2009-08-19 20:06:46 +08:00
|
|
|
/*
|
|
|
|
* (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.
|
|
|
|
*
|
2013-07-08 15:37:19 +08:00
|
|
|
* SPDX-License-Identifier: GPL-2.0+
|
2009-08-19 20:06:46 +08:00
|
|
|
*/
|
|
|
|
|
2013-12-02 03:43:10 +08:00
|
|
|
#include "imagetool.h"
|
2014-03-03 19:19:29 +08:00
|
|
|
#include "fit_common.h"
|
2009-08-19 20:06:46 +08:00
|
|
|
#include "mkimage.h"
|
|
|
|
#include <image.h>
|
|
|
|
#include <u-boot/crc.h>
|
|
|
|
|
|
|
|
static image_header_t header;
|
|
|
|
|
2014-06-03 12:04:53 +08:00
|
|
|
static int fit_add_file_data(struct image_tool_params *params, size_t size_inc,
|
|
|
|
const char *tmpfile)
|
|
|
|
{
|
|
|
|
int tfd, destfd = 0;
|
|
|
|
void *dest_blob = NULL;
|
|
|
|
off_t destfd_size = 0;
|
|
|
|
struct stat sbuf;
|
|
|
|
void *ptr;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
tfd = mmap_fdt(params->cmdname, tmpfile, size_inc, &ptr, &sbuf, true);
|
|
|
|
if (tfd < 0)
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
if (params->keydest) {
|
|
|
|
struct stat dest_sbuf;
|
|
|
|
|
|
|
|
destfd = mmap_fdt(params->cmdname, params->keydest, size_inc,
|
|
|
|
&dest_blob, &dest_sbuf, false);
|
|
|
|
if (destfd < 0) {
|
|
|
|
ret = -EIO;
|
|
|
|
goto err_keydest;
|
|
|
|
}
|
|
|
|
destfd_size = dest_sbuf.st_size;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* for first image creation, add a timestamp at offset 0 i.e., root */
|
|
|
|
if (params->datafile)
|
|
|
|
ret = fit_set_timestamp(ptr, 0, sbuf.st_mtime);
|
|
|
|
|
|
|
|
if (!ret) {
|
|
|
|
ret = fit_add_verification_data(params->keydir, dest_blob, ptr,
|
|
|
|
params->comment,
|
|
|
|
params->require_keys);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dest_blob) {
|
|
|
|
munmap(dest_blob, destfd_size);
|
|
|
|
close(destfd);
|
|
|
|
}
|
|
|
|
|
|
|
|
err_keydest:
|
|
|
|
munmap(ptr, sbuf.st_size);
|
|
|
|
close(tfd);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2009-08-19 20:06:46 +08:00
|
|
|
/**
|
|
|
|
* fit_handle_file - main FIT file processing function
|
|
|
|
*
|
|
|
|
* fit_handle_file() runs dtc to convert .its to .itb, includes
|
|
|
|
* binary data, updates timestamp property and calculates hashes.
|
|
|
|
*
|
|
|
|
* datafile - .its file
|
|
|
|
* imagefile - .itb file
|
|
|
|
*
|
|
|
|
* returns:
|
|
|
|
* only on success, otherwise calls exit (EXIT_FAILURE);
|
|
|
|
*/
|
2013-12-02 03:43:10 +08:00
|
|
|
static int fit_handle_file(struct image_tool_params *params)
|
2009-08-19 20:06:46 +08:00
|
|
|
{
|
|
|
|
char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
|
|
|
|
char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
|
2014-06-03 12:04:53 +08:00
|
|
|
size_t size_inc;
|
|
|
|
int ret;
|
2009-08-19 20:06:46 +08:00
|
|
|
|
|
|
|
/* Flattened Image Tree (FIT) format handling */
|
|
|
|
debug ("FIT format handling\n");
|
|
|
|
|
|
|
|
/* call dtc to include binary properties into the tmp file */
|
|
|
|
if (strlen (params->imagefile) +
|
|
|
|
strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) {
|
|
|
|
fprintf (stderr, "%s: Image file name (%s) too long, "
|
|
|
|
"can't create tmpfile",
|
|
|
|
params->imagefile, params->cmdname);
|
|
|
|
return (EXIT_FAILURE);
|
|
|
|
}
|
|
|
|
sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
|
|
|
|
|
2013-06-14 06:10:05 +08:00
|
|
|
/* We either compile the source file, or use the existing FIT image */
|
|
|
|
if (params->datafile) {
|
|
|
|
/* dtc -I dts -O dtb -p 500 datafile > tmpfile */
|
|
|
|
snprintf(cmd, sizeof(cmd), "%s %s %s > %s",
|
|
|
|
MKIMAGE_DTC, params->dtc, params->datafile, tmpfile);
|
|
|
|
debug("Trying to execute \"%s\"\n", cmd);
|
|
|
|
} else {
|
|
|
|
snprintf(cmd, sizeof(cmd), "cp %s %s",
|
|
|
|
params->imagefile, tmpfile);
|
|
|
|
}
|
2009-08-19 20:06:46 +08:00
|
|
|
if (system (cmd) == -1) {
|
|
|
|
fprintf (stderr, "%s: system(%s) failed: %s\n",
|
|
|
|
params->cmdname, cmd, strerror(errno));
|
2013-05-08 16:05:57 +08:00
|
|
|
goto err_system;
|
2009-08-19 20:06:46 +08:00
|
|
|
}
|
|
|
|
|
2014-06-03 12:04:53 +08:00
|
|
|
/*
|
|
|
|
* Set hashes for images in the blob. Unfortunately we may need more
|
|
|
|
* space in either FDT, so keep trying until we succeed.
|
|
|
|
*
|
|
|
|
* Note: this is pretty inefficient for signing, since we must
|
|
|
|
* calculate the signature every time. It would be better to calculate
|
|
|
|
* all the data and then store it in a separate step. However, this
|
|
|
|
* would be considerably more complex to implement. Generally a few
|
|
|
|
* steps of this loop is enough to sign with several keys.
|
|
|
|
*/
|
|
|
|
for (size_inc = 0; size_inc < 64 * 1024; size_inc += 1024) {
|
|
|
|
ret = fit_add_file_data(params, size_inc, tmpfile);
|
|
|
|
if (!ret || ret != -ENOSPC)
|
|
|
|
break;
|
2013-06-14 06:10:04 +08:00
|
|
|
}
|
|
|
|
|
2014-06-03 12:04:53 +08:00
|
|
|
if (ret) {
|
2013-06-14 06:10:07 +08:00
|
|
|
fprintf(stderr, "%s Can't add hashes to FIT blob\n",
|
|
|
|
params->cmdname);
|
2014-06-03 12:04:53 +08:00
|
|
|
goto err_system;
|
2013-06-14 06:10:04 +08:00
|
|
|
}
|
2009-08-19 20:06:46 +08:00
|
|
|
|
|
|
|
if (rename (tmpfile, params->imagefile) == -1) {
|
|
|
|
fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
|
|
|
|
params->cmdname, tmpfile, params->imagefile,
|
|
|
|
strerror (errno));
|
|
|
|
unlink (tmpfile);
|
|
|
|
unlink (params->imagefile);
|
2014-06-03 12:04:53 +08:00
|
|
|
return EXIT_FAILURE;
|
2009-08-19 20:06:46 +08:00
|
|
|
}
|
2014-06-03 12:04:53 +08:00
|
|
|
return EXIT_SUCCESS;
|
2013-05-08 16:05:57 +08:00
|
|
|
|
|
|
|
err_system:
|
|
|
|
unlink(tmpfile);
|
|
|
|
return -1;
|
2009-08-19 20:06:46 +08:00
|
|
|
}
|
|
|
|
|
2015-01-15 12:54:42 +08:00
|
|
|
/**
|
|
|
|
* fit_image_extract - extract a FIT component image
|
|
|
|
* @fit: pointer to the FIT format image header
|
|
|
|
* @image_noffset: offset of the component image node
|
|
|
|
* @file_name: name of the file to store the FIT sub-image
|
|
|
|
*
|
|
|
|
* returns:
|
|
|
|
* zero in case of success or a negative value if fail.
|
|
|
|
*/
|
|
|
|
static int fit_image_extract(
|
|
|
|
const void *fit,
|
|
|
|
int image_noffset,
|
|
|
|
const char *file_name)
|
|
|
|
{
|
|
|
|
const void *file_data;
|
|
|
|
size_t file_size = 0;
|
|
|
|
|
|
|
|
/* get the "data" property of component at offset "image_noffset" */
|
|
|
|
fit_image_get_data(fit, image_noffset, &file_data, &file_size);
|
|
|
|
|
|
|
|
/* save the "file_data" into the file specified by "file_name" */
|
|
|
|
return imagetool_save_subimage(file_name, (ulong) file_data, file_size);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* fit_extract_contents - retrieve a sub-image component from the FIT image
|
|
|
|
* @ptr: pointer to the FIT format image header
|
|
|
|
* @params: command line parameters
|
|
|
|
*
|
|
|
|
* returns:
|
|
|
|
* zero in case of success or a negative value if fail.
|
|
|
|
*/
|
|
|
|
static int fit_extract_contents(void *ptr, struct image_tool_params *params)
|
|
|
|
{
|
|
|
|
int images_noffset;
|
|
|
|
int noffset;
|
|
|
|
int ndepth;
|
|
|
|
const void *fit = ptr;
|
|
|
|
int count = 0;
|
|
|
|
const char *p;
|
|
|
|
|
|
|
|
/* Indent string is defined in header image.h */
|
|
|
|
p = IMAGE_INDENT_STRING;
|
|
|
|
|
|
|
|
if (!fit_check_format(fit)) {
|
|
|
|
printf("Bad FIT image format\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Find images parent node offset */
|
|
|
|
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
|
|
|
|
if (images_noffset < 0) {
|
|
|
|
printf("Can't find images parent node '%s' (%s)\n",
|
|
|
|
FIT_IMAGES_PATH, fdt_strerror(images_noffset));
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Avoid any overrun */
|
|
|
|
count = fit_get_subimage_count(fit, images_noffset);
|
|
|
|
if ((params->pflag < 0) || (count <= params->pflag)) {
|
|
|
|
printf("No such component at '%d'\n", params->pflag);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Process its subnodes, extract the desired component from image */
|
|
|
|
for (ndepth = 0, count = 0,
|
|
|
|
noffset = fdt_next_node(fit, images_noffset, &ndepth);
|
|
|
|
(noffset >= 0) && (ndepth > 0);
|
|
|
|
noffset = fdt_next_node(fit, noffset, &ndepth)) {
|
|
|
|
if (ndepth == 1) {
|
|
|
|
/*
|
|
|
|
* Direct child node of the images parent node,
|
|
|
|
* i.e. component image node.
|
|
|
|
*/
|
|
|
|
if (params->pflag == count) {
|
|
|
|
printf("Extracted:\n%s Image %u (%s)\n", p,
|
|
|
|
count, fit_get_name(fit, noffset, NULL));
|
|
|
|
|
|
|
|
fit_image_print(fit, noffset, p);
|
|
|
|
|
|
|
|
return fit_image_extract(fit, noffset,
|
|
|
|
params->outfile);
|
|
|
|
}
|
|
|
|
|
|
|
|
count++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-12-02 03:43:10 +08:00
|
|
|
static int fit_check_params(struct image_tool_params *params)
|
2009-08-19 20:06:46 +08:00
|
|
|
{
|
|
|
|
return ((params->dflag && (params->fflag || params->lflag)) ||
|
|
|
|
(params->fflag && (params->dflag || params->lflag)) ||
|
|
|
|
(params->lflag && (params->dflag || params->fflag)));
|
|
|
|
}
|
|
|
|
|
2015-01-15 12:48:07 +08:00
|
|
|
U_BOOT_IMAGE_TYPE(
|
|
|
|
fitimage,
|
|
|
|
"FIT Image support",
|
|
|
|
sizeof(image_header_t),
|
|
|
|
(void *)&header,
|
|
|
|
fit_check_params,
|
|
|
|
fit_verify_header,
|
|
|
|
fit_print_contents,
|
|
|
|
NULL,
|
2015-01-15 12:54:42 +08:00
|
|
|
fit_extract_contents,
|
2015-01-15 12:48:07 +08:00
|
|
|
fit_check_image_types,
|
|
|
|
fit_handle_file,
|
|
|
|
NULL /* FIT images use DTB header */
|
|
|
|
);
|