1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
2646257d1SHeiko Schocher /*
3646257d1SHeiko Schocher * Copyright (c) 2013, Andreas Oetken.
4646257d1SHeiko Schocher */
5646257d1SHeiko Schocher
629a23f9dSHeiko Schocher #ifndef USE_HOSTCC
7646257d1SHeiko Schocher #include <common.h>
8646257d1SHeiko Schocher #include <fdtdec.h>
9646257d1SHeiko Schocher #include <asm/byteorder.h>
101221ce45SMasahiro Yamada #include <linux/errno.h>
11646257d1SHeiko Schocher #include <asm/unaligned.h>
12b37b46f0SRuchika Gupta #include <hash.h>
1329a23f9dSHeiko Schocher #else
1429a23f9dSHeiko Schocher #include "fdt_host.h"
15b37b46f0SRuchika Gupta #endif
16b37b46f0SRuchika Gupta #include <u-boot/rsa.h>
17646257d1SHeiko Schocher
hash_calculate(const char * name,const struct image_region region[],int region_count,uint8_t * checksum)18b37b46f0SRuchika Gupta int hash_calculate(const char *name,
19b37b46f0SRuchika Gupta const struct image_region region[],
20b37b46f0SRuchika Gupta int region_count, uint8_t *checksum)
21646257d1SHeiko Schocher {
22b37b46f0SRuchika Gupta struct hash_algo *algo;
23b37b46f0SRuchika Gupta int ret = 0;
24b37b46f0SRuchika Gupta void *ctx;
25646257d1SHeiko Schocher uint32_t i;
26646257d1SHeiko Schocher i = 0;
27646257d1SHeiko Schocher
28b37b46f0SRuchika Gupta ret = hash_progressive_lookup_algo(name, &algo);
29b37b46f0SRuchika Gupta if (ret)
30b37b46f0SRuchika Gupta return ret;
31b37b46f0SRuchika Gupta
32b37b46f0SRuchika Gupta ret = algo->hash_init(algo, &ctx);
33b37b46f0SRuchika Gupta if (ret)
34b37b46f0SRuchika Gupta return ret;
35b37b46f0SRuchika Gupta
36b37b46f0SRuchika Gupta for (i = 0; i < region_count - 1; i++) {
37b37b46f0SRuchika Gupta ret = algo->hash_update(algo, ctx, region[i].data,
38b37b46f0SRuchika Gupta region[i].size, 0);
39b37b46f0SRuchika Gupta if (ret)
40b37b46f0SRuchika Gupta return ret;
41646257d1SHeiko Schocher }
42646257d1SHeiko Schocher
43b37b46f0SRuchika Gupta ret = algo->hash_update(algo, ctx, region[i].data, region[i].size, 1);
44b37b46f0SRuchika Gupta if (ret)
45b37b46f0SRuchika Gupta return ret;
46b37b46f0SRuchika Gupta ret = algo->hash_finish(algo, ctx, checksum, algo->digest_size);
47b37b46f0SRuchika Gupta if (ret)
48b37b46f0SRuchika Gupta return ret;
49646257d1SHeiko Schocher
50b37b46f0SRuchika Gupta return 0;
51646257d1SHeiko Schocher }
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