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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2014
* DENX Software Engineering
* Heiko Schocher <hs@denx.de>
*
* (C) Copyright 2008 Semihalf
*
* (C) Copyright 2000-2004
* DENX Software Engineering
* Wolfgang Denk, wd@denx.de
*
* Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
* FIT image specific code abstracted from mkimage.c
* some functions added to address abstraction
*
* All rights reserved.
*/
#include "imagetool.h"
#include "mkimage.h"
#include "fit_common.h"
#include <image.h>
#include <u-boot/crc.h>
int fit_verify_header(unsigned char *ptr, int image_size,
struct image_tool_params *params)
{
int ret;
if (fdt_check_header(ptr) != EXIT_SUCCESS)
return EXIT_FAILURE;
ret = fit_check_format(ptr, IMAGE_SIZE_INVAL);
if (ret) {
if (ret != -EADDRNOTAVAIL)
return EXIT_FAILURE;
fprintf(stderr, "Image contains unit addresses @, this will break signing\n");
}
return EXIT_SUCCESS;
}
int fit_check_image_types(uint8_t type)
{
if (type == IH_TYPE_FLATDT)
return EXIT_SUCCESS;
else
return EXIT_FAILURE;
}
int mmap_fdt(const char *cmdname, const char *fname, size_t size_inc,
void **blobp, struct stat *sbuf, bool delete_on_error,
bool read_only)
{
void *ptr;
int fd;
/* Load FIT blob into memory (we need to write hashes/signatures) */
fd = open(fname, (read_only ? O_RDONLY : O_RDWR) | O_BINARY);
if (fd < 0) {
fprintf(stderr, "%s: Can't open %s: %s\n",
cmdname, fname, strerror(errno));
goto err;
}
if (fstat(fd, sbuf) < 0) {
fprintf(stderr, "%s: Can't stat %s: %s\n",
cmdname, fname, strerror(errno));
goto err;
}
if (size_inc) {
sbuf->st_size += size_inc;
if (ftruncate(fd, sbuf->st_size)) {
fprintf(stderr, "%s: Can't expand %s: %s\n",
cmdname, fname, strerror(errno));
goto err;
}
}
errno = 0;
ptr = mmap(0, sbuf->st_size,
(read_only ? PROT_READ : PROT_READ | PROT_WRITE), MAP_SHARED,
fd, 0);
if ((ptr == MAP_FAILED) || (errno != 0)) {
fprintf(stderr, "%s: Can't read %s: %s\n",
cmdname, fname, strerror(errno));
goto err;
}
/* check if ptr has a valid blob */
if (fdt_check_header(ptr)) {
fprintf(stderr, "%s: Invalid FIT blob\n", cmdname);
goto err;
}
/* expand if needed */
if (size_inc) {
int ret;
ret = fdt_open_into(ptr, ptr, sbuf->st_size);
if (ret) {
fprintf(stderr, "%s: Cannot expand FDT: %s\n",
cmdname, fdt_strerror(ret));
goto err;
}
}
*blobp = ptr;
return fd;
err:
if (fd >= 0)
close(fd);
if (delete_on_error)
unlink(fname);
return -1;
}
int copyfile(const char *src, const char *dst)
{
int fd_src = -1, fd_dst = -1;
void *buf = NULL;
ssize_t size;
size_t count;
int ret = -1;
fd_src = open(src, O_RDONLY);
if (fd_src < 0) {
printf("Can't open file %s (%s)\n", src, strerror(errno));
goto out;
}
fd_dst = open(dst, O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd_dst < 0) {
printf("Can't open file %s (%s)\n", dst, strerror(errno));
goto out;
}
buf = calloc(1, 512);
if (!buf) {
printf("Can't allocate buffer to copy file\n");
goto out;
}
while (1) {
size = read(fd_src, buf, 512);
if (size < 0) {
printf("Can't read file %s\n", src);
goto out;
}
if (!size)
break;
count = size;
size = write(fd_dst, buf, count);
if (size < 0) {
printf("Can't write file %s\n", dst);
goto out;
}
}
ret = 0;
out:
if (fd_src >= 0)
close(fd_src);
if (fd_dst >= 0)
close(fd_dst);
if (buf)
free(buf);
return ret;
}
void summary_show(struct image_summary *summary, const char *imagefile,
const char *keydest)
{
if (summary->sig_offset) {
printf("Signature written to '%s', node '%s'\n", imagefile,
summary->sig_path);
if (keydest) {
printf("Public key written to '%s', node '%s'\n",
keydest, summary->keydest_path);
}
}
}
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