetHost()), 642a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) cmd_line.release()); 6435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::OnMessageReceived(const IPC::Message& msg) { 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool handled = true; 648010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) if (uses_nonsfi_mode_) { 649010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // IPC messages relating to NaCl's validation cache must not be exposed 650010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // in Non-SFI Mode, otherwise a Non-SFI nexe could use 651010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // SetKnownToValidate to create a hole in the SFI sandbox. 652010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_BEGIN_MESSAGE_MAP(NaClProcessHost, msg) 653010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessHostMsg_PpapiChannelsCreated, 654010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnPpapiChannelsCreated) 655010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_UNHANDLED(handled = false) 656010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_END_MESSAGE_MAP() 657010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } else { 658010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_BEGIN_MESSAGE_MAP(NaClProcessHost, msg) 659010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessMsg_QueryKnownToValidate, 660010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnQueryKnownToValidate) 661010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessMsg_SetKnownToValidate, 662010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnSetKnownToValidate) 663010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER_DELAY_REPLY(NaClProcessMsg_ResolveFileToken, 664010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnResolveFileToken) 6655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 666010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER_DELAY_REPLY( 667010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) NaClProcessMsg_AttachDebugExceptionHandler, 668010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnAttachDebugExceptionHandler) 669cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessHostMsg_DebugStubPortSelected, 670cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) OnDebugStubPortSelected) 6715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 672010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_HANDLER(NaClProcessHostMsg_PpapiChannelsCreated, 673010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) OnPpapiChannelsCreated) 674010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_MESSAGE_UNHANDLED(handled = false) 675010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) IPC_END_MESSAGE_MAP() 676010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } 6775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return handled; 6785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnProcessLaunched() { 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!StartWithLaunchedProcess()) 6825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Called when the NaClBrowser singleton has been fully initialized. 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnResourcesReady() { 687f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 6882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!nacl_browser->IsReady()) { 689ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("could not acquire shared resources needed by NaCl"); 6902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) delete this; 691a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } else if (!StartNaClExecution()) { 6925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete this; 6935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::ReplyToRenderer( 697a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const IPC::ChannelHandle& ppapi_channel_handle, 6980529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& trusted_channel_handle, 6990529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& manifest_service_channel_handle) { 7007dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#if defined(OS_WIN) 7017dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // If we are on 64-bit Windows, the NaCl process's sandbox is 7027dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // managed by a different process from the renderer's sandbox. We 7037dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // need to inform the renderer's sandbox about the NaCl process so 7047dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // that the renderer can send handles to the NaCl process using 7057dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // BrokerDuplicateHandle(). 7067dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch if (RunningOnWOW64()) { 7077dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch if (!content::BrokerAddTargetPeer(process_->GetData().handle)) { 708ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("BrokerAddTargetPeer() failed"); 7097dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch return false; 7107dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch } 7117dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch } 7127dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#endif 7137dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 714a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) FileDescriptor imc_handle_for_renderer; 7155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 7162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Copy the handle into the renderer process. 7172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) HANDLE handle_in_renderer; 7182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!DuplicateHandle(base::GetCurrentProcessHandle(), 7192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<HANDLE>( 7202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_renderer), 7217dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch nacl_host_message_filter_->PeerHandle(), 7222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) &handle_in_renderer, 7232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 0, // Unused given DUPLICATE_SAME_ACCESS. 7242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) FALSE, 7252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) { 726ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("DuplicateHandle() failed"); 7272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 7282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 729a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) imc_handle_for_renderer = reinterpret_cast<FileDescriptor>( 7302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) handle_in_renderer); 7315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 7322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // No need to dup the imc_handle - we don't pass it anywhere else so 7332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // it cannot be closed. 734f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) FileDescriptor imc_handle; 7352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) imc_handle.fd = internal_->socket_for_renderer; 7362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) imc_handle.auto_close = true; 737a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) imc_handle_for_renderer = imc_handle; 7385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 7395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const ChildProcessData& data = process_->GetData(); 741ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendMessageToRenderer( 742a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) NaClLaunchResult(imc_handle_for_renderer, 743a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ppapi_channel_handle, 744a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) trusted_channel_handle, 7450529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch manifest_service_channel_handle, 746a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::GetProcId(data.handle), 747a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) data.id), 748ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch std::string() /* error_message */); 7492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_renderer = NACL_INVALID_HANDLE; 7505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 7515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 7525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 753ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdochvoid NaClProcessHost::SendErrorToRenderer(const std::string& error_message) { 754ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch LOG(ERROR) << "NaCl process launch failed: " << error_message; 755f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) SendMessageToRenderer(NaClLaunchResult(), error_message); 756ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch} 757ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 758ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdochvoid NaClProcessHost::SendMessageToRenderer( 759f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const NaClLaunchResult& result, 760ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch const std::string& error_message) { 761ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch DCHECK(nacl_host_message_filter_); 762ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch DCHECK(reply_msg_); 763ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch if (nacl_host_message_filter_ != NULL && reply_msg_ != NULL) { 764ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch NaClHostMsg_LaunchNaCl::WriteReplyParams( 765ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch reply_msg_, result, error_message); 766ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch nacl_host_message_filter_->Send(reply_msg_); 767ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch nacl_host_message_filter_ = NULL; 768ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch reply_msg_ = NULL; 769ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch } 770ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch} 771ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 772cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)void NaClProcessHost::SetDebugStubPort(int port) { 773cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 774cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) nacl_browser->SetProcessGdbDebugStubPort(process_->GetData().id, port); 775cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 776cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 777cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#if defined(OS_POSIX) 7785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TCP port we chose for NaCl debug stub. It can be any other number. 7795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)static const int kInitialDebugStubPort = 4014; 7805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 781424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)net::SocketDescriptor NaClProcessHost::GetDebugStubSocketHandle() { 782424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) net::SocketDescriptor s = net::kInvalidSocket; 7835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // We always try to allocate the default port first. If this fails, we then 7845d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // allocate any available port. 7855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // On success, if the test system has register a handler 7865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // (GdbDebugStubPortListener), we fire a notification. 7875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int port = kInitialDebugStubPort; 7885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) s = net::TCPListenSocket::CreateAndBind("127.0.0.1", port); 7895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (s == net::kInvalidSocket) { 7902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) s = net::TCPListenSocket::CreateAndBindAnyPort("127.0.0.1", &port); 7915d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 7925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (s != net::kInvalidSocket) { 793cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SetDebugStubPort(port); 7942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 795424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (s == net::kInvalidSocket) { 7962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "failed to open socket for debug stub"; 797424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) return net::kInvalidSocket; 7985d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } else { 7995d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) LOG(WARNING) << "debug stub on port " << port; 8002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 8015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (listen(s, 1)) { 8025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "listen() failed on debug stub socket"; 803a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) if (IGNORE_EINTR(close(s)) < 0) 8042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) PLOG(ERROR) << "failed to close debug stub socket"; 805424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) return net::kInvalidSocket; 8065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return s; 8085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 811cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#if defined(OS_WIN) 812cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)void NaClProcessHost::OnDebugStubPortSelected(uint16_t debug_stub_port) { 813cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) CHECK(!uses_nonsfi_mode_); 814cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SetDebugStubPort(debug_stub_port); 815cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 816cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#endif 817cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 8185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::StartNaClExecution() { 819f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 8205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 821f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClStartParams params; 8222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Enable PPAPI proxy channel creation only for renderer processes. 8232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) params.enable_ipc_proxy = enable_ppapi_proxy(); 824010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) if (!uses_nonsfi_mode_) { 825010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.validation_cache_enabled = nacl_browser->ValidationCacheIsEnabled(); 826010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.validation_cache_key = nacl_browser->GetValidationCacheKey(); 827010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.version = NaClBrowser::GetDelegate()->GetVersionString(); 828010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.enable_exception_handling = enable_exception_handling_; 829010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.enable_debug_stub = enable_debug_stub_ && 830010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) NaClBrowser::GetDelegate()->URLMatchesDebugPatterns(manifest_url_); 831010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.uses_irt = uses_irt_; 832010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) params.enable_dyncode_syscalls = enable_dyncode_syscalls_; 833010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } 8345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const ChildProcessData& data = process_->GetData(); 8362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!ShareHandleToSelLdr(data.handle, 8372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_sel_ldr, true, 8382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ¶ms.handles)) { 8392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 8405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (params.uses_irt) { 843010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) const base::File& irt_file = nacl_browser->IrtFile(); 844010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(irt_file.IsValid()); 8452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Send over the IRT file handle. We don't close our own copy! 846010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) if (!ShareHandleToSelLdr(data.handle, irt_file.GetPlatformFile(), false, 847010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) ¶ms.handles)) { 8482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return false; 849010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } 8502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 8515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 8535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // For dynamic loading support, NaCl requires a file descriptor that 8545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // was created in /tmp, since those created with shm_open() are not 8555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // mappable with PROT_EXEC. Rather than requiring an extra IPC 8565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // round trip out of the sandbox, we create an FD here. 8575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SharedMemory memory_buffer; 8585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SharedMemoryCreateOptions options; 8595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) options.size = 1; 8605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) options.executable = true; 8615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!memory_buffer.Create(options)) { 8625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG(ERROR) << "Failed to allocate memory buffer"; 8635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 8645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 865f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) FileDescriptor memory_fd; 8665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memory_fd.fd = dup(memory_buffer.handle().fd); 8675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (memory_fd.fd < 0) { 8685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG(ERROR) << "Failed to dup() a file descriptor"; 8695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 8705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memory_fd.auto_close = true; 8725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) params.handles.push_back(memory_fd); 8735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_POSIX) 8765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (params.enable_debug_stub) { 877424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) net::SocketDescriptor server_bound_socket = GetDebugStubSocketHandle(); 878424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (server_bound_socket != net::kInvalidSocket) { 8795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) params.debug_stub_server_bound_socket = 880f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) FileDescriptor(server_bound_socket, true); 8815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 8845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->Send(new NaClProcessMsg_Start(params)); 8865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) internal_->socket_for_sel_ldr = NACL_INVALID_HANDLE; 8885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 8895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This method is called when NaClProcessHostMsg_PpapiChannelCreated is 8925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// received. 8935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void NaClProcessHost::OnPpapiChannelsCreated( 8945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const IPC::ChannelHandle& browser_channel_handle, 895a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const IPC::ChannelHandle& ppapi_renderer_channel_handle, 8960529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& trusted_renderer_channel_handle, 8970529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const IPC::ChannelHandle& manifest_service_channel_handle) { 898a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!enable_ppapi_proxy()) { 8990529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch ReplyToRenderer(IPC::ChannelHandle(), 9000529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch trusted_renderer_channel_handle, 9010529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch manifest_service_channel_handle); 902a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return; 903a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 904a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 9055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!ipc_proxy_channel_.get()) { 9062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK_EQ(PROCESS_TYPE_NACL_LOADER, process_->GetData().process_type); 9072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ipc_proxy_channel_.reset( 9095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) new IPC::ChannelProxy(browser_channel_handle, 9105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Channel::MODE_CLIENT, 9115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL, 9127d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) base::MessageLoopProxy::current().get())); 9135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Create the browser ppapi host and enable PPAPI message dispatching to the 9145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // browser process. 9152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ppapi_host_.reset(content::BrowserPpapiHost::CreateExternalPluginProcess( 9162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ipc_proxy_channel_.get(), // sender 9175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) permissions_, 9185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->GetData().handle, 9195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ipc_proxy_channel_.get(), 9207d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) nacl_host_message_filter_->render_process_id(), 921c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) render_view_id_, 922c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) profile_directory_)); 9235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ppapi_host_->SetOnKeepaliveCallback( 9245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NaClBrowser::GetDelegate()->GetOnKeepaliveCallback()); 925c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 9265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ppapi::PpapiNaClPluginArgs args; 9277d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) args.off_the_record = nacl_host_message_filter_->off_the_record(); 928c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) args.permissions = permissions_; 929effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch args.keepalive_throttle_interval_milliseconds = 930effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch keepalive_throttle_interval_milliseconds_; 931c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) CommandLine* cmdline = CommandLine::ForCurrentProcess(); 932c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(cmdline); 9335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string flag_whitelist[] = { 9345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) switches::kV, 9355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) switches::kVModule, 9365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) }; 937c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) for (size_t i = 0; i < arraysize(flag_whitelist); ++i) { 938c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::string value = cmdline->GetSwitchValueASCII(flag_whitelist[i]); 939c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!value.empty()) { 940c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) args.switch_names.push_back(flag_whitelist[i]); 941c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) args.switch_values.push_back(value); 942c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 943c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 944c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 945c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ppapi_host_->GetPpapiHost()->AddHostFactoryFilter( 946c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) scoped_ptr<ppapi::host::HostFactory>( 947f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetDelegate()->CreatePpapiHostFactory( 9487dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch ppapi_host_.get()))); 9492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 9505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Send a message to initialize the IPC dispatchers in the NaCl plugin. 9515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ipc_proxy_channel_->Send(new PpapiMsg_InitializeNaClDispatcher(args)); 9525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 9535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Let the renderer know that the IPC channels are established. 954a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) ReplyToRenderer(ppapi_renderer_channel_handle, 9550529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch trusted_renderer_channel_handle, 9560529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch manifest_service_channel_handle); 9575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 9585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Attempt to open more than 1 browser channel is not supported. 9595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Shut down the NaCl process. 9605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_->GetHost()->ForceShutdown(); 9615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 9635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::StartWithLaunchedProcess() { 965f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 9665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (nacl_browser->IsReady()) { 968a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return StartNaClExecution(); 9695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else if (nacl_browser->IsOk()) { 9705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl_browser->WaitForResources( 9715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&NaClProcessHost::OnResourcesReady, 9725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) weak_factory_.GetWeakPtr())); 9735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 9745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 975ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch SendErrorToRenderer("previously failed to acquire shared resources"); 9765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 9775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 9785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 9795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnQueryKnownToValidate(const std::string& signature, 9815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool* result) { 982010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 983f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser* nacl_browser = NaClBrowser::GetInstance(); 9845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *result = nacl_browser->QueryKnownToValidate(signature, off_the_record_); 9855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 9865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 9875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnSetKnownToValidate(const std::string& signature) { 988010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 989f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NaClBrowser::GetInstance()->SetKnownToValidate( 9900f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) signature, off_the_record_); 9915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 9925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 99390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)void NaClProcessHost::FileResolved( 99490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const base::FilePath& file_path, 995f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) IPC::Message* reply_msg, 996a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) base::File file) { 997a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (file.IsValid()) { 998a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) IPC::PlatformFileForTransit handle = IPC::TakeFileHandleForProcess( 999a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) file.Pass(), 1000a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) process_->GetData().handle); 100190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 100290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 100390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) handle, 100490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) file_path); 100590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } else { 100690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 100790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 100890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::InvalidPlatformFileForTransit(), 1009f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::FilePath()); 101090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 101190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) Send(reply_msg); 101290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 101390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 101490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)void NaClProcessHost::OnResolveFileToken(uint64 file_token_lo, 101590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) uint64 file_token_hi, 101690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::Message* reply_msg) { 101790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Was the file registered? 101890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 101990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the file path cache is of bounded size, and old entries can get 102090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // evicted. If a large number of NaCl modules are being launched at once, 102190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // resolving the file_token may fail because the path cache was thrashed 102290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // while the file_token was in flight. In this case the query fails, and we 102390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // need to fall back to the slower path. 102490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 102590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // However: each NaCl process will consume 2-3 entries as it starts up, this 102690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // means that eviction will not happen unless you start up 33+ NaCl processes 102790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // at the same time, and this still requires worst-case timing. As a 102890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // practical matter, no entries should be evicted prematurely. 102990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // The cache itself should take ~ (150 characters * 2 bytes/char + ~60 bytes 103090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // data structure overhead) * 100 = 35k when full, so making it bigger should 103190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // not be a problem, if needed. 103290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 103390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Each NaCl process will consume 2-3 entries because the manifest and main 103490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // nexe are currently not resolved. Shared libraries will be resolved. They 103590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // will be loaded sequentially, so they will only consume a single entry 103690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // while the load is in flight. 103790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 103890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // TODO(ncbray): track behavior with UMA. If entries are getting evicted or 103990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // bogus keys are getting queried, this would be good to know. 1040010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 104190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) base::FilePath file_path; 1042f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (!NaClBrowser::GetInstance()->GetFilePath( 10430f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) file_token_lo, file_token_hi, &file_path)) { 104490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 104590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 104690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::InvalidPlatformFileForTransit(), 1047f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::FilePath()); 104890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) Send(reply_msg); 104990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return; 105090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 105190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 105290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Open the file. 1053f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (!base::PostTaskAndReplyWithResult( 1054f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) content::BrowserThread::GetBlockingPool(), 105590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) FROM_HERE, 1056f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::Bind(OpenNaClExecutableImpl, file_path), 105790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) base::Bind(&NaClProcessHost::FileResolved, 105890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) weak_factory_.GetWeakPtr(), 105990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) file_path, 106090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg))) { 106190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NaClProcessMsg_ResolveFileToken::WriteReplyParams( 106290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) reply_msg, 106390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) IPC::InvalidPlatformFileForTransit(), 1064f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::FilePath()); 106590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) Send(reply_msg); 106690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 106790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 106890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 10695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 10705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NaClProcessHost::OnAttachDebugExceptionHandler(const std::string& info, 10715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply_msg) { 1072010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) CHECK(!uses_nonsfi_mode_); 10735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!AttachDebugExceptionHandler(info, reply_msg)) { 10745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Send failure message. 10755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClProcessMsg_AttachDebugExceptionHandler::WriteReplyParams(reply_msg, 10765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) false); 10775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Send(reply_msg); 10785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 10795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 10805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NaClProcessHost::AttachDebugExceptionHandler(const std::string& info, 10825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IPC::Message* reply_msg) { 10835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!enable_exception_handling_ && !enable_debug_stub_) { 10845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG(ERROR) << 10855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Debug exception handler requested by NaCl process when not enabled"; 10865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 10875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 10885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (debug_exception_handler_requested_) { 10895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The NaCl process should not request this multiple times. 10905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG(ERROR) << "Multiple AttachDebugExceptionHandler requests received"; 10915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 10925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 10935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) debug_exception_handler_requested_ = true; 10945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 10955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ProcessId nacl_pid = base::GetProcId(process_->GetData().handle); 1096f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::ProcessHandle temp_handle; 10975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We cannot use process_->GetData().handle because it does not have 10985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the necessary access rights. We open the new handle here rather 10995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // than in the NaCl broker process in case the NaCl loader process 11005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // dies before the NaCl broker process receives the message we send. 11015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The debug exception handler uses DebugActiveProcess() to attach, 11025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // but this takes a PID. We need to prevent the NaCl loader's PID 11035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // from being reused before DebugActiveProcess() is called, and 11045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // holding a process handle open achieves this. 11055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::OpenProcessHandleWithAccess( 11065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nacl_pid, 11075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessQueryInformation | 11085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessSuspendResume | 11095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessTerminate | 11105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessVMOperation | 11115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessVMRead | 11125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessVMWrite | 11132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::kProcessAccessDuplicateHandle | 11145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::kProcessAccessWaitForTermination, 1115f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) &temp_handle)) { 11165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(ERROR) << "Failed to get process handle"; 11175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 11185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1119f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) base::win::ScopedHandle process_handle(temp_handle); 11205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 11215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) attach_debug_exception_handler_reply_msg_.reset(reply_msg); 11225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If the NaCl loader is 64-bit, the process running its debug 11235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // exception handler must be 64-bit too, so we use the 64-bit NaCl 11245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // broker process for this. Otherwise, on a 32-bit system, we use 11255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the 32-bit browser process to run the debug exception handler. 11265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (RunningOnWOW64()) { 11275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NaClBrokerService::GetInstance()->LaunchDebugExceptionHandler( 11285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) weak_factory_.GetWeakPtr(), nacl_pid, process_handle, info); 11295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 11305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NaClStartDebugExceptionHandlerThread( 11315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) process_handle.Take(), info, 11325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::MessageLoopProxy::current(), 11335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&NaClProcessHost::OnDebugExceptionHandlerLaunchedByBroker, 11345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) weak_factory_.GetWeakPtr())); 11355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 11365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 11375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 11385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 1139f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 1140f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} // namespace nacl 1141