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
flash_get_partiton(const char * path)43 static inline int flash_get_partiton(const char *path) {
44 return open(path, O_RDWR);
45 }
46
flash_close(int fd)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
read_data_once(int fd,char * buffer,ssize_t size)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