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97 lines
3.4 KiB
C
97 lines
3.4 KiB
C
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/**
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* \file psa_util_internal.h
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*
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* \brief Internal utility functions for use of PSA Crypto.
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*/
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/*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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*/
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#ifndef MBEDTLS_PSA_UTIL_INTERNAL_H
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#define MBEDTLS_PSA_UTIL_INTERNAL_H
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/* Include the public header so that users only need one include. */
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#include "mbedtls/psa_util.h"
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#include "psa/crypto.h"
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#if defined(MBEDTLS_PSA_CRYPTO_C)
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/*************************************************************************
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* FFDH
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************************************************************************/
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#define MBEDTLS_PSA_MAX_FFDH_PUBKEY_LENGTH \
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PSA_KEY_EXPORT_FFDH_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_FFDH_MAX_KEY_BITS)
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/*************************************************************************
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* ECC
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************************************************************************/
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#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH \
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PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS)
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#define MBEDTLS_PSA_MAX_EC_KEY_PAIR_LENGTH \
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PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS)
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/*************************************************************************
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* Error translation
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************************************************************************/
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typedef struct {
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/* Error codes used by PSA crypto are in -255..-128, fitting in 16 bits. */
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int16_t psa_status;
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/* Error codes used by Mbed TLS are in one of the ranges
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* -127..-1 (low-level) or -32767..-4096 (high-level with a low-level
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* code optionally added), fitting in 16 bits. */
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int16_t mbedtls_error;
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} mbedtls_error_pair_t;
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#if defined(MBEDTLS_MD_LIGHT)
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extern const mbedtls_error_pair_t psa_to_md_errors[4];
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#endif
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#if defined(MBEDTLS_LMS_C)
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extern const mbedtls_error_pair_t psa_to_lms_errors[3];
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#endif
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#if defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_SSL_PROTO_TLS1_3)
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extern const mbedtls_error_pair_t psa_to_ssl_errors[7];
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#endif
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#if defined(PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY) || \
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defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_BASIC)
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extern const mbedtls_error_pair_t psa_to_pk_rsa_errors[8];
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#endif
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#if defined(MBEDTLS_USE_PSA_CRYPTO) && \
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defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
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extern const mbedtls_error_pair_t psa_to_pk_ecdsa_errors[7];
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#endif
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/* Generic fallback function for error translation,
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* when the received state was not module-specific. */
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int psa_generic_status_to_mbedtls(psa_status_t status);
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/* This function iterates over provided local error translations,
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* and if no match was found - calls the fallback error translation function. */
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int psa_status_to_mbedtls(psa_status_t status,
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const mbedtls_error_pair_t *local_translations,
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size_t local_errors_num,
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int (*fallback_f)(psa_status_t));
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/* The second out of three-stage error handling functions of the pk module,
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* acts as a fallback after RSA / ECDSA error translation, and if no match
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* is found, it itself calls psa_generic_status_to_mbedtls. */
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int psa_pk_status_to_mbedtls(psa_status_t status);
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/* Utility macro to shorten the defines of error translator in modules. */
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#define PSA_TO_MBEDTLS_ERR_LIST(status, error_list, fallback_f) \
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psa_status_to_mbedtls(status, error_list, \
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sizeof(error_list)/sizeof(error_list[0]), \
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fallback_f)
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#endif /* MBEDTLS_PSA_CRYPTO_C */
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#endif /* MBEDTLS_PSA_UTIL_INTERNAL_H */
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