150 lines
4.1 KiB
C
150 lines
4.1 KiB
C
/*
|
|
* (C) Copyright 2008 Semihalf
|
|
*
|
|
* (C) Copyright 2000-2004
|
|
* DENX Software Engineering
|
|
* Wolfgang Denk, wd@denx.de
|
|
*
|
|
* Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
|
|
* default_image specific code abstracted from mkimage.c
|
|
* some functions added to address abstraction
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "mkimage.h"
|
|
#include <image.h>
|
|
#include <u-boot/crc.h>
|
|
|
|
static image_header_t header;
|
|
|
|
static int image_check_image_types (uint8_t type)
|
|
{
|
|
if ((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT))
|
|
return EXIT_SUCCESS;
|
|
else
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
static int image_check_params (struct mkimage_params *params)
|
|
{
|
|
return ((params->dflag && (params->fflag || params->lflag)) ||
|
|
(params->fflag && (params->dflag || params->lflag)) ||
|
|
(params->lflag && (params->dflag || params->fflag)));
|
|
}
|
|
|
|
static int image_verify_header (unsigned char *ptr, int image_size,
|
|
struct mkimage_params *params)
|
|
{
|
|
uint32_t len;
|
|
const unsigned char *data;
|
|
uint32_t checksum;
|
|
image_header_t header;
|
|
image_header_t *hdr = &header;
|
|
|
|
/*
|
|
* create copy of header so that we can blank out the
|
|
* checksum field for checking - this can't be done
|
|
* on the PROT_READ mapped data.
|
|
*/
|
|
memcpy (hdr, ptr, sizeof(image_header_t));
|
|
|
|
if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) {
|
|
fprintf (stderr,
|
|
"%s: Bad Magic Number: \"%s\" is no valid image\n",
|
|
params->cmdname, params->imagefile);
|
|
return -FDT_ERR_BADMAGIC;
|
|
}
|
|
|
|
data = (const unsigned char *)hdr;
|
|
len = sizeof(image_header_t);
|
|
|
|
checksum = be32_to_cpu(hdr->ih_hcrc);
|
|
hdr->ih_hcrc = cpu_to_be32(0); /* clear for re-calculation */
|
|
|
|
if (crc32 (0, data, len) != checksum) {
|
|
fprintf (stderr,
|
|
"%s: ERROR: \"%s\" has bad header checksum!\n",
|
|
params->cmdname, params->imagefile);
|
|
return -FDT_ERR_BADSTATE;
|
|
}
|
|
|
|
data = (const unsigned char *)ptr + sizeof(image_header_t);
|
|
len = image_size - sizeof(image_header_t) ;
|
|
|
|
checksum = be32_to_cpu(hdr->ih_dcrc);
|
|
if (crc32 (0, data, len) != checksum) {
|
|
fprintf (stderr,
|
|
"%s: ERROR: \"%s\" has corrupted data!\n",
|
|
params->cmdname, params->imagefile);
|
|
return -FDT_ERR_BADSTRUCTURE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void image_set_header (void *ptr, struct stat *sbuf, int ifd,
|
|
struct mkimage_params *params)
|
|
{
|
|
uint32_t checksum;
|
|
|
|
image_header_t * hdr = (image_header_t *)ptr;
|
|
|
|
checksum = crc32 (0,
|
|
(const unsigned char *)(ptr +
|
|
sizeof(image_header_t)),
|
|
sbuf->st_size - sizeof(image_header_t));
|
|
|
|
/* Build new header */
|
|
image_set_magic (hdr, IH_MAGIC);
|
|
image_set_time (hdr, sbuf->st_mtime);
|
|
image_set_size (hdr, sbuf->st_size - sizeof(image_header_t));
|
|
image_set_load (hdr, params->addr);
|
|
image_set_ep (hdr, params->ep);
|
|
image_set_dcrc (hdr, checksum);
|
|
image_set_os (hdr, params->os);
|
|
image_set_arch (hdr, params->arch);
|
|
image_set_type (hdr, params->type);
|
|
image_set_comp (hdr, params->comp);
|
|
|
|
image_set_name (hdr, params->imagename);
|
|
|
|
checksum = crc32 (0, (const unsigned char *)hdr,
|
|
sizeof(image_header_t));
|
|
|
|
image_set_hcrc (hdr, checksum);
|
|
}
|
|
|
|
/*
|
|
* Default image type parameters definition
|
|
*/
|
|
static struct image_type_params defimage_params = {
|
|
.name = "Default Image support",
|
|
.header_size = sizeof(image_header_t),
|
|
.hdr = (void*)&header,
|
|
.check_image_type = image_check_image_types,
|
|
.verify_header = image_verify_header,
|
|
.print_header = image_print_contents,
|
|
.set_header = image_set_header,
|
|
.check_params = image_check_params,
|
|
};
|
|
|
|
void init_default_image_type (void)
|
|
{
|
|
mkimage_register (&defimage_params);
|
|
}
|