1 /* 2 * Copyright (c) 2009-2013, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google, Inc. nor the names of its contributors 15 * may be used to endorse or promote products derived from this 16 * software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 25 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef _FASTBOOTD_ERASE_H 33 #define _FASTBOOTD_ERASE_H 34 35 #include <unistd.h> 36 #include <errno.h> 37 #include <string.h> 38 #include "debug.h" 39 40 int flash_find_entry(const char *, char *, size_t); 41 int flash_erase(int fd); 42 43 static inline int flash_get_partiton(const char *path) { 44 return open(path, O_RDWR); 45 } 46 47 static inline int flash_close(int fd) { 48 return close(fd); 49 } 50 51 int flash_write(int partition, int data, ssize_t size, ssize_t skip); 52 53 static inline ssize_t read_data_once(int fd, char *buffer, ssize_t size) { 54 ssize_t readcount = 0; 55 ssize_t len; 56 57 while ((len = TEMP_FAILURE_RETRY(read(fd, (void *) &buffer[readcount], size - readcount))) > 0) { 58 readcount += len; 59 } 60 if (len < 0) { 61 D(ERR, "Read error:%s", strerror(errno)); 62 return len; 63 } 64 65 return readcount; 66 } 67 68 int flash_validate_certificate(int signed_fd, int *data_fd); 69 70 #endif 71 72
