*
* All rights reserved.
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
+#include "imagetool.h"
+#include "fit_common.h"
#include "mkimage.h"
#include <image.h>
#include <u-boot/crc.h>
static image_header_t header;
-static int fit_verify_header (unsigned char *ptr, int image_size,
- struct mkimage_params *params)
+static int fit_add_file_data(struct image_tool_params *params, size_t size_inc,
+ const char *tmpfile)
{
- return fdt_check_header ((void *)ptr);
-}
+ int tfd, destfd = 0;
+ void *dest_blob = NULL;
+ off_t destfd_size = 0;
+ struct stat sbuf;
+ void *ptr;
+ int ret = 0;
-static int fit_check_image_types (uint8_t type)
-{
- if (type == IH_TYPE_FLATDT)
- return EXIT_SUCCESS;
- else
- return EXIT_FAILURE;
+ tfd = mmap_fdt(params->cmdname, tmpfile, size_inc, &ptr, &sbuf, true);
+ 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);
+ 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)
+ ret = fit_set_timestamp(ptr, 0, sbuf.st_mtime);
+
+ if (!ret) {
+ ret = fit_add_verification_data(params->keydir, dest_blob, ptr,
+ params->comment,
+ params->require_keys);
+ }
+
+ if (dest_blob) {
+ munmap(dest_blob, destfd_size);
+ close(destfd);
+ }
+
+err_keydest:
+ munmap(ptr, sbuf.st_size);
+ close(tfd);
+
+ return ret;
}
/**
* returns:
* only on success, otherwise calls exit (EXIT_FAILURE);
*/
-static int fit_handle_file (struct mkimage_params *params)
+static int fit_handle_file(struct image_tool_params *params)
{
char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
- int tfd;
- struct stat sbuf;
- unsigned char *ptr;
+ size_t size_inc;
+ int ret;
/* Flattened Image Tree (FIT) format handling */
debug ("FIT format handling\n");
}
sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
- /* dtc -I dts -O dtb -p 500 datafile > tmpfile */
- sprintf (cmd, "%s %s %s > %s",
- MKIMAGE_DTC, params->dtc, params->datafile, tmpfile);
- debug ("Trying to execute \"%s\"\n", cmd);
+ /* We either compile the source file, or use the existing FIT image */
+ if (params->datafile) {
+ /* dtc -I dts -O dtb -p 500 datafile > tmpfile */
+ snprintf(cmd, sizeof(cmd), "%s %s %s > %s",
+ MKIMAGE_DTC, params->dtc, params->datafile, tmpfile);
+ debug("Trying to execute \"%s\"\n", cmd);
+ } else {
+ snprintf(cmd, sizeof(cmd), "cp %s %s",
+ params->imagefile, tmpfile);
+ }
if (system (cmd) == -1) {
fprintf (stderr, "%s: system(%s) failed: %s\n",
params->cmdname, cmd, strerror(errno));
- unlink (tmpfile);
- return (EXIT_FAILURE);
+ goto err_system;
}
- /* load FIT blob into memory */
- tfd = open (tmpfile, O_RDWR|O_BINARY);
-
- if (tfd < 0) {
- fprintf (stderr, "%s: Can't open %s: %s\n",
- params->cmdname, tmpfile, strerror(errno));
- unlink (tmpfile);
- return (EXIT_FAILURE);
+ /*
+ * 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) {
+ ret = fit_add_file_data(params, size_inc, tmpfile);
+ if (!ret || ret != -ENOSPC)
+ break;
}
- if (fstat (tfd, &sbuf) < 0) {
- fprintf (stderr, "%s: Can't stat %s: %s\n",
- params->cmdname, tmpfile, strerror(errno));
- unlink (tmpfile);
- return (EXIT_FAILURE);
+ if (ret) {
+ fprintf(stderr, "%s Can't add hashes to FIT blob\n",
+ params->cmdname);
+ goto err_system;
}
- ptr = mmap (0, sbuf.st_size, PROT_READ|PROT_WRITE, MAP_SHARED,
- tfd, 0);
- if (ptr == MAP_FAILED) {
- fprintf (stderr, "%s: Can't read %s: %s\n",
- params->cmdname, tmpfile, strerror(errno));
+ 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);
- return (EXIT_FAILURE);
+ unlink (params->imagefile);
+ return EXIT_FAILURE;
}
+ return EXIT_SUCCESS;
- /* check if ptr has a valid blob */
- if (fdt_check_header (ptr)) {
- fprintf (stderr, "%s: Invalid FIT blob\n", params->cmdname);
- unlink (tmpfile);
- return (EXIT_FAILURE);
+err_system:
+ unlink(tmpfile);
+ 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;
+
+ /* get the "data" property of component at offset "image_noffset" */
+ fit_image_get_data(fit, image_noffset, &file_data, &file_size);
+
+ /* 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)) {
+ printf("Bad FIT image format\n");
+ return -1;
}
- /* set hashes for images in the blob */
- if (fit_set_hashes (ptr)) {
- fprintf (stderr, "%s Can't add hashes to FIT blob",
- params->cmdname);
- unlink (tmpfile);
- return (EXIT_FAILURE);
+ /* 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;
}
- /* add a timestamp at offset 0 i.e., root */
- if (fit_set_timestamp (ptr, 0, sbuf.st_mtime)) {
- fprintf (stderr, "%s: Can't add image timestamp\n",
- params->cmdname);
- unlink (tmpfile);
- return (EXIT_FAILURE);
+ /* 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;
}
- debug ("Added timestamp successfully\n");
- munmap ((void *)ptr, sbuf.st_size);
- close (tfd);
+ /* 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));
- 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 (params->imagefile);
- return (EXIT_FAILURE);
+ fit_image_print(fit, noffset, p);
+
+ return fit_image_extract(fit, noffset,
+ params->outfile);
+ }
+
+ count++;
+ }
}
- return (EXIT_SUCCESS);
+
+ return 0;
}
-static int fit_check_params (struct mkimage_params *params)
+static int fit_check_params(struct image_tool_params *params)
{
return ((params->dflag && (params->fflag || params->lflag)) ||
(params->fflag && (params->dflag || params->lflag)) ||
(params->lflag && (params->dflag || params->fflag)));
}
-static struct image_type_params fitimage_params = {
- .name = "FIT Image support",
- .header_size = sizeof(image_header_t),
- .hdr = (void*)&header,
- .verify_header = fit_verify_header,
- .print_header = fit_print_contents,
- .check_image_type = fit_check_image_types,
- .fflag_handle = fit_handle_file,
- .set_header = NULL, /* FIT images use DTB header */
- .check_params = fit_check_params,
-};
-
-void init_fit_image_type (void)
-{
- mkimage_register (&fitimage_params);
-}
+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 */
+);
projects / karo-tx-uboot.git / blobdiff