bool host_fw_are_images_different()

in core/host_fw/host_fw_util.c [251:319]

• 58 lines of code
• 22 McCabe index (conditional complexity)

bool host_fw_are_images_different (const struct pfm_image_list *img_list1,
	const struct pfm_image_list *img_list2)
{
	size_t i;

	if ((img_list1 == NULL) || (img_list2 == NULL)) {
		if ((img_list1 == NULL) && (img_list2 == NULL)) {
			return false;
		}

		return true;
	}

	if (img_list1->count != img_list2->count) {
		return true;
	}

	if ((img_list1->images_sig && img_list2->images_hash) ||
		(img_list1->images_hash && img_list2->images_sig)) {
		return true;
	}

	for (i = 0; i < img_list1->count; i++) {
		if (img_list1->images_sig) {
			if (!rsa_same_public_key (&img_list1->images_sig[i].key,
				&img_list2->images_sig[i].key)) {
				return true;
			}

			if ((img_list1->images_sig[i].sig_length != img_list2->images_sig[i].sig_length) ||
				(img_list1->images_sig[i].always_validate !=
				img_list2->images_sig[i].always_validate)) {
				return true;
			}

			if (buffer_compare (img_list1->images_sig[i].signature,
				img_list2->images_sig[i].signature, img_list1->images_sig->sig_length) != 0) {
				return true;
			}

			if (host_fw_are_regions_different (img_list1->images_sig[i].regions,
				img_list1->images_sig[i].count, img_list2->images_sig[i].regions,
				img_list2->images_sig[i].count)) {
				return true;
			}
		}
		else {
			if ((img_list1->images_hash[i].hash_length != img_list2->images_hash[i].hash_length) ||
				(img_list1->images_hash[i].hash_type != img_list2->images_hash[i].hash_type) ||
				(img_list1->images_hash[i].always_validate !=
				img_list2->images_hash[i].always_validate)) {
				return true;
			}

			if (buffer_compare (img_list1->images_hash[i].hash, img_list2->images_hash[i].hash,
				img_list1->images_hash->hash_length) != 0) {
				return true;
			}

			if (host_fw_are_regions_different (img_list1->images_hash[i].regions,
				img_list1->images_hash[i].count, img_list2->images_hash[i].regions,
				img_list2->images_hash[i].count)) {
				return true;
			}
		}
	}

	return false;
}