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| 1 // Copyright 2007-2010 Google Inc. | |
| 2 // | |
| 3 // Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 // you may not use this file except in compliance with the License. | |
| 5 // You may obtain a copy of the License at | |
| 6 // | |
| 7 // http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 // | |
| 9 // Unless required by applicable law or agreed to in writing, software | |
| 10 // distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 // See the License for the specific language governing permissions and | |
| 13 // limitations under the License. | |
| 14 // ======================================================================== | |
| 15 // | |
| 16 // | |
| 17 // *** Documentation for OEM Installs *** | |
| 18 // | |
| 19 // A /oem install requires: | |
| 20 // * Per-machine install | |
| 21 // * Running as admin | |
| 22 // * Running in Windows audit mode (ConfigManager::IsWindowsInstalling()) | |
| 23 // * Offline installer (determined in LaunchHandoffProcess()) | |
| 24 // | |
| 25 // If the first three conditions are met, SetOemInstallState() writes the | |
| 26 // OemInstallTime registry value, which is used by IsOemInstalling() along with | |
| 27 // other logic to determine whether Omaha is running in an OEM install | |
| 28 // environment. Other objects use IsOemInstalling() - not | |
| 29 // ConfigureManager::IsWindowsInstalling() - to determine whether to run in a | |
| 30 // disabled mode for OEM factory installations. For example, the core exits | |
| 31 // immediately without checking for updates or Code Red events, no instances | |
| 32 // ping, and persistent IDs are not saved. | |
| 33 | |
| 34 #include "omaha/common/oem_install_utils.h" | |
| 35 #include "omaha/base/debug.h" | |
| 36 #include "omaha/base/error.h" | |
| 37 #include "omaha/base/logging.h" | |
| 38 #include "omaha/base/reg_key.h" | |
| 39 #include "omaha/base/time.h" | |
| 40 #include "omaha/base/vistautil.h" | |
| 41 #include "omaha/common/config_manager.h" | |
| 42 #include "omaha/common/const_goopdate.h" | |
| 43 #include "omaha/common/goopdate_utils.h" | |
| 44 | |
| 45 namespace omaha { | |
| 46 | |
| 47 namespace oem_install_utils { | |
| 48 | |
| 49 HRESULT SetOemInstallState(bool is_machine) { | |
| 50 bool is_windows_installing = ConfigManager::Instance()->IsWindowsInstalling(); | |
| 51 if (!is_machine || !vista_util::IsUserAdmin() || !is_windows_installing) { | |
| 52 return GOOPDATE_E_OEM_NOT_MACHINE_AND_PRIVILEGED_AND_AUDIT_MODE; | |
| 53 } | |
| 54 | |
| 55 const DWORD now = Time64ToInt32(GetCurrent100NSTime()); | |
| 56 | |
| 57 OPT_LOG(L1, (_T("[Beginning OEM install][%u]"), now)); | |
| 58 | |
| 59 goopdate_utils::DeleteUserId(is_machine); | |
| 60 | |
| 61 return RegKey::SetValue( | |
| 62 ConfigManager::Instance()->machine_registry_update(), | |
| 63 kRegValueOemInstallTimeSec, | |
| 64 now); | |
| 65 } | |
| 66 | |
| 67 HRESULT ResetOemInstallState(bool is_machine) { | |
| 68 if (!is_machine) { | |
| 69 return E_INVALIDARG; | |
| 70 } | |
| 71 | |
| 72 OPT_LOG(L1, (_T("[Reset OEM install state][%u]"), | |
| 73 Time64ToInt32(GetCurrent100NSTime()))); | |
| 74 | |
| 75 HRESULT hr = RegKey::DeleteValue( | |
| 76 ConfigManager::Instance()->machine_registry_update(), | |
| 77 kRegValueOemInstallTimeSec); | |
| 78 | |
| 79 return hr; | |
| 80 } | |
| 81 | |
| 82 // Always returns false if !is_machine. This prevents ever blocking per-user | |
| 83 // instances. | |
| 84 // Returns true if OEM install time is present and it has been less than | |
| 85 // kMinOemModeSec since the OEM install. | |
| 86 // Non-OEM installs can never be blocked from updating because OEM install time | |
| 87 // will not be present. | |
| 88 bool IsOemInstalling(bool is_machine) { | |
| 89 if (!is_machine) { | |
| 90 return false; | |
| 91 } | |
| 92 | |
| 93 DWORD oem_install_time_seconds = 0; | |
| 94 if (FAILED(RegKey::GetValue(MACHINE_REG_UPDATE, | |
| 95 kRegValueOemInstallTimeSec, | |
| 96 &oem_install_time_seconds))) { | |
| 97 CORE_LOG(L3, (_T("[IsOemInstalling][OemInstallTime not found]"))); | |
| 98 return false; | |
| 99 } | |
| 100 | |
| 101 const uint32 now_seconds = Time64ToInt32(GetCurrent100NSTime()); | |
| 102 if (now_seconds < oem_install_time_seconds) { | |
| 103 CORE_LOG(LW, (_T("[possible time warp detected][now %u][last checked %u]"), | |
| 104 now_seconds, oem_install_time_seconds)); | |
| 105 } | |
| 106 const int time_difference_seconds = | |
| 107 abs(static_cast<int>(now_seconds - oem_install_time_seconds)); | |
| 108 | |
| 109 ASSERT1(0 <= time_difference_seconds); | |
| 110 const bool result = time_difference_seconds < kMinOemModeSec ? true : false; | |
| 111 | |
| 112 CORE_LOG(L3, (_T("[now %u][OEM install time %u][time difference %u][%d]"), | |
| 113 now_seconds, oem_install_time_seconds, time_difference_seconds, | |
| 114 result)); | |
| 115 return result; | |
| 116 } | |
| 117 | |
| 118 } // namespace oem_install_utils | |
| 119 | |
| 120 } // namespace omaha | |
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Chromium Code Reviews
Issue 624713003:
Keep only base/extractor.[cc|h]. (Closed)
Base URL: https://chromium.googlesource.com/external/omaha.git@master