platform_system_core/fastbootd/commands/flash.h

72 lines
2.4 KiB
C

/*
* Copyright (c) 2009-2013, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google, Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _FASTBOOTD_ERASE_H
#define _FASTBOOTD_ERASE_H
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include "debug.h"
int flash_find_entry(const char *, char *, size_t);
int flash_erase(int fd);
static inline int flash_get_partiton(const char *path) {
return open(path, O_RDWR);
}
static inline int flash_close(int fd) {
return close(fd);
}
int flash_write(int partition, int data, ssize_t size, ssize_t skip);
static inline ssize_t read_data_once(int fd, char *buffer, ssize_t size) {
ssize_t readcount = 0;
ssize_t len;
while ((len = TEMP_FAILURE_RETRY(read(fd, (void *) &buffer[readcount], size - readcount))) > 0) {
readcount += len;
}
if (len < 0) {
D(ERR, "Read error:%s", strerror(errno));
return len;
}
return readcount;
}
int flash_validate_certificate(int signed_fd, int *data_fd);
#endif