aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/tools/fit_image.c
diff options
context:
space:
mode:
Diffstat (limited to 'roms/u-boot/tools/fit_image.c')
-rw-r--r--roms/u-boot/tools/fit_image.c956
1 files changed, 956 insertions, 0 deletions
diff --git a/roms/u-boot/tools/fit_image.c b/roms/u-boot/tools/fit_image.c
new file mode 100644
index 000000000..ae30f8078
--- /dev/null
+++ b/roms/u-boot/tools/fit_image.c
@@ -0,0 +1,956 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (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 "fit_common.h"
+#include "mkimage.h"
+#include <image.h>
+#include <string.h>
+#include <stdarg.h>
+#include <version.h>
+#include <u-boot/crc.h>
+
+static image_header_t header;
+
+static int fit_add_file_data(struct image_tool_params *params, size_t size_inc,
+ const char *tmpfile)
+{
+ int tfd, destfd = 0;
+ void *dest_blob = NULL;
+ off_t destfd_size = 0;
+ struct stat sbuf;
+ void *ptr;
+ int ret = 0;
+
+ tfd = mmap_fdt(params->cmdname, tmpfile, size_inc, &ptr, &sbuf, true,
+ false);
+ if (tfd < 0)
+ return -EIO;
+
+ if (params->keydest) {
+ struct stat dest_sbuf;
+
+ destfd = mmap_fdt(params->cmdname, params->keydest, size_inc,
+ &dest_blob, &dest_sbuf, false,
+ false);
+ if (destfd < 0) {
+ ret = -EIO;
+ goto err_keydest;
+ }
+ destfd_size = dest_sbuf.st_size;
+ }
+
+ /* for first image creation, add a timestamp at offset 0 i.e., root */
+ if (params->datafile || params->reset_timestamp) {
+ time_t time = imagetool_get_source_date(params->cmdname,
+ sbuf.st_mtime);
+ ret = fit_set_timestamp(ptr, 0, time);
+ }
+
+ if (!ret) {
+ ret = fit_cipher_data(params->keydir, dest_blob, ptr,
+ params->comment,
+ params->require_keys,
+ params->engine_id,
+ params->cmdname);
+ }
+
+ if (!ret) {
+ ret = fit_add_verification_data(params->keydir,
+ params->keyfile, dest_blob, ptr,
+ params->comment,
+ params->require_keys,
+ params->engine_id,
+ params->cmdname);
+ }
+
+ if (dest_blob) {
+ munmap(dest_blob, destfd_size);
+ close(destfd);
+ }
+
+err_keydest:
+ munmap(ptr, sbuf.st_size);
+ close(tfd);
+ return ret;
+}
+
+/**
+ * fit_calc_size() - Calculate the approximate size of the FIT we will generate
+ */
+static int fit_calc_size(struct image_tool_params *params)
+{
+ struct content_info *cont;
+ int size, total_size;
+
+ size = imagetool_get_filesize(params, params->datafile);
+ if (size < 0)
+ return -1;
+ total_size = size;
+
+ if (params->fit_ramdisk) {
+ size = imagetool_get_filesize(params, params->fit_ramdisk);
+ if (size < 0)
+ return -1;
+ total_size += size;
+ }
+
+ for (cont = params->content_head; cont; cont = cont->next) {
+ size = imagetool_get_filesize(params, cont->fname);
+ if (size < 0)
+ return -1;
+
+ /* Add space for properties and hash node */
+ total_size += size + 300;
+ }
+
+ /* Add plenty of space for headers, properties, nodes, etc. */
+ total_size += 4096;
+
+ return total_size;
+}
+
+static int fdt_property_file(struct image_tool_params *params,
+ void *fdt, const char *name, const char *fname)
+{
+ struct stat sbuf;
+ void *ptr;
+ int ret;
+ int fd;
+
+ fd = open(fname, O_RDWR | O_BINARY);
+ if (fd < 0) {
+ fprintf(stderr, "%s: Can't open %s: %s\n",
+ params->cmdname, fname, strerror(errno));
+ return -1;
+ }
+
+ if (fstat(fd, &sbuf) < 0) {
+ fprintf(stderr, "%s: Can't stat %s: %s\n",
+ params->cmdname, fname, strerror(errno));
+ goto err;
+ }
+
+ ret = fdt_property_placeholder(fdt, "data", sbuf.st_size, &ptr);
+ if (ret)
+ goto err;
+ ret = read(fd, ptr, sbuf.st_size);
+ if (ret != sbuf.st_size) {
+ fprintf(stderr, "%s: Can't read %s: %s\n",
+ params->cmdname, fname, strerror(errno));
+ goto err;
+ }
+ close(fd);
+
+ return 0;
+err:
+ close(fd);
+ return -1;
+}
+
+static int fdt_property_strf(void *fdt, const char *name, const char *fmt, ...)
+{
+ char str[100];
+ va_list ptr;
+
+ va_start(ptr, fmt);
+ vsnprintf(str, sizeof(str), fmt, ptr);
+ va_end(ptr);
+ return fdt_property_string(fdt, name, str);
+}
+
+static void get_basename(char *str, int size, const char *fname)
+{
+ const char *p, *start, *end;
+ int len;
+
+ /*
+ * Use the base name as the 'name' field. So for example:
+ *
+ * "arch/arm/dts/sun7i-a20-bananapro.dtb"
+ * becomes "sun7i-a20-bananapro"
+ */
+ p = strrchr(fname, '/');
+ start = p ? p + 1 : fname;
+ p = strrchr(fname, '.');
+ end = p ? p : fname + strlen(fname);
+ len = end - start;
+ if (len >= size)
+ len = size - 1;
+ memcpy(str, start, len);
+ str[len] = '\0';
+}
+
+/**
+ * add_crc_node() - Add a hash node to request a CRC checksum for an image
+ *
+ * @fdt: Device tree to add to (in sequential-write mode)
+ */
+static void add_crc_node(void *fdt)
+{
+ fdt_begin_node(fdt, "hash-1");
+ fdt_property_string(fdt, FIT_ALGO_PROP, "crc32");
+ fdt_end_node(fdt);
+}
+
+/**
+ * fit_write_images() - Write out a list of images to the FIT
+ *
+ * We always include the main image (params->datafile). If there are device
+ * tree files, we include an fdt- node for each of those too.
+ */
+static int fit_write_images(struct image_tool_params *params, char *fdt)
+{
+ struct content_info *cont;
+ const char *typename;
+ char str[100];
+ int upto;
+ int ret;
+
+ fdt_begin_node(fdt, "images");
+
+ /* First the main image */
+ typename = genimg_get_type_short_name(params->fit_image_type);
+ snprintf(str, sizeof(str), "%s-1", typename);
+ fdt_begin_node(fdt, str);
+ fdt_property_string(fdt, FIT_DESC_PROP, params->imagename);
+ fdt_property_string(fdt, FIT_TYPE_PROP, typename);
+ fdt_property_string(fdt, FIT_ARCH_PROP,
+ genimg_get_arch_short_name(params->arch));
+ fdt_property_string(fdt, FIT_OS_PROP,
+ genimg_get_os_short_name(params->os));
+ fdt_property_string(fdt, FIT_COMP_PROP,
+ genimg_get_comp_short_name(params->comp));
+ fdt_property_u32(fdt, FIT_LOAD_PROP, params->addr);
+ fdt_property_u32(fdt, FIT_ENTRY_PROP, params->ep);
+
+ /*
+ * Put data last since it is large. SPL may only load the first part
+ * of the DT, so this way it can access all the above fields.
+ */
+ ret = fdt_property_file(params, fdt, FIT_DATA_PROP, params->datafile);
+ if (ret)
+ return ret;
+ add_crc_node(fdt);
+ fdt_end_node(fdt);
+
+ /* Now the device tree files if available */
+ upto = 0;
+ for (cont = params->content_head; cont; cont = cont->next) {
+ if (cont->type != IH_TYPE_FLATDT)
+ continue;
+ typename = genimg_get_type_short_name(cont->type);
+ snprintf(str, sizeof(str), "%s-%d", FIT_FDT_PROP, ++upto);
+ fdt_begin_node(fdt, str);
+
+ get_basename(str, sizeof(str), cont->fname);
+ fdt_property_string(fdt, FIT_DESC_PROP, str);
+ ret = fdt_property_file(params, fdt, FIT_DATA_PROP,
+ cont->fname);
+ if (ret)
+ return ret;
+ fdt_property_string(fdt, FIT_TYPE_PROP, typename);
+ fdt_property_string(fdt, FIT_ARCH_PROP,
+ genimg_get_arch_short_name(params->arch));
+ fdt_property_string(fdt, FIT_COMP_PROP,
+ genimg_get_comp_short_name(IH_COMP_NONE));
+ add_crc_node(fdt);
+ fdt_end_node(fdt);
+ }
+
+ /* And a ramdisk file if available */
+ if (params->fit_ramdisk) {
+ fdt_begin_node(fdt, FIT_RAMDISK_PROP "-1");
+
+ fdt_property_string(fdt, FIT_TYPE_PROP, FIT_RAMDISK_PROP);
+ fdt_property_string(fdt, FIT_OS_PROP,
+ genimg_get_os_short_name(params->os));
+ fdt_property_string(fdt, FIT_ARCH_PROP,
+ genimg_get_arch_short_name(params->arch));
+
+ ret = fdt_property_file(params, fdt, FIT_DATA_PROP,
+ params->fit_ramdisk);
+ if (ret)
+ return ret;
+ add_crc_node(fdt);
+ fdt_end_node(fdt);
+ }
+
+ fdt_end_node(fdt);
+
+ return 0;
+}
+
+/**
+ * fit_write_configs() - Write out a list of configurations to the FIT
+ *
+ * If there are device tree files, we include a configuration for each, which
+ * selects the main image (params->datafile) and its corresponding device
+ * tree file.
+ *
+ * Otherwise we just create a configuration with the main image in it.
+ */
+static void fit_write_configs(struct image_tool_params *params, char *fdt)
+{
+ struct content_info *cont;
+ const char *typename;
+ char str[100];
+ int upto;
+
+ fdt_begin_node(fdt, "configurations");
+ fdt_property_string(fdt, FIT_DEFAULT_PROP, "conf-1");
+
+ upto = 0;
+ for (cont = params->content_head; cont; cont = cont->next) {
+ if (cont->type != IH_TYPE_FLATDT)
+ continue;
+ typename = genimg_get_type_short_name(cont->type);
+ snprintf(str, sizeof(str), "conf-%d", ++upto);
+ fdt_begin_node(fdt, str);
+
+ get_basename(str, sizeof(str), cont->fname);
+ fdt_property_string(fdt, FIT_DESC_PROP, str);
+
+ typename = genimg_get_type_short_name(params->fit_image_type);
+ snprintf(str, sizeof(str), "%s-1", typename);
+ fdt_property_string(fdt, typename, str);
+ fdt_property_string(fdt, FIT_LOADABLE_PROP, str);
+
+ if (params->fit_ramdisk)
+ fdt_property_string(fdt, FIT_RAMDISK_PROP,
+ FIT_RAMDISK_PROP "-1");
+
+ snprintf(str, sizeof(str), FIT_FDT_PROP "-%d", upto);
+ fdt_property_string(fdt, FIT_FDT_PROP, str);
+ fdt_end_node(fdt);
+ }
+
+ if (!upto) {
+ fdt_begin_node(fdt, "conf-1");
+ typename = genimg_get_type_short_name(params->fit_image_type);
+ snprintf(str, sizeof(str), "%s-1", typename);
+ fdt_property_string(fdt, typename, str);
+
+ if (params->fit_ramdisk)
+ fdt_property_string(fdt, FIT_RAMDISK_PROP,
+ FIT_RAMDISK_PROP "-1");
+
+ fdt_end_node(fdt);
+ }
+
+ fdt_end_node(fdt);
+}
+
+static int fit_build_fdt(struct image_tool_params *params, char *fdt, int size)
+{
+ int ret;
+
+ ret = fdt_create(fdt, size);
+ if (ret)
+ return ret;
+ fdt_finish_reservemap(fdt);
+ fdt_begin_node(fdt, "");
+ fdt_property_strf(fdt, FIT_DESC_PROP,
+ "%s image with one or more FDT blobs",
+ genimg_get_type_name(params->fit_image_type));
+ fdt_property_strf(fdt, "creator", "U-Boot mkimage %s", PLAIN_VERSION);
+ fdt_property_u32(fdt, "#address-cells", 1);
+ ret = fit_write_images(params, fdt);
+ if (ret)
+ return ret;
+ fit_write_configs(params, fdt);
+ fdt_end_node(fdt);
+ ret = fdt_finish(fdt);
+ if (ret)
+ return ret;
+
+ return fdt_totalsize(fdt);
+}
+
+static int fit_build(struct image_tool_params *params, const char *fname)
+{
+ char *buf;
+ int size;
+ int ret;
+ int fd;
+
+ size = fit_calc_size(params);
+ if (size < 0)
+ return -1;
+ buf = calloc(1, size);
+ if (!buf) {
+ fprintf(stderr, "%s: Out of memory (%d bytes)\n",
+ params->cmdname, size);
+ return -1;
+ }
+ ret = fit_build_fdt(params, buf, size);
+ if (ret < 0) {
+ fprintf(stderr, "%s: Failed to build FIT image\n",
+ params->cmdname);
+ goto err_buf;
+ }
+ size = ret;
+ fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666);
+ if (fd < 0) {
+ fprintf(stderr, "%s: Can't open %s: %s\n",
+ params->cmdname, fname, strerror(errno));
+ goto err_buf;
+ }
+ ret = write(fd, buf, size);
+ if (ret != size) {
+ fprintf(stderr, "%s: Can't write %s: %s\n",
+ params->cmdname, fname, strerror(errno));
+ goto err;
+ }
+ close(fd);
+ free(buf);
+
+ return 0;
+err:
+ close(fd);
+err_buf:
+ free(buf);
+ return -1;
+}
+
+/**
+ * fit_extract_data() - Move all data outside the FIT
+ *
+ * This takes a normal FIT file and removes all the 'data' properties from it.
+ * The data is placed in an area after the FIT so that it can be accessed
+ * using an offset into that area. The 'data' properties turn into
+ * 'data-offset' properties.
+ *
+ * This function cannot cope with FITs with 'data-offset' properties. All
+ * data must be in 'data' properties on entry.
+ */
+static int fit_extract_data(struct image_tool_params *params, const char *fname)
+{
+ void *buf = NULL;
+ int buf_ptr;
+ int fit_size, new_size;
+ int fd;
+ struct stat sbuf;
+ void *fdt;
+ int ret;
+ int images;
+ int node;
+ int image_number;
+ int align_size;
+
+ align_size = params->bl_len ? params->bl_len : 4;
+ fd = mmap_fdt(params->cmdname, fname, 0, &fdt, &sbuf, false, false);
+ if (fd < 0)
+ return -EIO;
+ fit_size = fdt_totalsize(fdt);
+
+ images = fdt_path_offset(fdt, FIT_IMAGES_PATH);
+ if (images < 0) {
+ debug("%s: Cannot find /images node: %d\n", __func__, images);
+ ret = -EINVAL;
+ goto err_munmap;
+ }
+ image_number = fdtdec_get_child_count(fdt, images);
+
+ /*
+ * Allocate space to hold the image data we will extract,
+ * extral space allocate for image alignment to prevent overflow.
+ */
+ buf = calloc(1, fit_size + (align_size * image_number));
+ if (!buf) {
+ ret = -ENOMEM;
+ goto err_munmap;
+ }
+ buf_ptr = 0;
+
+ for (node = fdt_first_subnode(fdt, images);
+ node >= 0;
+ node = fdt_next_subnode(fdt, node)) {
+ const char *data;
+ int len;
+
+ data = fdt_getprop(fdt, node, FIT_DATA_PROP, &len);
+ if (!data)
+ continue;
+ memcpy(buf + buf_ptr, data, len);
+ debug("Extracting data size %x\n", len);
+
+ ret = fdt_delprop(fdt, node, FIT_DATA_PROP);
+ if (ret) {
+ ret = -EPERM;
+ goto err_munmap;
+ }
+ if (params->external_offset > 0) {
+ /* An external offset positions the data absolutely. */
+ fdt_setprop_u32(fdt, node, FIT_DATA_POSITION_PROP,
+ params->external_offset + buf_ptr);
+ } else {
+ fdt_setprop_u32(fdt, node, FIT_DATA_OFFSET_PROP,
+ buf_ptr);
+ }
+ fdt_setprop_u32(fdt, node, FIT_DATA_SIZE_PROP, len);
+ buf_ptr += ALIGN(len, align_size);
+ }
+
+ /* Pack the FDT and place the data after it */
+ fdt_pack(fdt);
+
+ new_size = fdt_totalsize(fdt);
+ new_size = ALIGN(new_size, align_size);
+ fdt_set_totalsize(fdt, new_size);
+ debug("Size reduced from %x to %x\n", fit_size, fdt_totalsize(fdt));
+ debug("External data size %x\n", buf_ptr);
+ munmap(fdt, sbuf.st_size);
+
+ if (ftruncate(fd, new_size)) {
+ debug("%s: Failed to truncate file: %s\n", __func__,
+ strerror(errno));
+ ret = -EIO;
+ goto err;
+ }
+
+ /* Check if an offset for the external data was set. */
+ if (params->external_offset > 0) {
+ if (params->external_offset < new_size) {
+ debug("External offset %x overlaps FIT length %x",
+ params->external_offset, new_size);
+ ret = -EINVAL;
+ goto err;
+ }
+ new_size = params->external_offset;
+ }
+ if (lseek(fd, new_size, SEEK_SET) < 0) {
+ debug("%s: Failed to seek to end of file: %s\n", __func__,
+ strerror(errno));
+ ret = -EIO;
+ goto err;
+ }
+ if (write(fd, buf, buf_ptr) != buf_ptr) {
+ debug("%s: Failed to write external data to file %s\n",
+ __func__, strerror(errno));
+ ret = -EIO;
+ goto err;
+ }
+ free(buf);
+ close(fd);
+ return 0;
+
+err_munmap:
+ munmap(fdt, sbuf.st_size);
+err:
+ free(buf);
+ close(fd);
+ return ret;
+}
+
+static int fit_import_data(struct image_tool_params *params, const char *fname)
+{
+ void *fdt, *old_fdt;
+ int fit_size, new_size, size, data_base;
+ int fd;
+ struct stat sbuf;
+ int ret;
+ int images;
+ int node;
+
+ fd = mmap_fdt(params->cmdname, fname, 0, &old_fdt, &sbuf, false, false);
+ if (fd < 0)
+ return -EIO;
+ fit_size = fdt_totalsize(old_fdt);
+ data_base = ALIGN(fit_size, 4);
+
+ /* Allocate space to hold the new FIT */
+ size = sbuf.st_size + 16384;
+ fdt = calloc(1, size);
+ if (!fdt) {
+ fprintf(stderr, "%s: Failed to allocate memory (%d bytes)\n",
+ __func__, size);
+ ret = -ENOMEM;
+ goto err_munmap;
+ }
+ ret = fdt_open_into(old_fdt, fdt, size);
+ if (ret) {
+ debug("%s: Failed to expand FIT: %s\n", __func__,
+ fdt_strerror(errno));
+ ret = -EINVAL;
+ goto err_munmap;
+ }
+
+ images = fdt_path_offset(fdt, FIT_IMAGES_PATH);
+ if (images < 0) {
+ debug("%s: Cannot find /images node: %d\n", __func__, images);
+ ret = -EINVAL;
+ goto err_munmap;
+ }
+
+ for (node = fdt_first_subnode(fdt, images);
+ node >= 0;
+ node = fdt_next_subnode(fdt, node)) {
+ int buf_ptr;
+ int len;
+
+ buf_ptr = fdtdec_get_int(fdt, node, "data-offset", -1);
+ len = fdtdec_get_int(fdt, node, "data-size", -1);
+ if (buf_ptr == -1 || len == -1)
+ continue;
+ debug("Importing data size %x\n", len);
+
+ ret = fdt_setprop(fdt, node, "data",
+ old_fdt + data_base + buf_ptr, len);
+ if (ret) {
+ debug("%s: Failed to write property: %s\n", __func__,
+ fdt_strerror(ret));
+ ret = -EINVAL;
+ goto err_munmap;
+ }
+ }
+
+ munmap(old_fdt, sbuf.st_size);
+
+ /* Close the old fd so we can re-use it. */
+ close(fd);
+
+ /* Pack the FDT and place the data after it */
+ fdt_pack(fdt);
+
+ new_size = fdt_totalsize(fdt);
+ debug("Size expanded from %x to %x\n", fit_size, new_size);
+
+ fd = open(fname, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0666);
+ if (fd < 0) {
+ fprintf(stderr, "%s: Can't open %s: %s\n",
+ params->cmdname, fname, strerror(errno));
+ ret = -EIO;
+ goto err;
+ }
+ if (write(fd, fdt, new_size) != new_size) {
+ debug("%s: Failed to write external data to file %s\n",
+ __func__, strerror(errno));
+ ret = -EIO;
+ goto err;
+ }
+
+ free(fdt);
+ close(fd);
+ return 0;
+
+err_munmap:
+ munmap(old_fdt, sbuf.st_size);
+err:
+ free(fdt);
+ close(fd);
+ return ret;
+}
+
+static 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, 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;
+}
+
+/**
+ * fit_handle_file - main FIT file processing function
+ *
+ * fit_handle_file() runs dtc to convert .its to .itb, includes
+ * binary data, updates timestamp property and calculates hashes.
+ *
+ * datafile - .its file
+ * imagefile - .itb file
+ *
+ * returns:
+ * only on success, otherwise calls exit (EXIT_FAILURE);
+ */
+static int fit_handle_file(struct image_tool_params *params)
+{
+ char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
+ char bakfile[MKIMAGE_MAX_TMPFILE_LEN + 4] = {0};
+ char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
+ size_t size_inc;
+ int ret;
+
+ /* Flattened Image Tree (FIT) format handling */
+ debug ("FIT format handling\n");
+
+ /* call dtc to include binary properties into the tmp file */
+ if (strlen (params->imagefile) +
+ strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) {
+ fprintf (stderr, "%s: Image file name (%s) too long, "
+ "can't create tmpfile",
+ params->imagefile, params->cmdname);
+ return (EXIT_FAILURE);
+ }
+ sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
+
+ /* We either compile the source file, or use the existing FIT image */
+ if (params->auto_its) {
+ if (fit_build(params, tmpfile)) {
+ fprintf(stderr, "%s: failed to build FIT\n",
+ params->cmdname);
+ return EXIT_FAILURE;
+ }
+ *cmd = '\0';
+ } else if (params->datafile) {
+ /* dtc -I dts -O dtb -p 500 -o tmpfile datafile */
+ snprintf(cmd, sizeof(cmd), "%s %s -o \"%s\" \"%s\"",
+ MKIMAGE_DTC, params->dtc, tmpfile, params->datafile);
+ debug("Trying to execute \"%s\"\n", cmd);
+ } else {
+ snprintf(cmd, sizeof(cmd), "cp \"%s\" \"%s\"",
+ params->imagefile, tmpfile);
+ }
+ if (strlen(cmd) >= MKIMAGE_MAX_DTC_CMDLINE_LEN - 1) {
+ fprintf(stderr, "WARNING: command-line for FIT creation might be truncated and will probably fail.\n");
+ }
+
+ if (*cmd && system(cmd) == -1) {
+ fprintf (stderr, "%s: system(%s) failed: %s\n",
+ params->cmdname, cmd, strerror(errno));
+ goto err_system;
+ }
+
+ /* Move the data so it is internal to the FIT, if needed */
+ ret = fit_import_data(params, tmpfile);
+ if (ret)
+ goto err_system;
+
+ /*
+ * Copy the tmpfile to bakfile, then in the following loop
+ * we copy bakfile to tmpfile. So we always start from the
+ * beginning.
+ */
+ sprintf(bakfile, "%s%s", tmpfile, ".bak");
+ rename(tmpfile, bakfile);
+
+ /*
+ * Set hashes for images in the blob. Unfortunately we may need more
+ * space in either FDT, so keep trying until we succeed.
+ *
+ * Note: this is pretty inefficient for signing, since we must
+ * calculate the signature every time. It would be better to calculate
+ * all the data and then store it in a separate step. However, this
+ * would be considerably more complex to implement. Generally a few
+ * steps of this loop is enough to sign with several keys.
+ */
+ for (size_inc = 0; size_inc < 64 * 1024; size_inc += 1024) {
+ if (copyfile(bakfile, tmpfile) < 0) {
+ printf("Can't copy %s to %s\n", bakfile, tmpfile);
+ ret = -EIO;
+ break;
+ }
+ ret = fit_add_file_data(params, size_inc, tmpfile);
+ if (!ret || ret != -ENOSPC)
+ break;
+ }
+
+ if (ret) {
+ fprintf(stderr, "%s Can't add hashes to FIT blob: %d\n",
+ params->cmdname, ret);
+ goto err_system;
+ }
+
+ /* Move the data so it is external to the FIT, if requested */
+ if (params->external_data) {
+ ret = fit_extract_data(params, tmpfile);
+ if (ret)
+ goto err_system;
+ }
+
+ if (rename (tmpfile, params->imagefile) == -1) {
+ fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
+ params->cmdname, tmpfile, params->imagefile,
+ strerror (errno));
+ unlink (tmpfile);
+ unlink(bakfile);
+ unlink (params->imagefile);
+ return EXIT_FAILURE;
+ }
+ unlink(bakfile);
+ return EXIT_SUCCESS;
+
+err_system:
+ unlink(tmpfile);
+ unlink(bakfile);
+ return -1;
+}
+
+/**
+ * fit_image_extract - extract a FIT component image
+ * @fit: pointer to the FIT format image header
+ * @image_noffset: offset of the component image node
+ * @file_name: name of the file to store the FIT sub-image
+ *
+ * returns:
+ * zero in case of success or a negative value if fail.
+ */
+static int fit_image_extract(
+ const void *fit,
+ int image_noffset,
+ const char *file_name)
+{
+ const void *file_data;
+ size_t file_size = 0;
+ int ret;
+
+ /* get the data address and size of component at offset "image_noffset" */
+ ret = fit_image_get_data_and_size(fit, image_noffset, &file_data, &file_size);
+ if (ret) {
+ fprintf(stderr, "Could not get component information\n");
+ return ret;
+ }
+
+ /* save the "file_data" into the file specified by "file_name" */
+ return imagetool_save_subimage(file_name, (ulong) file_data, file_size);
+}
+
+/**
+ * fit_extract_contents - retrieve a sub-image component from the FIT image
+ * @ptr: pointer to the FIT format image header
+ * @params: command line parameters
+ *
+ * returns:
+ * zero in case of success or a negative value if fail.
+ */
+static int fit_extract_contents(void *ptr, struct image_tool_params *params)
+{
+ int images_noffset;
+ int noffset;
+ int ndepth;
+ const void *fit = ptr;
+ int count = 0;
+ const char *p;
+
+ /* Indent string is defined in header image.h */
+ p = IMAGE_INDENT_STRING;
+
+ if (fit_check_format(fit, IMAGE_SIZE_INVAL)) {
+ printf("Bad FIT image format\n");
+ return -1;
+ }
+
+ /* Find images parent node offset */
+ images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
+ if (images_noffset < 0) {
+ printf("Can't find images parent node '%s' (%s)\n",
+ FIT_IMAGES_PATH, fdt_strerror(images_noffset));
+ return -1;
+ }
+
+ /* Avoid any overrun */
+ count = fit_get_subimage_count(fit, images_noffset);
+ if ((params->pflag < 0) || (count <= params->pflag)) {
+ printf("No such component at '%d'\n", params->pflag);
+ return -1;
+ }
+
+ /* Process its subnodes, extract the desired component from image */
+ for (ndepth = 0, count = 0,
+ noffset = fdt_next_node(fit, images_noffset, &ndepth);
+ (noffset >= 0) && (ndepth > 0);
+ noffset = fdt_next_node(fit, noffset, &ndepth)) {
+ if (ndepth == 1) {
+ /*
+ * Direct child node of the images parent node,
+ * i.e. component image node.
+ */
+ if (params->pflag == count) {
+ printf("Extracted:\n%s Image %u (%s)\n", p,
+ count, fit_get_name(fit, noffset, NULL));
+
+ fit_image_print(fit, noffset, p);
+
+ return fit_image_extract(fit, noffset,
+ params->outfile);
+ }
+
+ count++;
+ }
+ }
+
+ return 0;
+}
+
+static int fit_check_params(struct image_tool_params *params)
+{
+ if (params->auto_its)
+ return 0;
+ return ((params->dflag && params->fflag) ||
+ (params->fflag && params->lflag) ||
+ (params->lflag && params->dflag));
+}
+
+U_BOOT_IMAGE_TYPE(
+ fitimage,
+ "FIT Image support",
+ sizeof(image_header_t),
+ (void *)&header,
+ fit_check_params,
+ fit_verify_header,
+ fit_print_contents,
+ NULL,
+ fit_extract_contents,
+ fit_check_image_types,
+ fit_handle_file,
+ NULL /* FIT images use DTB header */
+);