chrome/app/kasko_client.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #if defined(SYZYASAN)
   6
   7 #include "chrome/app/kasko_client.h"
   8
   9 #include <windows.h>
  10
  11 #include <string>
  12
  13 #include "base/debug/crash_logging.h"
  14 #include "base/guid.h"
  15 #include "base/logging.h"
  16 #include "base/process/process_handle.h"
  17 #include "base/win/wrapped_window_proc.h"
  18 #include "breakpad/src/client/windows/common/ipc_protocol.h"
  19 #include "chrome/app/chrome_watcher_client_win.h"
  20 #include "chrome/chrome_watcher/chrome_watcher_main_api.h"
  21 #include "chrome/common/chrome_constants.h"
  22 #include "chrome/common/crash_keys.h"
  23 #include "components/crash/app/crash_keys_win.h"
  24 #include "syzygy/kasko/api/client.h"
  25
  26 namespace {
  27 ChromeWatcherClient* g_chrome_watcher_client = nullptr;
  28 }  // namespace
  29
  30 KaskoClient::KaskoClient(ChromeWatcherClient* chrome_watcher_client) {
  31   DCHECK(!g_chrome_watcher_client);
  32   g_chrome_watcher_client = chrome_watcher_client;
  33
  34   kasko::api::InitializeClient(
  35       GetKaskoEndpoint(base::GetCurrentProcId()).c_str());
  36 }
  37
  38 KaskoClient::~KaskoClient() {
  39   DCHECK(g_chrome_watcher_client);
  40   g_chrome_watcher_client = nullptr;
  41   kasko::api::ShutdownClient();
  42 }
  43
  44 extern "C" void __declspec(dllexport) ReportCrashWithProtobuf(
  45     EXCEPTION_POINTERS* info, const char* protobuf, size_t protobuf_length) {
  46   static_assert(
  47       sizeof(kasko::api::CrashKey) == sizeof(google_breakpad::CustomInfoEntry),
  48       "CrashKey and CustomInfoEntry structs are not compatible.");
  49   static_assert(offsetof(kasko::api::CrashKey, name) ==
  50                     offsetof(google_breakpad::CustomInfoEntry, name),
  51                 "CrashKey and CustomInfoEntry structs are not compatible.");
  52   static_assert(offsetof(kasko::api::CrashKey, value) ==
  53                     offsetof(google_breakpad::CustomInfoEntry, value),
  54                 "CrashKey and CustomInfoEntry structs are not compatible.");
  55   static_assert(
  56       sizeof(reinterpret_cast<kasko::api::CrashKey*>(0)->name) ==
  57           sizeof(reinterpret_cast<google_breakpad::CustomInfoEntry*>(0)->name),
  58       "CrashKey and CustomInfoEntry structs are not compatible.");
  59   static_assert(
  60       sizeof(reinterpret_cast<kasko::api::CrashKey*>(0)->value) ==
  61           sizeof(reinterpret_cast<google_breakpad::CustomInfoEntry*>(0)->value),
  62       "CrashKey and CustomInfoEntry structs are not compatible.");
  63
  64   // Assign a GUID that can be used to correlate the Kasko report to the
  65   // Breakpad report, to verify data consistency.
  66   std::string guid = base::GenerateGUID();
  67   {
  68     base::debug::ScopedCrashKey kasko_guid(crash_keys::kKaskoGuid, guid);
  69     size_t crash_key_count =
  70         breakpad::CrashKeysWin::keeper()->custom_info_entries().size();
  71     const kasko::api::CrashKey* crash_keys =
  72         reinterpret_cast<const kasko::api::CrashKey*>(
  73             breakpad::CrashKeysWin::keeper()->custom_info_entries().data());
  74
  75     if (g_chrome_watcher_client &&
  76         g_chrome_watcher_client->EnsureInitialized()) {
  77       kasko::api::SendReport(info, protobuf, protobuf_length, crash_keys,
  78                              crash_key_count);
  79     }
  80   }
  81
  82   {
  83     base::debug::ScopedCrashKey kasko_equivalent_guid(
  84         crash_keys::kKaskoEquivalentGuid, guid);
  85     // While Kasko remains experimental, also report via Breakpad.
  86     base::win::WinProcExceptionFilter crash_for_exception =
  87         reinterpret_cast<base::win::WinProcExceptionFilter>(::GetProcAddress(
  88             ::GetModuleHandle(chrome::kBrowserProcessExecutableName),
  89             "CrashForException"));
  90     crash_for_exception(info);
  91   }
  92 }
  93
  94 #endif  // defined(SYZYASAN)