145 lines
3.3 KiB
C
145 lines
3.3 KiB
C
/*
|
|
* (C) Copyright 2000-2004
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* (C) Copyright 2003
|
|
* Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#if defined(CONFIG_CMD_XIMG)
|
|
|
|
/*
|
|
* Multi Image extract
|
|
*/
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <image.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
int
|
|
do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
|
|
{
|
|
ulong addr = load_addr, dest = 0;
|
|
ulong data, len, checksum;
|
|
ulong *len_ptr;
|
|
int i, verify, part = 0;
|
|
char pbuf[10], *s;
|
|
image_header_t header;
|
|
|
|
s = getenv("verify");
|
|
verify = (s && (*s == 'n')) ? 0 : 1;
|
|
|
|
if (argc > 1) {
|
|
addr = simple_strtoul(argv[1], NULL, 16);
|
|
}
|
|
if (argc > 2) {
|
|
part = simple_strtoul(argv[2], NULL, 16);
|
|
}
|
|
if (argc > 3) {
|
|
dest = simple_strtoul(argv[3], NULL, 16);
|
|
}
|
|
|
|
printf("## Copying from image at %08lx ...\n", addr);
|
|
|
|
/* Copy header so we can blank CRC field for re-calculation */
|
|
memmove(&header, (char *) addr, sizeof (image_header_t));
|
|
|
|
if (ntohl(header.ih_magic) != IH_MAGIC) {
|
|
printf("Bad Magic Number\n");
|
|
return 1;
|
|
}
|
|
|
|
data = (ulong) & header;
|
|
len = sizeof (image_header_t);
|
|
|
|
checksum = ntohl(header.ih_hcrc);
|
|
header.ih_hcrc = 0;
|
|
|
|
if (crc32(0, (char *) data, len) != checksum) {
|
|
printf("Bad Header Checksum\n");
|
|
return 1;
|
|
}
|
|
#ifdef DEBUG
|
|
print_image_hdr((image_header_t *) addr);
|
|
#endif
|
|
|
|
data = addr + sizeof (image_header_t);
|
|
len = ntohl(header.ih_size);
|
|
|
|
if (header.ih_type != IH_TYPE_MULTI) {
|
|
printf("Wrong Image Type for %s command\n", cmdtp->name);
|
|
return 1;
|
|
}
|
|
|
|
if (header.ih_comp != IH_COMP_NONE) {
|
|
printf("Wrong Compression Type for %s command\n", cmdtp->name);
|
|
return 1;
|
|
}
|
|
|
|
if (verify) {
|
|
printf(" Verifying Checksum ... ");
|
|
if (crc32(0, (char *) data, len) != ntohl(header.ih_dcrc)) {
|
|
printf("Bad Data CRC\n");
|
|
return 1;
|
|
}
|
|
printf("OK\n");
|
|
}
|
|
|
|
len_ptr = (ulong *) data;
|
|
|
|
data += 4; /* terminator */
|
|
for (i = 0; len_ptr[i]; ++i) {
|
|
data += 4;
|
|
if (argc > 2 && part > i) {
|
|
u_long tail;
|
|
len = ntohl(len_ptr[i]);
|
|
tail = len % 4;
|
|
data += len;
|
|
if (tail) {
|
|
data += 4 - tail;
|
|
}
|
|
}
|
|
}
|
|
if (argc > 2 && part >= i) {
|
|
printf("Bad Image Part\n");
|
|
return 1;
|
|
}
|
|
len = ntohl(len_ptr[part]);
|
|
|
|
if (argc > 3) {
|
|
memcpy((char *) dest, (char *) data, len);
|
|
}
|
|
|
|
sprintf(pbuf, "%8lx", data);
|
|
setenv("fileaddr", pbuf);
|
|
sprintf(pbuf, "%8lx", len);
|
|
setenv("filesize", pbuf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_CMD(imxtract, 4, 1, do_imgextract,
|
|
"imxtract- extract a part of a multi-image\n",
|
|
"addr part [dest]\n"
|
|
" - extract <part> from image at <addr> and copy to <dest>\n");
|
|
|
|
#endif
|