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image: Move HOSTCC image code to tools/
This code is never compiled into U-Boot, so move it into a separate file in tools/ to avoid the large #ifdef. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Simon Glass
201
tools/image-host.c
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201
tools/image-host.c
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/*
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* Copyright (c) 2013, Google Inc.
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*
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* (C) Copyright 2008 Semihalf
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*
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* (C) Copyright 2000-2006
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include "mkimage.h"
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#include <bootstage.h>
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#include <image.h>
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#include <sha1.h>
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#include <time.h>
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#include <u-boot/crc.h>
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#include <u-boot/md5.h>
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/**
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* fit_set_hashes - process FIT component image nodes and calculate hashes
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* @fit: pointer to the FIT format image header
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*
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* fit_set_hashes() adds hash values for all component images in the FIT blob.
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* Hashes are calculated for all component images which have hash subnodes
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* with algorithm property set to one of the supported hash algorithms.
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*
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* returns
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* 0, on success
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* libfdt error code, on failure
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*/
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int fit_set_hashes(void *fit)
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{
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int images_noffset;
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int noffset;
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int ndepth;
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int ret;
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/* Find images parent node offset */
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images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
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if (images_noffset < 0) {
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printf("Can't find images parent node '%s' (%s)\n",
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FIT_IMAGES_PATH, fdt_strerror(images_noffset));
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return images_noffset;
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}
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/* Process its subnodes, print out component images details */
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for (ndepth = 0, noffset = fdt_next_node(fit, images_noffset, &ndepth);
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(noffset >= 0) && (ndepth > 0);
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noffset = fdt_next_node(fit, noffset, &ndepth)) {
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if (ndepth == 1) {
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/*
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* Direct child node of the images parent node,
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* i.e. component image node.
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*/
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ret = fit_image_set_hashes(fit, noffset);
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if (ret)
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return ret;
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}
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}
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return 0;
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}
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/**
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* fit_image_set_hashes - calculate/set hashes for given component image node
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* @fit: pointer to the FIT format image header
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* @image_noffset: requested component image node
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*
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* fit_image_set_hashes() adds hash values for an component image node. All
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* existing hash subnodes are checked, if algorithm property is set to one of
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* the supported hash algorithms, hash value is computed and corresponding
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* hash node property is set, for example:
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*
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* Input component image node structure:
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*
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* o image@1 (at image_noffset)
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* | - data = [binary data]
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* o hash@1
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* |- algo = "sha1"
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*
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* Output component image node structure:
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*
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* o image@1 (at image_noffset)
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* | - data = [binary data]
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* o hash@1
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* |- algo = "sha1"
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* |- value = sha1(data)
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*
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* returns:
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* 0 on sucess
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* <0 on failure
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*/
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int fit_image_set_hashes(void *fit, int image_noffset)
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{
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const void *data;
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size_t size;
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char *algo;
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uint8_t value[FIT_MAX_HASH_LEN];
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int value_len;
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int noffset;
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int ndepth;
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/* Get image data and data length */
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if (fit_image_get_data(fit, image_noffset, &data, &size)) {
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printf("Can't get image data/size\n");
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return -1;
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}
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/* Process all hash subnodes of the component image node */
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for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth);
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(noffset >= 0) && (ndepth > 0);
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noffset = fdt_next_node(fit, noffset, &ndepth)) {
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if (ndepth == 1) {
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/* Direct child node of the component image node */
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/*
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* Check subnode name, must be equal to "hash".
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* Multiple hash nodes require unique unit node
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* names, e.g. hash@1, hash@2, etc.
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*/
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if (strncmp(fit_get_name(fit, noffset, NULL),
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FIT_HASH_NODENAME,
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strlen(FIT_HASH_NODENAME)) != 0) {
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/* Not a hash subnode, skip it */
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continue;
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}
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if (fit_image_hash_get_algo(fit, noffset, &algo)) {
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printf("Can't get hash algo property for '%s' hash node in '%s' image node\n",
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fit_get_name(fit, noffset, NULL),
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fit_get_name(fit, image_noffset, NULL));
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return -1;
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}
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if (calculate_hash(data, size, algo, value,
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&value_len)) {
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printf("Unsupported hash algorithm (%s) for '%s' hash node in '%s' image node\n",
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algo, fit_get_name(fit, noffset, NULL),
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fit_get_name(fit, image_noffset, NULL));
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return -1;
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}
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if (fit_image_hash_set_value(fit, noffset, value,
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value_len)) {
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printf("Can't set hash value for '%s' hash node in '%s' image node\n",
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fit_get_name(fit, noffset, NULL),
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fit_get_name(fit, image_noffset, NULL));
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return -1;
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}
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}
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}
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return 0;
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}
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/**
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* fit_image_hash_set_value - set hash value in requested has node
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* @fit: pointer to the FIT format image header
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* @noffset: hash node offset
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* @value: hash value to be set
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* @value_len: hash value length
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*
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* fit_image_hash_set_value() attempts to set hash value in a node at offset
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* given and returns operation status to the caller.
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*
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* returns
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* 0, on success
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* -1, on failure
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*/
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int fit_image_hash_set_value(void *fit, int noffset, uint8_t *value,
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int value_len)
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{
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int ret;
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ret = fdt_setprop(fit, noffset, FIT_VALUE_PROP, value, value_len);
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if (ret) {
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printf("Can't set hash '%s' property for '%s' node(%s)\n",
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FIT_VALUE_PROP, fit_get_name(fit, noffset, NULL),
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fdt_strerror(ret));
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return -1;
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}
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return 0;
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}
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