1 // 2 // Copyright (C) 2015 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #include "update_engine/binder_service_android.h" 18 19 #include <base/bind.h> 20 #include <base/logging.h> 21 #include <binderwrapper/binder_wrapper.h> 22 #include <brillo/errors/error.h> 23 #include <utils/String8.h> 24 25 using android::binder::Status; 26 using android::os::IUpdateEngineCallback; 27 28 namespace { 29 Status ErrorPtrToStatus(const brillo::ErrorPtr& error) { 30 return Status::fromServiceSpecificError( 31 1, android::String8{error->GetMessage().c_str()}); 32 } 33 } // namespace 34 35 namespace chromeos_update_engine { 36 37 BinderUpdateEngineAndroidService::BinderUpdateEngineAndroidService( 38 ServiceDelegateAndroidInterface* service_delegate) 39 : service_delegate_(service_delegate) { 40 } 41 42 void BinderUpdateEngineAndroidService::SendStatusUpdate( 43 int64_t /* last_checked_time */, 44 double progress, 45 update_engine::UpdateStatus status, 46 const std::string& /* new_version */, 47 int64_t /* new_size */) { 48 last_status_ = static_cast<int>(status); 49 last_progress_ = progress; 50 for (auto& callback : callbacks_) { 51 callback->onStatusUpdate(last_status_, last_progress_); 52 } 53 } 54 55 void BinderUpdateEngineAndroidService::SendPayloadApplicationComplete( 56 ErrorCode error_code) { 57 for (auto& callback : callbacks_) { 58 callback->onPayloadApplicationComplete(static_cast<int>(error_code)); 59 } 60 } 61 62 Status BinderUpdateEngineAndroidService::bind( 63 const android::sp<IUpdateEngineCallback>& callback, bool* return_value) { 64 callbacks_.emplace_back(callback); 65 66 const android::sp<IBinder>& callback_binder = 67 IUpdateEngineCallback::asBinder(callback); 68 auto binder_wrapper = android::BinderWrapper::Get(); 69 binder_wrapper->RegisterForDeathNotifications( 70 callback_binder, 71 base::Bind( 72 base::IgnoreResult(&BinderUpdateEngineAndroidService::UnbindCallback), 73 base::Unretained(this), 74 base::Unretained(callback_binder.get()))); 75 76 // Send an status update on connection (except when no update sent so far), 77 // since the status update is oneway and we don't need to wait for the 78 // response. 79 if (last_status_ != -1) 80 callback->onStatusUpdate(last_status_, last_progress_); 81 82 *return_value = true; 83 return Status::ok(); 84 } 85 86 Status BinderUpdateEngineAndroidService::unbind( 87 const android::sp<IUpdateEngineCallback>& callback, bool* return_value) { 88 const android::sp<IBinder>& callback_binder = 89 IUpdateEngineCallback::asBinder(callback); 90 auto binder_wrapper = android::BinderWrapper::Get(); 91 binder_wrapper->UnregisterForDeathNotifications(callback_binder); 92 93 *return_value = UnbindCallback(callback_binder.get()); 94 return Status::ok(); 95 } 96 97 Status BinderUpdateEngineAndroidService::applyPayload( 98 const android::String16& url, 99 int64_t payload_offset, 100 int64_t payload_size, 101 const std::vector<android::String16>& header_kv_pairs) { 102 const std::string payload_url{android::String8{url}.string()}; 103 std::vector<std::string> str_headers; 104 str_headers.reserve(header_kv_pairs.size()); 105 for (const auto& header : header_kv_pairs) { 106 str_headers.emplace_back(android::String8{header}.string()); 107 } 108 109 brillo::ErrorPtr error; 110 if (!service_delegate_->ApplyPayload( 111 payload_url, payload_offset, payload_size, str_headers, &error)) { 112 return ErrorPtrToStatus(error); 113 } 114 return Status::ok(); 115 } 116 117 Status BinderUpdateEngineAndroidService::suspend() { 118 brillo::ErrorPtr error; 119 if (!service_delegate_->SuspendUpdate(&error)) 120 return ErrorPtrToStatus(error); 121 return Status::ok(); 122 } 123 124 Status BinderUpdateEngineAndroidService::resume() { 125 brillo::ErrorPtr error; 126 if (!service_delegate_->ResumeUpdate(&error)) 127 return ErrorPtrToStatus(error); 128 return Status::ok(); 129 } 130 131 Status BinderUpdateEngineAndroidService::cancel() { 132 brillo::ErrorPtr error; 133 if (!service_delegate_->CancelUpdate(&error)) 134 return ErrorPtrToStatus(error); 135 return Status::ok(); 136 } 137 138 Status BinderUpdateEngineAndroidService::resetStatus() { 139 brillo::ErrorPtr error; 140 if (!service_delegate_->ResetStatus(&error)) 141 return ErrorPtrToStatus(error); 142 return Status::ok(); 143 } 144 145 bool BinderUpdateEngineAndroidService::UnbindCallback(const IBinder* callback) { 146 auto it = std::find_if( 147 callbacks_.begin(), 148 callbacks_.end(), 149 [&callback](const android::sp<IUpdateEngineCallback>& elem) { 150 return IUpdateEngineCallback::asBinder(elem).get() == callback; 151 }); 152 if (it == callbacks_.end()) { 153 LOG(ERROR) << "Unable to unbind unknown callback."; 154 return false; 155 } 156 callbacks_.erase(it); 157 return true; 158 } 159 160 } // namespace chromeos_update_engine 161
