1 /* 2 * Copyright (C) 2016 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 <sys/types.h> 18 #include <sys/stat.h> 19 #include <fcntl.h> 20 #include <unistd.h> 21 #include <errno.h> 22 23 #include "device.h" 24 #include "screen_ui.h" 25 26 class Nanohub_Device : public Device 27 { 28 public: 29 Nanohub_Device(ScreenRecoveryUI* ui) : Device(ui) {} 30 bool PostWipeData(); 31 }; 32 33 bool Nanohub_Device::PostWipeData() 34 { 35 int fd; 36 37 fd = open("/sys/class/nanohub/nanohub/erase_shared", O_WRONLY); 38 if (fd < 0) { 39 printf("error: open erase_shared failed: %s\n", strerror(errno)); 40 } else { 41 if (write(fd, "1\n", 2) != 2) { 42 printf("error: write to erase_shared failed: %s\n", strerror(errno)); 43 } else { 44 printf("Successfully erased nanoapps.\n"); 45 } 46 close(fd); 47 } 48 49 // open/write failure caused by permissions issues would persist across 50 // reboots, so always return true to prevent a factory reset failure loop. 51 return true; 52 } 53 54 Device *make_device() 55 { 56 return new Nanohub_Device(new ScreenRecoveryUI); 57 } 58
