/*
* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Thread setup portions of this code derived from
* OpenSSL 0.9.x file mt/mttest.c examples
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <libintl.h>
#include <synch.h>
#include <thread.h>
#include <dlfcn.h>
#include <openssl/lhash.h>
#include <openssl/crypto.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include "ipsec_util.h"
/* OpenSSL function pointers */
static X509_NAME *(*d2i_X509_NAME_fn)() = NULL;
static int (*X509_NAME_print_ex_fp_fn)() = NULL;
static char *(*ERR_get_error_fn)() = NULL;
static char *(*ERR_error_string_fn)() = NULL;
static void (*SSL_load_error_strings_fn)() = NULL;
static void (*ERR_free_strings_fn)() = NULL;
static void (*CRYPTO_set_locking_callback_fn)() = NULL;
static void (*CRYPTO_set_id_callback_fn)() = NULL;
static void (*X509_NAME_free_fn)() = NULL;
static int (*CRYPTO_num_locks_fn)() = NULL;
static void *(*OPENSSL_malloc_fn)() = NULL;
static void (*OPENSSL_free_fn)() = NULL;
static void solaris_locking_callback(int, int, char *, int);
static unsigned long solaris_thread_id(void);
static boolean_t thread_setup(void);
/* LINTED E_STATIC_UNUSED */
static void thread_cleanup(void);
mutex_t init_lock = DEFAULTMUTEX;
static mutex_t *lock_cs;
static long *lock_count;
static boolean_t libssl_loaded = B_FALSE;
static boolean_t libcrypto_loaded = B_FALSE;
void
libssl_load()
{
void *dldesc;
(void) mutex_lock(&init_lock);
if (libssl_loaded) {
(void) mutex_unlock(&init_lock);
return;
}
dldesc = dlopen(LIBSSL, RTLD_LAZY);
if (dldesc != NULL) {
d2i_X509_NAME_fn = (X509_NAME*(*)())dlsym(dldesc,
"d2i_X509_NAME");
if (d2i_X509_NAME_fn == NULL)
goto libssl_err;
X509_NAME_print_ex_fp_fn = (int(*)())dlsym(dldesc,
"X509_NAME_print_ex_fp");
if (X509_NAME_print_ex_fp_fn == NULL)
goto libssl_err;
ERR_get_error_fn = (char *(*)())dlsym(dldesc,
"ERR_get_error");
if (ERR_get_error_fn == NULL)
goto libssl_err;
ERR_error_string_fn = (char *(*)())dlsym(dldesc,
"ERR_error_string");
if (ERR_error_string_fn == NULL)
goto libssl_err;
SSL_load_error_strings_fn = (void(*)())dlsym(dldesc,
"SSL_load_error_strings");
if (SSL_load_error_strings_fn == NULL)
goto libssl_err;
ERR_free_strings_fn = (void(*)())dlsym(dldesc,
"ERR_free_strings");
if (ERR_free_strings_fn == NULL)
goto libssl_err;
CRYPTO_set_locking_callback_fn = (void(*)())dlsym(dldesc,
"CRYPTO_set_locking_callback");
if (CRYPTO_set_locking_callback_fn == NULL)
goto libssl_err;
CRYPTO_set_id_callback_fn = (void(*)())dlsym(dldesc,
"CRYPTO_set_id_callback");
if (CRYPTO_set_id_callback_fn == NULL)
goto libssl_err;
X509_NAME_free_fn = (void(*)())dlsym(dldesc,
"X509_NAME_free");
if (X509_NAME_free_fn == NULL)
goto libssl_err;
if (thread_setup() == B_FALSE)
goto libssl_err;
libssl_loaded = B_TRUE;
}
(void) mutex_unlock(&init_lock);
return;
libssl_err:
(void) dlclose(dldesc);
(void) mutex_unlock(&init_lock);
}
void
libcrypto_load()
{
void *dldesc;
(void) mutex_lock(&init_lock);
if (libcrypto_loaded) {
(void) mutex_unlock(&init_lock);
return;
}
dldesc = dlopen(LIBCRYPTO, RTLD_LAZY);
if (dldesc != NULL) {
CRYPTO_num_locks_fn = (int(*)())dlsym(dldesc,
"CRYPTO_num_locks");
if (CRYPTO_num_locks_fn == NULL)
goto libcrypto_err;
/*
* OPENSSL_free is really a macro, so we
* need to reference the actual symbol,
* which is CRYPTO_free.
*/
OPENSSL_free_fn = (void(*)())dlsym(dldesc,
"CRYPTO_free");
if (OPENSSL_free_fn == NULL)
goto libcrypto_err;
/*
* OPENSSL_malloc is really a macro, so we
* need to reference the actual symbol,
* which is CRYPTO_malloc.
*/
OPENSSL_malloc_fn = (void *(*)())dlsym(dldesc,
"CRYPTO_malloc");
if (OPENSSL_malloc_fn == NULL)
goto libcrypto_err;
libcrypto_loaded = B_TRUE;
}
(void) mutex_unlock(&init_lock);
return;
libcrypto_err:
(void) dlclose(dldesc);
(void) mutex_unlock(&init_lock);
}
static boolean_t
thread_setup(void)
{
int i;
if ((lock_cs = OPENSSL_malloc_fn(CRYPTO_num_locks_fn() *
sizeof (mutex_t))) == NULL)
return (B_FALSE);
if ((lock_count = OPENSSL_malloc_fn(CRYPTO_num_locks_fn() *
sizeof (long))) == NULL) {
OPENSSL_free_fn(lock_cs);
return (B_FALSE);
}
for (i = 0; i < CRYPTO_num_locks_fn(); i++) {
lock_count[i] = 0;
(void) mutex_init(&(lock_cs[i]), USYNC_THREAD, NULL);
}
CRYPTO_set_id_callback_fn((unsigned long (*)())solaris_thread_id);
CRYPTO_set_locking_callback_fn((void (*)())solaris_locking_callback);
return (B_TRUE);
}
static void
thread_cleanup(void)
{
int i;
(void) mutex_lock(&init_lock);
CRYPTO_set_locking_callback_fn(NULL);
CRYPTO_set_id_callback_fn(NULL);
for (i = 0; i < CRYPTO_num_locks_fn(); i++)
(void) mutex_destroy(&(lock_cs[i]));
OPENSSL_free_fn(lock_cs);
OPENSSL_free_fn(lock_count);
(void) mutex_unlock(&init_lock);
}
/* ARGSUSED */
static void
solaris_locking_callback(int mode, int type, char *file, int line)
{
if (mode & CRYPTO_LOCK) {
(void) mutex_lock(&(lock_cs[type]));
lock_count[type]++;
} else {
(void) mutex_unlock(&(lock_cs[type]));
}
}
static unsigned long
solaris_thread_id(void)
{
unsigned long ret;
ret = (unsigned long)thr_self();
return (ret);
}
void
print_asn1_name(FILE *file, const unsigned char *buf, long buflen)
{
libcrypto_load();
if (libcrypto_loaded)
libssl_load();
if (libssl_loaded && libcrypto_loaded) {
X509_NAME *x509name = NULL;
const unsigned char *p;
/* Make an effort to decode the ASN1 encoded name */
SSL_load_error_strings_fn();
/*
* Temporary variable is mandatory per d2i_X509(3). Upcoming
* call to d2i_X509_NAME_fn() will change the 'p' pointer.
*/
p = buf;
x509name = d2i_X509_NAME_fn(NULL, &p, buflen);
if (x509name != NULL) {
(void) X509_NAME_print_ex_fp_fn(file, x509name, 0,
(ASN1_STRFLGS_RFC2253 | ASN1_STRFLGS_ESC_QUOTE |
XN_FLAG_SEP_CPLUS_SPC | XN_FLAG_FN_SN));
X509_NAME_free_fn(x509name);
(void) fprintf(file, "\n");
} else {
char errbuf[80];
(void) fprintf(file, "\n# %s\n",
ERR_error_string_fn(ERR_get_error_fn(), errbuf));
(void) fprintf(file, dgettext(TEXT_DOMAIN,
"<cannot interpret>\n"));
}
ERR_free_strings_fn();
} else {
(void) fprintf(file, dgettext(TEXT_DOMAIN, "<cannot print>\n"));
}
}