/*
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* (C) Copyright 2000-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2003
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* Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* Multi Image extract
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*/
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#include <common.h>
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#include <command.h>
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#include <image.h>
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#include <mapmem.h>
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#include <watchdog.h>
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#if defined(CONFIG_BZIP2)
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#include <bzlib.h>
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#endif
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#include <asm/byteorder.h>
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#include <asm/io.h>
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#ifndef CONFIG_SYS_XIMG_LEN
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/* use 8MByte as default max gunzip size */
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#define CONFIG_SYS_XIMG_LEN 0x800000
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#endif
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static int
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do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
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{
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ulong addr = load_addr;
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ulong dest = 0;
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ulong data, len;
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int verify;
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int part = 0;
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#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
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ulong count;
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image_header_t *hdr = NULL;
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#endif
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#if defined(CONFIG_FIT)
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const char *uname = NULL;
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const void* fit_hdr;
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int noffset;
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const void *fit_data;
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size_t fit_len;
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#endif
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#ifdef CONFIG_GZIP
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uint unc_len = CONFIG_SYS_XIMG_LEN;
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#endif
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uint8_t comp;
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verify = env_get_yesno("verify");
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if (argc > 1) {
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addr = simple_strtoul(argv[1], NULL, 16);
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}
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if (argc > 2) {
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part = simple_strtoul(argv[2], NULL, 16);
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#if defined(CONFIG_FIT)
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uname = argv[2];
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#endif
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}
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if (argc > 3) {
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dest = simple_strtoul(argv[3], NULL, 16);
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}
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switch (genimg_get_format((void *)addr)) {
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#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
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case IMAGE_FORMAT_LEGACY:
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printf("## Copying part %d from legacy image "
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"at %08lx ...\n", part, addr);
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hdr = (image_header_t *)addr;
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if (!image_check_magic(hdr)) {
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printf("Bad Magic Number\n");
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return 1;
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}
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if (!image_check_hcrc(hdr)) {
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printf("Bad Header Checksum\n");
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return 1;
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}
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#ifdef DEBUG
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image_print_contents(hdr);
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#endif
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if (!image_check_type(hdr, IH_TYPE_MULTI) &&
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!image_check_type(hdr, IH_TYPE_SCRIPT)) {
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printf("Wrong Image Type for %s command\n",
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cmdtp->name);
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return 1;
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}
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comp = image_get_comp(hdr);
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if ((comp != IH_COMP_NONE) && (argc < 4)) {
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printf("Must specify load address for %s command "
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"with compressed image\n",
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cmdtp->name);
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return 1;
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}
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if (verify) {
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printf(" Verifying Checksum ... ");
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if (!image_check_dcrc(hdr)) {
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printf("Bad Data CRC\n");
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return 1;
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}
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printf("OK\n");
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}
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count = image_multi_count(hdr);
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if (part >= count) {
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printf("Bad Image Part\n");
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return 1;
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}
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image_multi_getimg(hdr, part, &data, &len);
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break;
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#endif
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#if defined(CONFIG_FIT)
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case IMAGE_FORMAT_FIT:
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if (uname == NULL) {
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puts("No FIT subimage unit name\n");
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return 1;
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}
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printf("## Copying '%s' subimage from FIT image "
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"at %08lx ...\n", uname, addr);
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fit_hdr = (const void *)addr;
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if (!fit_check_format(fit_hdr)) {
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puts("Bad FIT image format\n");
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return 1;
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}
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/* get subimage node offset */
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noffset = fit_image_get_node(fit_hdr, uname);
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if (noffset < 0) {
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printf("Can't find '%s' FIT subimage\n", uname);
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return 1;
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}
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if (fit_image_check_comp(fit_hdr, noffset, IH_COMP_NONE)
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&& (argc < 4)) {
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printf("Must specify load address for %s command "
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"with compressed image\n",
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cmdtp->name);
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return 1;
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}
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/* verify integrity */
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if (verify) {
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if (!fit_image_verify(fit_hdr, noffset)) {
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puts("Bad Data Hash\n");
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return 1;
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}
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}
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/* get subimage data address and length */
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if (fit_image_get_data(fit_hdr, noffset,
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&fit_data, &fit_len)) {
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puts("Could not find script subimage data\n");
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return 1;
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}
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if (fit_image_get_comp(fit_hdr, noffset, &comp)) {
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puts("Could not find script subimage "
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"compression type\n");
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return 1;
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}
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data = (ulong)fit_data;
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len = (ulong)fit_len;
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break;
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#endif
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default:
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puts("Invalid image type for imxtract\n");
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return 1;
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}
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if (argc > 3) {
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switch (comp) {
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case IH_COMP_NONE:
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#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
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{
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size_t l = len;
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size_t tail;
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void *to = (void *) dest;
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void *from = (void *)data;
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printf(" Loading part %d ... ", part);
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while (l > 0) {
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tail = (l > CHUNKSZ) ? CHUNKSZ : l;
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WATCHDOG_RESET();
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memmove(to, from, tail);
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to += tail;
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from += tail;
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l -= tail;
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}
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}
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#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
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printf(" Loading part %d ... ", part);
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memmove((char *) dest, (char *)data, len);
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#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
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break;
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#ifdef CONFIG_GZIP
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case IH_COMP_GZIP:
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printf(" Uncompressing part %d ... ", part);
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if (gunzip((void *) dest, unc_len,
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(uchar *) data, &len) != 0) {
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puts("GUNZIP ERROR - image not loaded\n");
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return 1;
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}
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break;
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#endif
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#if defined(CONFIG_BZIP2) && defined(CONFIG_IMAGE_FORMAT_LEGACY)
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case IH_COMP_BZIP2:
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{
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int i;
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printf(" Uncompressing part %d ... ", part);
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/*
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* If we've got less than 4 MB of malloc()
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* space, use slower decompression algorithm
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* which requires at most 2300 KB of memory.
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*/
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i = BZ2_bzBuffToBuffDecompress(
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map_sysmem(ntohl(hdr->ih_load), 0),
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&unc_len, (char *)data, len,
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CONFIG_SYS_MALLOC_LEN < (4096 * 1024),
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0);
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if (i != BZ_OK) {
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printf("BUNZIP2 ERROR %d - "
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"image not loaded\n", i);
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return 1;
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}
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}
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break;
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#endif /* CONFIG_BZIP2 */
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default:
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printf("Unimplemented compression type %d\n", comp);
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return 1;
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}
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puts("OK\n");
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}
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flush_cache(dest, len);
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env_set_hex("fileaddr", data);
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env_set_hex("filesize", len);
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return 0;
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}
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#ifdef CONFIG_SYS_LONGHELP
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static char imgextract_help_text[] =
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"addr part [dest]\n"
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" - extract <part> from legacy image at <addr> and copy to <dest>"
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#if defined(CONFIG_FIT)
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"\n"
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"addr uname [dest]\n"
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" - extract <uname> subimage from FIT image at <addr> and copy to <dest>"
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#endif
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"";
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#endif
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U_BOOT_CMD(
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imxtract, 4, 1, do_imgextract,
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"extract a part of a multi-image", imgextract_help_text
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);
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