/*
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* Copyright (c) 2013, Andreas Oetken.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef USE_HOSTCC
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#include <common.h>
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#include <crypto.h>
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#include <fdtdec.h>
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#include <asm/byteorder.h>
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#include <linux/errno.h>
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#include <asm/unaligned.h>
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#include <hash.h>
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#else
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#include "fdt_host.h"
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#endif
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#include <u-boot/rsa.h>
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int rsa_hash_calculate(const char *name,
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const struct image_region region[],
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int region_count, uint8_t *checksum)
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{
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struct hash_algo *algo;
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int ret = 0;
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void *ctx;
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uint32_t i;
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i = 0;
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ret = hash_progressive_lookup_algo(name, &algo);
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if (ret)
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return ret;
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ret = algo->hash_init(algo, &ctx);
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if (ret)
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return ret;
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for (i = 0; i < region_count - 1; i++) {
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ret = algo->hash_update(algo, ctx, region[i].data,
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region[i].size, 0);
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if (ret)
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return ret;
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}
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ret = algo->hash_update(algo, ctx, region[i].data, region[i].size, 1);
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if (ret)
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return ret;
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ret = algo->hash_finish(algo, ctx, checksum, algo->digest_size);
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if (ret)
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return ret;
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return 0;
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}
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#if !defined(USE_HOSTCC)
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#if CONFIG_IS_ENABLED(FIT_HW_CRYPTO)
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int hw_rsa_hash_calculate(const char *name,
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const struct image_region region[],
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int region_count, uint8_t *checksum)
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{
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struct udevice *dev;
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sha_context ctx;
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if (!name)
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return -EINVAL;
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if (!strcmp(name, "sha1"))
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ctx.algo = CRYPTO_SHA1;
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else if (!strcmp(name, "sha256"))
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ctx.algo = CRYPTO_SHA256;
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else
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return -EPERM;
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dev = crypto_get_device(ctx.algo);
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if (!dev) {
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printf("No crypto device for expected capability\n");
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return -ENODEV;
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}
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return crypto_sha_regions_csum(dev, &ctx, region,
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region_count, checksum);
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}
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#endif
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#endif
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int hash_calculate(const char *name,
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const struct image_region region[],
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int region_count, uint8_t *checksum)
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{
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#if defined(USE_HOSTCC)
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return rsa_hash_calculate(name, region, region_count, checksum);
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#else
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#if !CONFIG_IS_ENABLED(FIT_HW_CRYPTO)
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return rsa_hash_calculate(name, region, region_count, checksum);
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#else
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return hw_rsa_hash_calculate(name, region, region_count, checksum);
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#endif
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#endif
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}
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