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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2013, Google Inc.
*/
#ifdef USE_HOSTCC
#include "mkimage.h"
#include <fdt_support.h>
#include <time.h>
#include <linux/libfdt.h>
#else
#include <common.h>
#include <log.h>
#include <malloc.h>
DECLARE_GLOBAL_DATA_PTR;
#endif /* !USE_HOSTCC*/
#include <image.h>
#include <u-boot/rsa.h>
#include <u-boot/rsa-checksum.h>
#define IMAGE_MAX_HASHED_NODES 100
struct checksum_algo checksum_algos[] = {
{
.name = "sha1",
.checksum_len = SHA1_SUM_LEN,
.der_len = SHA1_DER_LEN,
.der_prefix = sha1_der_prefix,
#if IMAGE_ENABLE_SIGN
.calculate_sign = EVP_sha1,
#endif
.calculate = hash_calculate,
},
{
.name = "sha256",
.checksum_len = SHA256_SUM_LEN,
.der_len = SHA256_DER_LEN,
.der_prefix = sha256_der_prefix,
#if IMAGE_ENABLE_SIGN
.calculate_sign = EVP_sha256,
#endif
.calculate = hash_calculate,
},
#ifdef CONFIG_SHA384
{
.name = "sha384",
.checksum_len = SHA384_SUM_LEN,
.der_len = SHA384_DER_LEN,
.der_prefix = sha384_der_prefix,
#if IMAGE_ENABLE_SIGN
.calculate_sign = EVP_sha384,
#endif
.calculate = hash_calculate,
},
#endif
#ifdef CONFIG_SHA512
{
.name = "sha512",
.checksum_len = SHA512_SUM_LEN,
.der_len = SHA512_DER_LEN,
.der_prefix = sha512_der_prefix,
#if IMAGE_ENABLE_SIGN
.calculate_sign = EVP_sha512,
#endif
.calculate = hash_calculate,
},
#endif
};
struct crypto_algo crypto_algos[] = {
{
.name = "rsa2048",
.key_len = RSA2048_BYTES,
.sign = rsa_sign,
.add_verify_data = rsa_add_verify_data,
.verify = rsa_verify,
},
{
.name = "rsa4096",
.key_len = RSA4096_BYTES,
.sign = rsa_sign,
.add_verify_data = rsa_add_verify_data,
.verify = rsa_verify,
}
};
struct padding_algo padding_algos[] = {
{
.name = "pkcs-1.5",
.verify = padding_pkcs_15_verify,
},
#ifdef CONFIG_FIT_ENABLE_RSASSA_PSS_SUPPORT
{
.name = "pss",
.verify = padding_pss_verify,
}
#endif /* CONFIG_FIT_ENABLE_RSASSA_PSS_SUPPORT */
};
struct checksum_algo *image_get_checksum_algo(const char *full_name)
{
int i;
const char *name;
#if !defined(USE_HOSTCC) && defined(CONFIG_NEEDS_MANUAL_RELOC)
static bool done;
if (!done) {
done = true;
for (i = 0; i < ARRAY_SIZE(checksum_algos); i++) {
checksum_algos[i].name += gd->reloc_off;
#if IMAGE_ENABLE_SIGN
checksum_algos[i].calculate_sign += gd->reloc_off;
#endif
checksum_algos[i].calculate += gd->reloc_off;
}
}
#endif
for (i = 0; i < ARRAY_SIZE(checksum_algos); i++) {
name = checksum_algos[i].name;
/* Make sure names match and next char is a comma */
if (!strncmp(name, full_name, strlen(name)) &&
full_name[strlen(name)] == ',')
return &checksum_algos[i];
}
return NULL;
}
struct crypto_algo *image_get_crypto_algo(const char *full_name)
{
int i;
const char *name;
#if !defined(USE_HOSTCC) && defined(CONFIG_NEEDS_MANUAL_RELOC)
static bool done;
if (!done) {
done = true;
for (i = 0; i < ARRAY_SIZE(crypto_algos); i++) {
crypto_algos[i].name += gd->reloc_off;
crypto_algos[i].sign += gd->reloc_off;
crypto_algos[i].add_verify_data += gd->reloc_off;
crypto_algos[i].verify += gd->reloc_off;
}
}
#endif
/* Move name to after the comma */
name = strchr(full_name, ',');
if (!name)
return NULL;
name += 1;
for (i = 0; i < ARRAY_SIZE(crypto_algos); i++) {
if (!strcmp(crypto_algos[i].name, name))
return &crypto_algos[i];
}
return NULL;
}
struct padding_algo *image_get_padding_algo(const char *name)
{
int i;
if (!name)
return NULL;
for (i = 0; i < ARRAY_SIZE(padding_algos); i++) {
if (!strcmp(padding_algos[i].name, name))
return &padding_algos[i];
}
return NULL;
}
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