diff options
Diffstat (limited to 'common/image-fit.c')
| -rw-r--r-- | common/image-fit.c | 171 | 
1 files changed, 1 insertions, 170 deletions
| diff --git a/common/image-fit.c b/common/image-fit.c index 3ba1ad3a6..3e72da0a7 100644 --- a/common/image-fit.c +++ b/common/image-fit.c @@ -827,7 +827,7 @@ int fit_set_timestamp(void *fit, int noffset, time_t timestamp)   *     0, on success   *    -1, when algo is unsupported   */ -static int calculate_hash(const void *data, int data_len, const char *algo, +int calculate_hash(const void *data, int data_len, const char *algo,  			uint8_t *value, int *value_len)  {  	if (strcmp(algo, "crc32") == 0) { @@ -849,175 +849,6 @@ static int calculate_hash(const void *data, int data_len, const char *algo,  	return 0;  } -#ifdef USE_HOSTCC -/** - * fit_set_hashes - process FIT component image nodes and calculate hashes - * @fit: pointer to the FIT format image header - * - * fit_set_hashes() adds hash values for all component images in the FIT blob. - * Hashes are calculated for all component images which have hash subnodes - * with algorithm property set to one of the supported hash algorithms. - * - * returns - *     0, on success - *     libfdt error code, on failure - */ -int fit_set_hashes(void *fit) -{ -	int images_noffset; -	int noffset; -	int ndepth; -	int ret; - -	/* 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 images_noffset; -	} - -	/* Process its subnodes, print out component images details */ -	for (ndepth = 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. -			 */ -			ret = fit_image_set_hashes(fit, noffset); -			if (ret) -				return ret; -		} -	} - -	return 0; -} - -/** - * fit_image_set_hashes - calculate/set hashes for given component image node - * @fit: pointer to the FIT format image header - * @image_noffset: requested component image node - * - * fit_image_set_hashes() adds hash values for an component image node. All - * existing hash subnodes are checked, if algorithm property is set to one of - * the supported hash algorithms, hash value is computed and corresponding - * hash node property is set, for example: - * - * Input component image node structure: - * - * o image@1 (at image_noffset) - *   | - data = [binary data] - *   o hash@1 - *     |- algo = "sha1" - * - * Output component image node structure: - * - * o image@1 (at image_noffset) - *   | - data = [binary data] - *   o hash@1 - *     |- algo = "sha1" - *     |- value = sha1(data) - * - * returns: - *     0 on sucess - *    <0 on failure - */ -int fit_image_set_hashes(void *fit, int image_noffset) -{ -	const void *data; -	size_t size; -	char *algo; -	uint8_t value[FIT_MAX_HASH_LEN]; -	int value_len; -	int noffset; -	int ndepth; - -	/* Get image data and data length */ -	if (fit_image_get_data(fit, image_noffset, &data, &size)) { -		printf("Can't get image data/size\n"); -		return -1; -	} - -	/* Process all hash subnodes of the component image node */ -	for (ndepth = 0, noffset = fdt_next_node(fit, image_noffset, &ndepth); -	     (noffset >= 0) && (ndepth > 0); -	     noffset = fdt_next_node(fit, noffset, &ndepth)) { -		if (ndepth == 1) { -			/* Direct child node of the component image node */ - -			/* -			 * Check subnode name, must be equal to "hash". -			 * Multiple hash nodes require unique unit node -			 * names, e.g. hash@1, hash@2, etc. -			 */ -			if (strncmp(fit_get_name(fit, noffset, NULL), -				    FIT_HASH_NODENAME, -				    strlen(FIT_HASH_NODENAME)) != 0) { -				/* Not a hash subnode, skip it */ -				continue; -			} - -			if (fit_image_hash_get_algo(fit, noffset, &algo)) { -				printf("Can't get hash algo property for '%s' hash node in '%s' image node\n", -				       fit_get_name(fit, noffset, NULL), -				       fit_get_name(fit, image_noffset, NULL)); -				return -1; -			} - -			if (calculate_hash(data, size, algo, value, -					   &value_len)) { -				printf("Unsupported hash algorithm (%s) for '%s' hash node in '%s' image node\n", -				       algo, fit_get_name(fit, noffset, NULL), -				       fit_get_name(fit, image_noffset, NULL)); -				return -1; -			} - -			if (fit_image_hash_set_value(fit, noffset, value, -						     value_len)) { -				printf("Can't set hash value for '%s' hash node in '%s' image node\n", -				       fit_get_name(fit, noffset, NULL), -				       fit_get_name(fit, image_noffset, NULL)); -				return -1; -			} -		} -	} - -	return 0; -} - -/** - * fit_image_hash_set_value - set hash value in requested has node - * @fit: pointer to the FIT format image header - * @noffset: hash node offset - * @value: hash value to be set - * @value_len: hash value length - * - * fit_image_hash_set_value() attempts to set hash value in a node at offset - * given and returns operation status to the caller. - * - * returns - *     0, on success - *     -1, on failure - */ -int fit_image_hash_set_value(void *fit, int noffset, uint8_t *value, -				int value_len) -{ -	int ret; - -	ret = fdt_setprop(fit, noffset, FIT_VALUE_PROP, value, value_len); -	if (ret) { -		printf("Can't set hash '%s' property for '%s' node(%s)\n", -		       FIT_VALUE_PROP, fit_get_name(fit, noffset, NULL), -		       fdt_strerror(ret)); -		return -1; -	} - -	return 0; -} -#endif /* USE_HOSTCC */ -  /**   * fit_image_check_hashes - verify data intergity   * @fit: pointer to the FIT format image header |