| /** Helper functions for tests that manipulate ASN.1 data. |
| */ |
| /* |
| * Copyright The Mbed TLS Contributors |
| * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later |
| */ |
| |
| #ifndef ASN1_HELPERS_H |
| #define ASN1_HELPERS_H |
| |
| #include "test/helpers.h" |
| |
| /** Skip past an INTEGER in an ASN.1 buffer. |
| * |
| * Mark the current test case as failed in any of the following conditions: |
| * - The buffer does not start with an ASN.1 INTEGER. |
| * - The integer's size or parity does not match the constraints expressed |
| * through \p min_bits, \p max_bits and \p must_be_odd. |
| * |
| * \param p Upon entry, `*p` points to the first byte of the |
| * buffer to parse. |
| * On successful return, `*p` points to the first byte |
| * after the parsed INTEGER. |
| * On failure, `*p` is unspecified. |
| * \param end The end of the ASN.1 buffer. |
| * \param min_bits Fail the test case if the integer does not have at |
| * least this many significant bits. |
| * \param max_bits Fail the test case if the integer has more than |
| * this many significant bits. |
| * \param must_be_odd Fail the test case if the integer is even. |
| * |
| * \return \c 0 if the test failed, otherwise 1. |
| */ |
| int mbedtls_test_asn1_skip_integer(unsigned char **p, const unsigned char *end, |
| size_t min_bits, size_t max_bits, |
| int must_be_odd); |
| |
| #endif /* ASN1_HELPERS_H */ |