1 /* 2 * Copyright The Mbed TLS Contributors 3 * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later 4 */ 5 6 /** 7 * \file mps_error.h 8 * 9 * \brief Error codes used by MPS 10 */ 11 12 #ifndef MBEDTLS_MPS_ERROR_H 13 #define MBEDTLS_MPS_ERROR_H 14 15 16 /* TODO: The error code allocation needs to be revisited: 17 * 18 * - Should we make (some of) the MPS Reader error codes public? 19 * If so, we need to adjust MBEDTLS_MPS_READER_MAKE_ERROR() to hit 20 * a gap in the Mbed TLS public error space. 21 * If not, we have to make sure we don't forward those errors 22 * at the level of the public API -- no risk at the moment as 23 * long as MPS is an experimental component not accessible from 24 * public API. 25 */ 26 27 /** 28 * \name SECTION: MPS general error codes 29 * 30 * \{ 31 */ 32 33 #ifndef MBEDTLS_MPS_ERR_BASE 34 #define MBEDTLS_MPS_ERR_BASE (0) 35 #endif 36 37 #define MBEDTLS_MPS_MAKE_ERROR(code) \ 38 (-(MBEDTLS_MPS_ERR_BASE | (code))) 39 40 #define MBEDTLS_ERR_MPS_OPERATION_UNEXPECTED MBEDTLS_MPS_MAKE_ERROR(0x1) 41 #define MBEDTLS_ERR_MPS_INTERNAL_ERROR MBEDTLS_MPS_MAKE_ERROR(0x2) 42 43 /* \} name SECTION: MPS general error codes */ 44 45 /** 46 * \name SECTION: MPS Reader error codes 47 * 48 * \{ 49 */ 50 51 #ifndef MBEDTLS_MPS_READER_ERR_BASE 52 #define MBEDTLS_MPS_READER_ERR_BASE (1 << 8) 53 #endif 54 55 #define MBEDTLS_MPS_READER_MAKE_ERROR(code) \ 56 (-(MBEDTLS_MPS_READER_ERR_BASE | (code))) 57 58 /*! An attempt to reclaim the data buffer from a reader failed because 59 * the user hasn't yet read and committed all of it. */ 60 #define MBEDTLS_ERR_MPS_READER_DATA_LEFT MBEDTLS_MPS_READER_MAKE_ERROR(0x1) 61 62 /*! An invalid argument was passed to the reader. */ 63 #define MBEDTLS_ERR_MPS_READER_INVALID_ARG MBEDTLS_MPS_READER_MAKE_ERROR(0x2) 64 65 /*! An attempt to move a reader to consuming mode through mbedtls_mps_reader_feed() 66 * after pausing failed because the provided data is not sufficient to serve the 67 * read requests that led to the pausing. */ 68 #define MBEDTLS_ERR_MPS_READER_NEED_MORE MBEDTLS_MPS_READER_MAKE_ERROR(0x3) 69 70 /*! A get request failed because not enough data is available in the reader. */ 71 #define MBEDTLS_ERR_MPS_READER_OUT_OF_DATA MBEDTLS_MPS_READER_MAKE_ERROR(0x4) 72 73 /*!< A get request after pausing and reactivating the reader failed because 74 * the request is not in line with the request made prior to pausing. The user 75 * must not change it's 'strategy' after pausing and reactivating a reader. */ 76 #define MBEDTLS_ERR_MPS_READER_INCONSISTENT_REQUESTS MBEDTLS_MPS_READER_MAKE_ERROR(0x5) 77 78 /*! An attempt to reclaim the data buffer from a reader failed because the reader 79 * has no accumulator it can use to backup the data that hasn't been processed. */ 80 #define MBEDTLS_ERR_MPS_READER_NEED_ACCUMULATOR MBEDTLS_MPS_READER_MAKE_ERROR(0x6) 81 82 /*! An attempt to reclaim the data buffer from a reader failed because the 83 * accumulator passed to the reader is not large enough to hold both the 84 * data that hasn't been processed and the excess of the last read-request. */ 85 #define MBEDTLS_ERR_MPS_READER_ACCUMULATOR_TOO_SMALL MBEDTLS_MPS_READER_MAKE_ERROR(0x7) 86 87 /* \} name SECTION: MPS Reader error codes */ 88 89 #endif /* MBEDTLS_MPS_ERROR_H */ 90
