blob: 0421a61b0406640b158f49ba06acec213a1ae60b [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Simon Glass58fe7e52013-06-13 15:10:00 -07002/*
3 * Copyright (c) 2013, Google Inc.
Simon Glass58fe7e52013-06-13 15:10:00 -07004 */
5
Tom Riniabb9a042024-05-18 20:20:43 -06006#include <common.h>
Simon Glass0f2af882020-05-10 11:40:05 -06007#include <log.h>
Simon Glassfbabc0f2013-06-13 15:10:01 -07008#include <malloc.h>
Simon Glass3ba929a2020-10-30 21:38:53 -06009#include <asm/global_data.h>
Simon Glassfbabc0f2013-06-13 15:10:01 -070010DECLARE_GLOBAL_DATA_PTR;
Simon Glass58fe7e52013-06-13 15:10:00 -070011#include <image.h>
Simon Glass48a1b682021-09-25 07:03:19 -060012#include <relocate.h>
Alexandru Gagniuc3ebd2002021-02-19 12:45:12 -060013#include <u-boot/ecdsa.h>
Jeroen Hofsteebfe88fe2014-06-12 22:27:12 +020014#include <u-boot/rsa.h>
Alexandru Gagniucdb182c42021-02-19 12:45:10 -060015#include <u-boot/hash-checksum.h>
Simon Glass58fe7e52013-06-13 15:10:00 -070016
Simon Glass56ab8d62013-06-13 15:10:09 -070017#define IMAGE_MAX_HASHED_NODES 100
18
Heiko Schocheredaf9b12014-03-03 12:19:26 +010019struct checksum_algo checksum_algos[] = {
Sean Anderson70481212024-02-15 12:12:18 -050020#if CONFIG_IS_ENABLED(SHA1)
Heiko Schocheredaf9b12014-03-03 12:19:26 +010021 {
Masahiro Yamada79f3c592017-10-23 10:03:40 +090022 .name = "sha1",
23 .checksum_len = SHA1_SUM_LEN,
24 .der_len = SHA1_DER_LEN,
25 .der_prefix = sha1_der_prefix,
Masahiro Yamada79f3c592017-10-23 10:03:40 +090026 .calculate = hash_calculate,
Heiko Schocheredaf9b12014-03-03 12:19:26 +010027 },
Sean Anderson70481212024-02-15 12:12:18 -050028#endif
29#if CONFIG_IS_ENABLED(SHA256)
Heiko Schocheredaf9b12014-03-03 12:19:26 +010030 {
Masahiro Yamada79f3c592017-10-23 10:03:40 +090031 .name = "sha256",
32 .checksum_len = SHA256_SUM_LEN,
33 .der_len = SHA256_DER_LEN,
34 .der_prefix = sha256_der_prefix,
Masahiro Yamada79f3c592017-10-23 10:03:40 +090035 .calculate = hash_calculate,
Reuben Dowle1908fd92020-04-16 17:36:52 +120036 },
Sean Anderson70481212024-02-15 12:12:18 -050037#endif
38#if CONFIG_IS_ENABLED(SHA384)
Reuben Dowle1908fd92020-04-16 17:36:52 +120039 {
40 .name = "sha384",
41 .checksum_len = SHA384_SUM_LEN,
42 .der_len = SHA384_DER_LEN,
43 .der_prefix = sha384_der_prefix,
Reuben Dowle1908fd92020-04-16 17:36:52 +120044 .calculate = hash_calculate,
45 },
46#endif
Sean Anderson70481212024-02-15 12:12:18 -050047#if CONFIG_IS_ENABLED(SHA512)
Reuben Dowle1908fd92020-04-16 17:36:52 +120048 {
49 .name = "sha512",
50 .checksum_len = SHA512_SUM_LEN,
51 .der_len = SHA512_DER_LEN,
52 .der_prefix = sha512_der_prefix,
Reuben Dowle1908fd92020-04-16 17:36:52 +120053 .calculate = hash_calculate,
54 },
55#endif
Andrew Duda06ca6d62016-11-08 18:53:41 +000056
57};
58
Andrew Duda6616c822016-11-08 18:53:41 +000059struct checksum_algo *image_get_checksum_algo(const char *full_name)
60{
61 int i;
62 const char *name;
63
64 for (i = 0; i < ARRAY_SIZE(checksum_algos); i++) {
65 name = checksum_algos[i].name;
66 /* Make sure names match and next char is a comma */
67 if (!strncmp(name, full_name, strlen(name)) &&
68 full_name[strlen(name)] == ',')
69 return &checksum_algos[i];
Simon Glass35191a32013-06-13 15:10:02 -070070 }
Heiko Schocher4b817562014-03-03 12:19:27 +010071
Andrew Duda6616c822016-11-08 18:53:41 +000072 return NULL;
73}
Simon Glass58fe7e52013-06-13 15:10:00 -070074
Andrew Duda6616c822016-11-08 18:53:41 +000075struct crypto_algo *image_get_crypto_algo(const char *full_name)
Simon Glass58fe7e52013-06-13 15:10:00 -070076{
Alexandru Gagniucb04e9182021-07-14 17:05:39 -050077 struct crypto_algo *crypto, *end;
Andrew Duda6616c822016-11-08 18:53:41 +000078 const char *name;
79
80 /* Move name to after the comma */
81 name = strchr(full_name, ',');
82 if (!name)
83 return NULL;
84 name += 1;
Simon Glass58fe7e52013-06-13 15:10:00 -070085
Alexandru Gagniucb04e9182021-07-14 17:05:39 -050086 crypto = ll_entry_start(struct crypto_algo, cryptos);
87 end = ll_entry_end(struct crypto_algo, cryptos);
88 for (; crypto < end; crypto++) {
89 if (!strcmp(crypto->name, name))
90 return crypto;
91 }
92
93 /* Not found */
Simon Glass58fe7e52013-06-13 15:10:00 -070094 return NULL;
95}
Simon Glassfbabc0f2013-06-13 15:10:01 -070096
Philippe Reynes12468352018-11-14 13:51:00 +010097struct padding_algo *image_get_padding_algo(const char *name)
98{
Alexandru Gagniucf3b5e582021-08-18 17:49:02 -050099 struct padding_algo *padding, *end;
Philippe Reynes12468352018-11-14 13:51:00 +0100100
101 if (!name)
102 return NULL;
103
Alexandru Gagniucf3b5e582021-08-18 17:49:02 -0500104 padding = ll_entry_start(struct padding_algo, paddings);
105 end = ll_entry_end(struct padding_algo, paddings);
106 for (; padding < end; padding++) {
107 if (!strcmp(padding->name, name))
108 return padding;
Philippe Reynes12468352018-11-14 13:51:00 +0100109 }
110
111 return NULL;
112}