Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/crypto/../../libssl/src/crypto/engine/eng_init.c	Lines:	0	39	0.0 %
Date:	2016-12-06	Branches:	0	24	0.0 %


/* $OpenBSD: eng_init.c,v 1.7 2015/02/11 03:19:37 doug Exp $ */
/* ====================================================================
 * Copyright (c) 1999-2001 The OpenSSL Project.  All rights reserved.
 *
 * 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 above 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 acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS 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.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <openssl/err.h>

#include "eng_int.h"

/* Initialise a engine type for use (or up its functional reference count
 * if it's already in use). This version is only used internally. */
int
engine_unlocked_init(ENGINE *e)
{
	int to_return = 1;

	if ((e->funct_ref == 0) && e->init)
		/* This is the first functional reference and the engine
		 * requires initialisation so we do it now. */
		to_return = e->init(e);
	if (to_return) {
		/* OK, we return a functional reference which is also a
		 * structural reference. */
		e->struct_ref++;
		e->funct_ref++;
		engine_ref_debug(e, 0, 1)
		engine_ref_debug(e, 1, 1)
	}
	return to_return;
}

/* Free a functional reference to a engine type. This version is only used
 * internally. */
int
engine_unlocked_finish(ENGINE *e, int unlock_for_handlers)
{
	int to_return = 1;

	/* Reduce the functional reference count here so if it's the terminating
	 * case, we can release the lock safely and call the finish() handler
	 * without risk of a race. We get a race if we leave the count until
	 * after and something else is calling "finish" at the same time -
	 * there's a chance that both threads will together take the count from
	 * 2 to 0 without either calling finish(). */
	e->funct_ref--;
	engine_ref_debug(e, 1, -1);
	if ((e->funct_ref == 0) && e->finish) {
		if (unlock_for_handlers)
			CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
		to_return = e->finish(e);
		if (unlock_for_handlers)
			CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
		if (!to_return)
			return 0;
	}

	/* Release the structural reference too */
	if (!engine_free_util(e, 0)) {
		ENGINEerr(ENGINE_F_ENGINE_UNLOCKED_FINISH,
		    ENGINE_R_FINISH_FAILED);
		return 0;
	}
	return to_return;
}

/* The API (locked) version of "init" */
int
ENGINE_init(ENGINE *e)
{
	int ret;

	if (e == NULL) {
		ENGINEerr(ENGINE_F_ENGINE_INIT, ERR_R_PASSED_NULL_PARAMETER);
		return 0;
	}
	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
	ret = engine_unlocked_init(e);
	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
	return ret;
}

/* The API (locked) version of "finish" */
int
ENGINE_finish(ENGINE *e)
{
	int to_return = 1;

	if (e == NULL) {
		ENGINEerr(ENGINE_F_ENGINE_FINISH, ERR_R_PASSED_NULL_PARAMETER);
		return 0;
	}
	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
	to_return = engine_unlocked_finish(e, 1);
	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
	if (!to_return) {
		ENGINEerr(ENGINE_F_ENGINE_FINISH, ENGINE_R_FINISH_FAILED);
		return 0;
	}
	return to_return;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: eng_init.c,v 1.7 2015/02/11 03:19:37 doug Exp $ */
2			/* ====================================================================
3			* Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
4			*
5			* Redistribution and use in source and binary forms, with or without
6			* modification, are permitted provided that the following conditions
7			* are met:
8			*
9			* 1. Redistributions of source code must retain the above copyright
10			* notice, this list of conditions and the following disclaimer.
11			*
12			* 2. Redistributions in binary form must reproduce the above copyright
13			* notice, this list of conditions and the following disclaimer in
14			* the documentation and/or other materials provided with the
15			* distribution.
16			*
17			* 3. All advertising materials mentioning features or use of this
18			* software must display the following acknowledgment:
19			* "This product includes software developed by the OpenSSL Project
20			* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21			*
22			* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23			* endorse or promote products derived from this software without
24			* prior written permission. For written permission, please contact
25			* licensing@OpenSSL.org.
26			*
27			* 5. Products derived from this software may not be called "OpenSSL"
28			* nor may "OpenSSL" appear in their names without prior written
29			* permission of the OpenSSL Project.
30			*
31			* 6. Redistributions of any form whatsoever must retain the following
32			* acknowledgment:
33			* "This product includes software developed by the OpenSSL Project
34			* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35			*
36			* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37			* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39			* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40			* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41			* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43			* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45			* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46			* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47			* OF THE POSSIBILITY OF SUCH DAMAGE.
48			* ====================================================================
49			*
50			* This product includes cryptographic software written by Eric Young
51			* (eay@cryptsoft.com). This product includes software written by Tim
52			* Hudson (tjh@cryptsoft.com).
53			*
54			*/
55
56			#include <openssl/err.h>
57
58			#include "eng_int.h"
59
60			/* Initialise a engine type for use (or up its functional reference count
61			* if it's already in use). This version is only used internally. */
62			int
63			engine_unlocked_init(ENGINE *e)
64			{
65			int to_return = 1;
66
67			if ((e->funct_ref == 0) && e->init)
68			/* This is the first functional reference and the engine
69			* requires initialisation so we do it now. */
70			to_return = e->init(e);
71			if (to_return) {
72			/* OK, we return a functional reference which is also a
73			* structural reference. */
74			e->struct_ref++;
75			e->funct_ref++;
76			engine_ref_debug(e, 0, 1)
77			engine_ref_debug(e, 1, 1)
78			}
79			return to_return;
80			}
81
82			/* Free a functional reference to a engine type. This version is only used
83			* internally. */
84			int
85			engine_unlocked_finish(ENGINE *e, int unlock_for_handlers)
86			{
87			int to_return = 1;
88
89			/* Reduce the functional reference count here so if it's the terminating
90			* case, we can release the lock safely and call the finish() handler
91			* without risk of a race. We get a race if we leave the count until
92			* after and something else is calling "finish" at the same time -
93			* there's a chance that both threads will together take the count from
94			* 2 to 0 without either calling finish(). */
95			e->funct_ref--;
96			engine_ref_debug(e, 1, -1);
97			if ((e->funct_ref == 0) && e->finish) {
98			if (unlock_for_handlers)
99			CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
100			to_return = e->finish(e);
101			if (unlock_for_handlers)
102			CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
103			if (!to_return)
104			return 0;
105			}
106
107			/* Release the structural reference too */
108			if (!engine_free_util(e, 0)) {
109			ENGINEerr(ENGINE_F_ENGINE_UNLOCKED_FINISH,
110			ENGINE_R_FINISH_FAILED);
111			return 0;
112			}
113			return to_return;
114			}
115
116			/* The API (locked) version of "init" */
117			int
118			ENGINE_init(ENGINE *e)
119			{
120			int ret;
121
122			if (e == NULL) {
123			ENGINEerr(ENGINE_F_ENGINE_INIT, ERR_R_PASSED_NULL_PARAMETER);
124			return 0;
125			}
126			CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
127			ret = engine_unlocked_init(e);
128			CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
129			return ret;
130			}
131
132			/* The API (locked) version of "finish" */
133			int
134			ENGINE_finish(ENGINE *e)
135			{
136			int to_return = 1;
137
138			if (e == NULL) {
139			ENGINEerr(ENGINE_F_ENGINE_FINISH, ERR_R_PASSED_NULL_PARAMETER);
140			return 0;
141			}
142			CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
143			to_return = engine_unlocked_finish(e, 1);
144			CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
145			if (!to_return) {
146			ENGINEerr(ENGINE_F_ENGINE_FINISH, ENGINE_R_FINISH_FAILED);
147			return 0;
148			}
149			return to_return;
150			}