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/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
*/
/**
* \file mps_error.h
*
* \brief Error codes used by MPS
*/
#ifndef MBEDTLS_MPS_ERROR_H
#define MBEDTLS_MPS_ERROR_H
/* TODO: The error code allocation needs to be revisited:
*
* - Should we make (some of) the MPS Reader error codes public?
* If so, we need to adjust MBEDTLS_MPS_READER_MAKE_ERROR() to hit
* a gap in the Mbed TLS public error space.
* If not, we have to make sure we don't forward those errors
* at the level of the public API -- no risk at the moment as
* long as MPS is an experimental component not accessible from
* public API.
*/
/**
* \name SECTION: MPS general error codes
*
* \{
*/
#ifndef MBEDTLS_MPS_ERR_BASE
#define MBEDTLS_MPS_ERR_BASE (0)
#endif
#define MBEDTLS_MPS_MAKE_ERROR(code) \
(-(MBEDTLS_MPS_ERR_BASE | (code)))
#define MBEDTLS_ERR_MPS_OPERATION_UNEXPECTED MBEDTLS_MPS_MAKE_ERROR(0x1)
#define MBEDTLS_ERR_MPS_INTERNAL_ERROR MBEDTLS_MPS_MAKE_ERROR(0x2)
/* \} name SECTION: MPS general error codes */
/**
* \name SECTION: MPS Reader error codes
*
* \{
*/
#ifndef MBEDTLS_MPS_READER_ERR_BASE
#define MBEDTLS_MPS_READER_ERR_BASE (1 << 8)
#endif
#define MBEDTLS_MPS_READER_MAKE_ERROR(code) \
(-(MBEDTLS_MPS_READER_ERR_BASE | (code)))
/*! An attempt to reclaim the data buffer from a reader failed because
* the user hasn't yet read and committed all of it. */
#define MBEDTLS_ERR_MPS_READER_DATA_LEFT MBEDTLS_MPS_READER_MAKE_ERROR(0x1)
/*! An invalid argument was passed to the reader. */
#define MBEDTLS_ERR_MPS_READER_INVALID_ARG MBEDTLS_MPS_READER_MAKE_ERROR(0x2)
/*! An attempt to move a reader to consuming mode through mbedtls_mps_reader_feed()
* after pausing failed because the provided data is not sufficient to serve the
* read requests that led to the pausing. */
#define MBEDTLS_ERR_MPS_READER_NEED_MORE MBEDTLS_MPS_READER_MAKE_ERROR(0x3)
/*! A get request failed because not enough data is available in the reader. */
#define MBEDTLS_ERR_MPS_READER_OUT_OF_DATA MBEDTLS_MPS_READER_MAKE_ERROR(0x4)
/*!< A get request after pausing and reactivating the reader failed because
* the request is not in line with the request made prior to pausing. The user
* must not change it's 'strategy' after pausing and reactivating a reader. */
#define MBEDTLS_ERR_MPS_READER_INCONSISTENT_REQUESTS MBEDTLS_MPS_READER_MAKE_ERROR(0x5)
/*! An attempt to reclaim the data buffer from a reader failed because the reader
* has no accumulator it can use to backup the data that hasn't been processed. */
#define MBEDTLS_ERR_MPS_READER_NEED_ACCUMULATOR MBEDTLS_MPS_READER_MAKE_ERROR(0x6)
/*! An attempt to reclaim the data buffer from a reader failed because the
* accumulator passed to the reader is not large enough to hold both the
* data that hasn't been processed and the excess of the last read-request. */
#define MBEDTLS_ERR_MPS_READER_ACCUMULATOR_TOO_SMALL MBEDTLS_MPS_READER_MAKE_ERROR(0x7)
/* \} name SECTION: MPS Reader error codes */
#endif /* MBEDTLS_MPS_ERROR_H */
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