/* $NetBSD: openssl_shim.c,v 1.1.4.2 2024/02/29 11:39:01 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, you can obtain one at https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ #include #include #include #include #include #include #include #include #include #include "openssl_shim.h" #if !HAVE_CRYPTO_ZALLOC void * CRYPTO_zalloc(size_t num, const char *file, int line) { void *ret = CRYPTO_malloc(num, file, line); if (ret != NULL) { memset(ret, 0, num); } return (ret); } #endif /* if !HAVE_CRYPTO_ZALLOC */ #if !HAVE_EVP_CIPHER_CTX_NEW EVP_CIPHER_CTX * EVP_CIPHER_CTX_new(void) { EVP_CIPHER_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx)); return (ctx); } #endif /* if !HAVE_EVP_CIPHER_CTX_NEW */ #if !HAVE_EVP_CIPHER_CTX_FREE void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *ctx) { if (ctx != NULL) { EVP_CIPHER_CTX_cleanup(ctx); OPENSSL_free(ctx); } } #endif /* if !HAVE_EVP_CIPHER_CTX_FREE */ #if !HAVE_EVP_MD_CTX_NEW EVP_MD_CTX * EVP_MD_CTX_new(void) { EVP_MD_CTX *ctx = OPENSSL_malloc(sizeof(*ctx)); if (ctx != NULL) { memset(ctx, 0, sizeof(*ctx)); } return (ctx); } #endif /* if !HAVE_EVP_MD_CTX_NEW */ #if !HAVE_EVP_MD_CTX_FREE void EVP_MD_CTX_free(EVP_MD_CTX *ctx) { if (ctx != NULL) { EVP_MD_CTX_cleanup(ctx); OPENSSL_free(ctx); } } #endif /* if !HAVE_EVP_MD_CTX_FREE */ #if !HAVE_EVP_MD_CTX_RESET int EVP_MD_CTX_reset(EVP_MD_CTX *ctx) { return (EVP_MD_CTX_cleanup(ctx)); } #endif /* if !HAVE_EVP_MD_CTX_RESET */ #if !HAVE_HMAC_CTX_NEW HMAC_CTX * HMAC_CTX_new(void) { HMAC_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx)); if (ctx != NULL) { if (!HMAC_CTX_reset(ctx)) { HMAC_CTX_free(ctx); return (NULL); } } return (ctx); } #endif /* if !HAVE_HMAC_CTX_NEW */ #if !HAVE_HMAC_CTX_FREE void HMAC_CTX_free(HMAC_CTX *ctx) { if (ctx != NULL) { HMAC_CTX_cleanup(ctx); OPENSSL_free(ctx); } } #endif /* if !HAVE_HMAC_CTX_FREE */ #if !HAVE_HMAC_CTX_RESET int HMAC_CTX_reset(HMAC_CTX *ctx) { HMAC_CTX_cleanup(ctx); return (1); } #endif /* if !HAVE_HMAC_CTX_RESET */ #if !HAVE_HMAC_CTX_GET_MD const EVP_MD * HMAC_CTX_get_md(const HMAC_CTX *ctx) { return (ctx->md); } #endif /* if !HAVE_HMAC_CTX_GET_MD */ #if !HAVE_SSL_READ_EX int SSL_read_ex(SSL *ssl, void *buf, size_t num, size_t *readbytes) { int rv = SSL_read(ssl, buf, num); if (rv > 0) { *readbytes = rv; rv = 1; } return (rv); } #endif #if !HAVE_SSL_PEEK_EX int SSL_peek_ex(SSL *ssl, void *buf, size_t num, size_t *readbytes) { int rv = SSL_peek(ssl, buf, num); if (rv > 0) { *readbytes = rv; rv = 1; } return (rv); } #endif #if !HAVE_SSL_WRITE_EX int SSL_write_ex(SSL *ssl, const void *buf, size_t num, size_t *written) { int rv = SSL_write(ssl, buf, num); if (rv > 0) { *written = rv; rv = 1; } return (rv); } #endif #if !HAVE_BIO_READ_EX int BIO_read_ex(BIO *b, void *data, size_t dlen, size_t *readbytes) { int rv = BIO_read(b, data, dlen); if (rv > 0) { *readbytes = rv; rv = 1; } return (rv); } #endif #if !HAVE_BIO_WRITE_EX int BIO_write_ex(BIO *b, const void *data, size_t dlen, size_t *written) { int rv = BIO_write(b, data, dlen); if (rv > 0) { *written = rv; rv = 1; } return (rv); } #endif #if !HAVE_OPENSSL_INIT_CRYPTO int OPENSSL_init_crypto(uint64_t opts, const void *settings) { (void)settings; if ((opts & OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS) == 0) { ERR_load_crypto_strings(); } if ((opts & (OPENSSL_INIT_NO_ADD_ALL_CIPHERS | OPENSSL_INIT_NO_ADD_ALL_CIPHERS)) == 0) { OpenSSL_add_all_algorithms(); } else if ((opts & OPENSSL_INIT_NO_ADD_ALL_CIPHERS) == 0) { OpenSSL_add_all_digests(); } else if ((opts & OPENSSL_INIT_NO_ADD_ALL_CIPHERS) == 0) { OpenSSL_add_all_ciphers(); } return (1); } #endif #if !HAVE_OPENSSL_INIT_SSL int OPENSSL_init_ssl(uint64_t opts, const void *settings) { OPENSSL_init_crypto(opts, settings); SSL_library_init(); if ((opts & OPENSSL_INIT_NO_LOAD_SSL_STRINGS) == 0) { SSL_load_error_strings(); } return (1); } #endif #if !HAVE_OPENSSL_CLEANUP void OPENSSL_cleanup(void) { return; } #endif