mirror of
https://github.com/AsahiLinux/u-boot
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2d2384bbaf
At present mkimage displays the node information but it is not clear what signing action was taken. Add a message that shows it. For now it only supports showing a single signing action, since that is the common case. Sample: Signature written to 'sha1-basic/test.fit', node '/configurations/conf-1/signature' Public key written to 'sha1-basic/sandbox-u-boot.dtb', node '/signature/key-dev' Signed-off-by: Simon Glass <sjg@chromium.org>
190 lines
3.7 KiB
C
190 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2014
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* DENX Software Engineering
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* Heiko Schocher <hs@denx.de>
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*
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* (C) Copyright 2008 Semihalf
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*
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* (C) Copyright 2000-2004
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* DENX Software Engineering
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* Wolfgang Denk, wd@denx.de
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*
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* Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
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* FIT image specific code abstracted from mkimage.c
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* some functions added to address abstraction
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*
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* All rights reserved.
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*/
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#include "imagetool.h"
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#include "mkimage.h"
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#include "fit_common.h"
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#include <image.h>
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#include <u-boot/crc.h>
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int fit_verify_header(unsigned char *ptr, int image_size,
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struct image_tool_params *params)
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{
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int ret;
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if (fdt_check_header(ptr) != EXIT_SUCCESS)
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return EXIT_FAILURE;
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ret = fit_check_format(ptr, IMAGE_SIZE_INVAL);
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if (ret) {
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if (ret != -EADDRNOTAVAIL)
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return EXIT_FAILURE;
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fprintf(stderr, "Image contains unit addresses @, this will break signing\n");
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}
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return EXIT_SUCCESS;
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}
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int fit_check_image_types(uint8_t type)
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{
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if (type == IH_TYPE_FLATDT)
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return EXIT_SUCCESS;
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else
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return EXIT_FAILURE;
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}
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int mmap_fdt(const char *cmdname, const char *fname, size_t size_inc,
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void **blobp, struct stat *sbuf, bool delete_on_error,
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bool read_only)
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{
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void *ptr;
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int fd;
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/* Load FIT blob into memory (we need to write hashes/signatures) */
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fd = open(fname, (read_only ? O_RDONLY : O_RDWR) | O_BINARY);
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if (fd < 0) {
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fprintf(stderr, "%s: Can't open %s: %s\n",
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cmdname, fname, strerror(errno));
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goto err;
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}
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if (fstat(fd, sbuf) < 0) {
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fprintf(stderr, "%s: Can't stat %s: %s\n",
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cmdname, fname, strerror(errno));
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goto err;
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}
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if (size_inc) {
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sbuf->st_size += size_inc;
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if (ftruncate(fd, sbuf->st_size)) {
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fprintf(stderr, "%s: Can't expand %s: %s\n",
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cmdname, fname, strerror(errno));
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goto err;
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}
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}
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errno = 0;
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ptr = mmap(0, sbuf->st_size,
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(read_only ? PROT_READ : PROT_READ | PROT_WRITE), MAP_SHARED,
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fd, 0);
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if ((ptr == MAP_FAILED) || (errno != 0)) {
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fprintf(stderr, "%s: Can't read %s: %s\n",
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cmdname, fname, strerror(errno));
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goto err;
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}
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/* check if ptr has a valid blob */
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if (fdt_check_header(ptr)) {
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fprintf(stderr, "%s: Invalid FIT blob\n", cmdname);
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goto err;
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}
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/* expand if needed */
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if (size_inc) {
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int ret;
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ret = fdt_open_into(ptr, ptr, sbuf->st_size);
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if (ret) {
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fprintf(stderr, "%s: Cannot expand FDT: %s\n",
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cmdname, fdt_strerror(ret));
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goto err;
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}
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}
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*blobp = ptr;
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return fd;
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err:
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if (fd >= 0)
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close(fd);
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if (delete_on_error)
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unlink(fname);
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return -1;
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}
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int copyfile(const char *src, const char *dst)
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{
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int fd_src = -1, fd_dst = -1;
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void *buf = NULL;
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ssize_t size;
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size_t count;
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int ret = -1;
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fd_src = open(src, O_RDONLY);
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if (fd_src < 0) {
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printf("Can't open file %s (%s)\n", src, strerror(errno));
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goto out;
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}
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fd_dst = open(dst, O_WRONLY | O_CREAT | O_TRUNC, 0666);
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if (fd_dst < 0) {
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printf("Can't open file %s (%s)\n", dst, strerror(errno));
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goto out;
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}
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buf = calloc(1, 512);
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if (!buf) {
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printf("Can't allocate buffer to copy file\n");
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goto out;
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}
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while (1) {
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size = read(fd_src, buf, 512);
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if (size < 0) {
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printf("Can't read file %s\n", src);
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goto out;
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}
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if (!size)
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break;
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count = size;
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size = write(fd_dst, buf, count);
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if (size < 0) {
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printf("Can't write file %s\n", dst);
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goto out;
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}
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}
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ret = 0;
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out:
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if (fd_src >= 0)
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close(fd_src);
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if (fd_dst >= 0)
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close(fd_dst);
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if (buf)
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free(buf);
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return ret;
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}
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void summary_show(struct image_summary *summary, const char *imagefile,
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const char *keydest)
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{
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if (summary->sig_offset) {
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printf("Signature written to '%s', node '%s'\n", imagefile,
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summary->sig_path);
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if (keydest) {
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printf("Public key written to '%s', node '%s'\n",
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keydest, summary->keydest_path);
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}
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}
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}
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