1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 2013, Andreas Oetken. 4 */ 5 6 #ifndef USE_HOSTCC 7 #include <common.h> 8 #include <fdtdec.h> 9 #include <asm/byteorder.h> 10 #include <linux/errno.h> 11 #include <asm/unaligned.h> 12 #include <hash.h> 13 #else 14 #include "fdt_host.h" 15 #endif 16 #include <u-boot/rsa.h> 17 18 int hash_calculate(const char *name, 19 const struct image_region region[], 20 int region_count, uint8_t *checksum) 21 { 22 struct hash_algo *algo; 23 int ret = 0; 24 void *ctx; 25 uint32_t i; 26 i = 0; 27 28 ret = hash_progressive_lookup_algo(name, &algo); 29 if (ret) 30 return ret; 31 32 ret = algo->hash_init(algo, &ctx); 33 if (ret) 34 return ret; 35 36 for (i = 0; i < region_count - 1; i++) { 37 ret = algo->hash_update(algo, ctx, region[i].data, 38 region[i].size, 0); 39 if (ret) 40 return ret; 41 } 42 43 ret = algo->hash_update(algo, ctx, region[i].data, region[i].size, 1); 44 if (ret) 45 return ret; 46 ret = algo->hash_finish(algo, ctx, checksum, algo->digest_size); 47 if (ret) 48 return ret; 49 50 return 0; 51 } 52
