mirror of
https://gitlab.isc.org/isc-projects/bind9
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This commit converts the license handling to adhere to the REUSE specification. It specifically: 1. Adds used licnses to LICENSES/ directory 2. Add "isc" template for adding the copyright boilerplate 3. Changes all source files to include copyright and SPDX license header, this includes all the C sources, documentation, zone files, configuration files. There are notes in the doc/dev/copyrights file on how to add correct headers to the new files. 4. Handle the rest that can't be modified via .reuse/dep5 file. The binary (or otherwise unmodifiable) files could have license places next to them in <foo>.license file, but this would lead to cluttered repository and most of the files handled in the .reuse/dep5 file are system test files.
215 lines
5.2 KiB
C
215 lines
5.2 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0 AND ISC
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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/*
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* Copyright (C) Network Associates, Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NETWORK ASSOCIATES DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE
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* FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <isc/mem.h>
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#include <isc/mutex.h>
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#include <isc/mutexblock.h>
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#include <isc/result.h>
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#include <isc/string.h>
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#include <isc/thread.h>
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#include <isc/tls.h>
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#include <isc/util.h>
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#include <dns/log.h>
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#include "dst_internal.h"
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#include "dst_openssl.h"
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#if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000
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#include <openssl/engine.h>
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#endif /* if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000 */
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#include "openssl_shim.h"
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#if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000
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static ENGINE *e = NULL;
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#endif /* if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000 */
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static void
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enable_fips_mode(void) {
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#ifdef HAVE_FIPS_MODE
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if (FIPS_mode() != 0) {
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/*
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* FIPS mode is already enabled.
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*/
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return;
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}
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if (FIPS_mode_set(1) == 0) {
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dst__openssl_toresult2("FIPS_mode_set", DST_R_OPENSSLFAILURE);
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exit(1);
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}
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#endif /* HAVE_FIPS_MODE */
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}
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isc_result_t
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dst__openssl_init(const char *engine) {
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isc_result_t result = ISC_R_SUCCESS;
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enable_fips_mode();
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#if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000
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if (engine != NULL && *engine == '\0') {
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engine = NULL;
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}
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if (engine != NULL) {
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e = ENGINE_by_id(engine);
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if (e == NULL) {
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result = DST_R_NOENGINE;
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goto cleanup_rm;
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}
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/* This will init the engine. */
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if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) {
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result = DST_R_NOENGINE;
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goto cleanup_rm;
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}
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}
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return (ISC_R_SUCCESS);
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cleanup_rm:
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if (e != NULL) {
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ENGINE_free(e);
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}
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e = NULL;
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#else
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UNUSED(engine);
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#endif /* if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000 */
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return (result);
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}
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void
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dst__openssl_destroy(void) {
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#if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000
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if (e != NULL) {
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ENGINE_free(e);
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}
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e = NULL;
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#endif /* if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000 */
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}
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static isc_result_t
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toresult(isc_result_t fallback) {
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isc_result_t result = fallback;
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unsigned long err = ERR_peek_error();
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#if defined(ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED)
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int lib = ERR_GET_LIB(err);
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#endif /* if defined(ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED) */
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int reason = ERR_GET_REASON(err);
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switch (reason) {
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/*
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* ERR_* errors are globally unique; others
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* are unique per sublibrary
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*/
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case ERR_R_MALLOC_FAILURE:
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result = ISC_R_NOMEMORY;
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break;
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default:
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#if defined(ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED)
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if (lib == ERR_R_ECDSA_LIB &&
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reason == ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED) {
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result = ISC_R_NOENTROPY;
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break;
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}
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#endif /* if defined(ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED) */
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break;
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}
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return (result);
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}
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isc_result_t
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dst__openssl_toresult(isc_result_t fallback) {
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isc_result_t result;
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result = toresult(fallback);
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ERR_clear_error();
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return (result);
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}
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isc_result_t
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dst__openssl_toresult2(const char *funcname, isc_result_t fallback) {
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return (dst__openssl_toresult3(DNS_LOGCATEGORY_GENERAL, funcname,
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fallback));
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}
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isc_result_t
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dst__openssl_toresult3(isc_logcategory_t *category, const char *funcname,
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isc_result_t fallback) {
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isc_result_t result;
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unsigned long err;
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const char *file, *func, *data;
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int line, flags;
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char buf[256];
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result = toresult(fallback);
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isc_log_write(dns_lctx, category, DNS_LOGMODULE_CRYPTO, ISC_LOG_WARNING,
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"%s failed (%s)", funcname, isc_result_totext(result));
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if (result == ISC_R_NOMEMORY) {
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goto done;
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}
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for (;;) {
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err = ERR_get_error_all(&file, &line, &func, &data, &flags);
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if (err == 0U) {
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goto done;
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}
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ERR_error_string_n(err, buf, sizeof(buf));
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isc_log_write(dns_lctx, category, DNS_LOGMODULE_CRYPTO,
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ISC_LOG_INFO, "%s:%s:%d:%s", buf, file, line,
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((flags & ERR_TXT_STRING) != 0) ? data : "");
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}
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done:
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ERR_clear_error();
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return (result);
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}
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#if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000
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ENGINE *
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dst__openssl_getengine(const char *engine) {
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if (engine == NULL) {
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return (NULL);
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}
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if (e == NULL) {
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return (NULL);
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}
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if (strcmp(engine, ENGINE_get_id(e)) == 0) {
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return (e);
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}
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return (NULL);
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}
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#endif /* if !defined(OPENSSL_NO_ENGINE) && OPENSSL_API_LEVEL < 30000 */
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/*! \file */
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