123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190 |
- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2014
- * DENX Software Engineering
- * Heiko Schocher <hs@denx.de>
- *
- * (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.
- */
- #include "imagetool.h"
- #include "mkimage.h"
- #include "fit_common.h"
- #include <image.h>
- #include <u-boot/crc.h>
- int fit_verify_header(unsigned char *ptr, int image_size,
- struct image_tool_params *params)
- {
- int ret;
- if (fdt_check_header(ptr) != EXIT_SUCCESS)
- return EXIT_FAILURE;
- ret = fit_check_format(ptr, IMAGE_SIZE_INVAL);
- if (ret) {
- if (ret != -EADDRNOTAVAIL)
- return EXIT_FAILURE;
- fprintf(stderr, "Image contains unit addresses @, this will break signing\n");
- }
- return EXIT_SUCCESS;
- }
- int fit_check_image_types(uint8_t type)
- {
- if (type == IH_TYPE_FLATDT)
- return EXIT_SUCCESS;
- else
- return EXIT_FAILURE;
- }
- int mmap_fdt(const char *cmdname, const char *fname, size_t size_inc,
- void **blobp, struct stat *sbuf, bool delete_on_error,
- bool read_only)
- {
- void *ptr;
- int fd;
- /* Load FIT blob into memory (we need to write hashes/signatures) */
- fd = open(fname, (read_only ? O_RDONLY : O_RDWR) | O_BINARY);
- if (fd < 0) {
- fprintf(stderr, "%s: Can't open %s: %s\n",
- cmdname, fname, strerror(errno));
- goto err;
- }
- if (fstat(fd, sbuf) < 0) {
- fprintf(stderr, "%s: Can't stat %s: %s\n",
- cmdname, fname, strerror(errno));
- goto err;
- }
- if (size_inc) {
- sbuf->st_size += size_inc;
- if (ftruncate(fd, sbuf->st_size)) {
- fprintf(stderr, "%s: Can't expand %s: %s\n",
- cmdname, fname, strerror(errno));
- goto err;
- }
- }
- errno = 0;
- ptr = mmap(0, sbuf->st_size,
- (read_only ? PROT_READ : PROT_READ | PROT_WRITE), MAP_SHARED,
- fd, 0);
- if ((ptr == MAP_FAILED) || (errno != 0)) {
- fprintf(stderr, "%s: Can't read %s: %s\n",
- cmdname, fname, strerror(errno));
- goto err;
- }
- /* check if ptr has a valid blob */
- if (fdt_check_header(ptr)) {
- fprintf(stderr, "%s: Invalid FIT blob\n", cmdname);
- goto err;
- }
- /* expand if needed */
- if (size_inc) {
- int ret;
- ret = fdt_open_into(ptr, ptr, sbuf->st_size);
- if (ret) {
- fprintf(stderr, "%s: Cannot expand FDT: %s\n",
- cmdname, fdt_strerror(ret));
- goto err;
- }
- }
- *blobp = ptr;
- return fd;
- err:
- if (fd >= 0)
- close(fd);
- if (delete_on_error)
- unlink(fname);
- return -1;
- }
- int copyfile(const char *src, const char *dst)
- {
- int fd_src = -1, fd_dst = -1;
- void *buf = NULL;
- ssize_t size;
- size_t count;
- int ret = -1;
- fd_src = open(src, O_RDONLY);
- if (fd_src < 0) {
- printf("Can't open file %s (%s)\n", src, strerror(errno));
- goto out;
- }
- fd_dst = open(dst, O_WRONLY | O_CREAT | O_TRUNC, 0666);
- if (fd_dst < 0) {
- printf("Can't open file %s (%s)\n", dst, strerror(errno));
- goto out;
- }
- buf = calloc(1, 512);
- if (!buf) {
- printf("Can't allocate buffer to copy file\n");
- goto out;
- }
- while (1) {
- size = read(fd_src, buf, 512);
- if (size < 0) {
- printf("Can't read file %s\n", src);
- goto out;
- }
- if (!size)
- break;
- count = size;
- size = write(fd_dst, buf, count);
- if (size < 0) {
- printf("Can't write file %s\n", dst);
- goto out;
- }
- }
- ret = 0;
- out:
- if (fd_src >= 0)
- close(fd_src);
- if (fd_dst >= 0)
- close(fd_dst);
- if (buf)
- free(buf);
- return ret;
- }
- void summary_show(struct image_summary *summary, const char *imagefile,
- const char *keydest)
- {
- if (summary->sig_offset) {
- printf("Signature written to '%s', node '%s'\n", imagefile,
- summary->sig_path);
- if (keydest) {
- printf("Public key written to '%s', node '%s'\n",
- keydest, summary->keydest_path);
- }
- }
- }
|