IABSD.fr/src/lib/libcrypto/crypto_init.c

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• Author : tb
  Date : 2024-01-13 17:04:29
  Hash : f7ac2552
  Message : Remove calls to OpenSSL_add_all_{ciphers,digests}()

• lib/libcrypto/crypto_init.c

• /*	$OpenBSD: crypto_init.c,v 1.17 2024/01/13 17:04:29 tb Exp $ */
  /*
   * Copyright (c) 2018 Bob Beck <beck@openbsd.org>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  /* OpenSSL style init */
  
  #include <pthread.h>
  #include <stdio.h>
  
  #include <openssl/asn1.h>
  #include <openssl/conf.h>
  #include <openssl/err.h>
  #include <openssl/evp.h>
  #include <openssl/objects.h>
  #include <openssl/x509v3.h>
  
  #include "cryptlib.h"
  #include "x509_issuer_cache.h"
  
  int OpenSSL_config(const char *);
  int OpenSSL_no_config(void);
  
  static pthread_once_t crypto_init_once = PTHREAD_ONCE_INIT;
  static pthread_t crypto_init_thread;
  static int crypto_init_cleaned_up;
  
  static void
  OPENSSL_init_crypto_internal(void)
  {
  	crypto_init_thread = pthread_self();
  
  	OPENSSL_cpuid_setup();
  	ERR_load_crypto_strings();
  }
  
  int
  OPENSSL_init_crypto(uint64_t opts, const void *settings)
  {
  	if (crypto_init_cleaned_up) {
  		CRYPTOerror(ERR_R_INIT_FAIL);
  		return 0;
  	}
  
  	if (pthread_equal(pthread_self(), crypto_init_thread))
  		return 1; /* don't recurse */
  
  	if (pthread_once(&crypto_init_once, OPENSSL_init_crypto_internal) != 0)
  		return 0;
  
  	if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG) &&
  	    (OpenSSL_no_config() == 0))
  		return 0;
  
  	if ((opts & OPENSSL_INIT_LOAD_CONFIG) &&
  	    (OpenSSL_config(NULL) == 0))
  		return 0;
  
  	return 1;
  }
  LCRYPTO_ALIAS(OPENSSL_init_crypto);
  
  void
  OPENSSL_cleanup(void)
  {
  	/* This currently calls init... */
  	ERR_free_strings();
  
  	CRYPTO_cleanup_all_ex_data();
  	EVP_cleanup();
  
  	X509V3_EXT_cleanup();
  	X509_VERIFY_PARAM_table_cleanup();
  
  	x509_issuer_cache_free();
  
  	crypto_init_cleaned_up = 1;
  }
  LCRYPTO_ALIAS(OPENSSL_cleanup);
  
  void
  OpenSSL_add_all_ciphers(void)
  {
  }
  
  void
  OpenSSL_add_all_digests(void)
  {
  }
  
  void
  OPENSSL_add_all_algorithms_noconf(void)
  {
  }
  
  void
  OPENSSL_add_all_algorithms_conf(void)
  {
  	OPENSSL_config(NULL);
  }