Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/evp/evp_lib.c	Lines:	59	81	72.8 %
Date:	2017-11-07	Branches:	18	49	36.7 %


/* $OpenBSD: evp_lib.c,v 1.15 2017/01/29 17:49:23 beck Exp $ */
/* 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.]
 */

#include <stdio.h>
#include <string.h>

#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/objects.h>

int
EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
{
	int ret;

	if (c->cipher->set_asn1_parameters != NULL)
		ret = c->cipher->set_asn1_parameters(c, type);
	else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1)
		ret = EVP_CIPHER_set_asn1_iv(c, type);
	else
		ret = -1;
	return (ret);
}

int
EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
{
	int ret;

	if (c->cipher->get_asn1_parameters != NULL)
		ret = c->cipher->get_asn1_parameters(c, type);
	else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1)
		ret = EVP_CIPHER_get_asn1_iv(c, type);
	else
		ret = -1;
	return (ret);
}

int
EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
{
	int i = 0;
	unsigned int l;

	if (type != NULL) {
		l = EVP_CIPHER_CTX_iv_length(c);
		if (l > sizeof(c->iv)) {
			EVPerror(EVP_R_IV_TOO_LARGE);
			return 0;
		}
		i = ASN1_TYPE_get_octetstring(type, c->oiv, l);
		if (i != (int)l)
			return (-1);
		else if (i > 0)
			memcpy(c->iv, c->oiv, l);
	}
	return (i);
}

int
EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
{
	int i = 0;
	unsigned int j;

	if (type != NULL) {
		j = EVP_CIPHER_CTX_iv_length(c);
		if (j > sizeof(c->iv)) {
			EVPerror(EVP_R_IV_TOO_LARGE);
			return 0;
		}
		i = ASN1_TYPE_set_octetstring(type, c->oiv, j);
	}
	return (i);
}

/* Convert the various cipher NIDs and dummies to a proper OID NID */
int
EVP_CIPHER_type(const EVP_CIPHER *ctx)
{
	int nid;
	ASN1_OBJECT *otmp;
	nid = EVP_CIPHER_nid(ctx);

	switch (nid) {
	case NID_rc2_cbc:
	case NID_rc2_64_cbc:
	case NID_rc2_40_cbc:
		return NID_rc2_cbc;

	case NID_rc4:
	case NID_rc4_40:
		return NID_rc4;

	case NID_aes_128_cfb128:
	case NID_aes_128_cfb8:
	case NID_aes_128_cfb1:
		return NID_aes_128_cfb128;

	case NID_aes_192_cfb128:
	case NID_aes_192_cfb8:
	case NID_aes_192_cfb1:
		return NID_aes_192_cfb128;

	case NID_aes_256_cfb128:
	case NID_aes_256_cfb8:
	case NID_aes_256_cfb1:
		return NID_aes_256_cfb128;

	case NID_des_cfb64:
	case NID_des_cfb8:
	case NID_des_cfb1:
		return NID_des_cfb64;

	case NID_des_ede3_cfb64:
	case NID_des_ede3_cfb8:
	case NID_des_ede3_cfb1:
		return NID_des_cfb64;

	default:
		/* Check it has an OID and it is valid */
		otmp = OBJ_nid2obj(nid);
		if (!otmp || !otmp->data)
			nid = NID_undef;
		ASN1_OBJECT_free(otmp);
		return nid;
	}
}

int
EVP_CIPHER_block_size(const EVP_CIPHER *e)
{
	return e->block_size;
}

int
EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx)
{
	return ctx->cipher->block_size;
}

int
EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in,
    unsigned int inl)
{
	return ctx->cipher->do_cipher(ctx, out, in, inl);
}

const EVP_CIPHER *
EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx)
{
	return ctx->cipher;
}

unsigned long
EVP_CIPHER_flags(const EVP_CIPHER *cipher)
{
	return cipher->flags;
}

unsigned long
EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx)
{
	return ctx->cipher->flags;
}

void *
EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
{
	return ctx->app_data;
}

void
EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data)
{
	ctx->app_data = data;
}

int
EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
{
	return cipher->iv_len;
}

int
EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
{
	return ctx->cipher->iv_len;
}

int
EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
{
	return cipher->key_len;
}

int
EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
{
	return ctx->key_len;
}

int
EVP_CIPHER_nid(const EVP_CIPHER *cipher)
{
	return cipher->nid;
}

int
EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx)
{
	return ctx->cipher->nid;
}

int
EVP_MD_block_size(const EVP_MD *md)
{
	return md->block_size;
}

int
EVP_MD_type(const EVP_MD *md)
{
	return md->type;
}

int
EVP_MD_pkey_type(const EVP_MD *md)
{
	return md->pkey_type;
}

int
EVP_MD_size(const EVP_MD *md)
{
	if (!md) {
		EVPerror(EVP_R_MESSAGE_DIGEST_IS_NULL);
		return -1;
	}
	return md->md_size;
}

unsigned long
EVP_MD_flags(const EVP_MD *md)
{
	return md->flags;
}

const EVP_MD *
EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
{
	if (!ctx)
		return NULL;
	return ctx->digest;
}

void
EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
{
	ctx->flags |= flags;
}

void
EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags)
{
	ctx->flags &= ~flags;
}

int
EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags)
{
	return (ctx->flags & flags);
}

void
EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags)
{
	ctx->flags |= flags;
}

void
EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags)
{
	ctx->flags &= ~flags;
}

int
EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags)
{
	return (ctx->flags & flags);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: evp_lib.c,v 1.15 2017/01/29 17:49:23 beck Exp $ */
2			/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3			* All rights reserved.
4			*
5			* This package is an SSL implementation written
6			* by Eric Young (eay@cryptsoft.com).
7			* The implementation was written so as to conform with Netscapes SSL.
8			*
9			* This library is free for commercial and non-commercial use as long as
10			* the following conditions are aheared to. The following conditions
11			* apply to all code found in this distribution, be it the RC4, RSA,
12			* lhash, DES, etc., code; not just the SSL code. The SSL documentation
13			* included with this distribution is covered by the same copyright terms
14			* except that the holder is Tim Hudson (tjh@cryptsoft.com).
15			*
16			* Copyright remains Eric Young's, and as such any Copyright notices in
17			* the code are not to be removed.
18			* If this package is used in a product, Eric Young should be given attribution
19			* as the author of the parts of the library used.
20			* This can be in the form of a textual message at program startup or
21			* in documentation (online or textual) provided with the package.
22			*
23			* Redistribution and use in source and binary forms, with or without
24			* modification, are permitted provided that the following conditions
25			* are met:
26			* 1. Redistributions of source code must retain the copyright
27			* notice, this list of conditions and the following disclaimer.
28			* 2. Redistributions in binary form must reproduce the above copyright
29			* notice, this list of conditions and the following disclaimer in the
30			* documentation and/or other materials provided with the distribution.
31			* 3. All advertising materials mentioning features or use of this software
32			* must display the following acknowledgement:
33			* "This product includes cryptographic software written by
34			* Eric Young (eay@cryptsoft.com)"
35			* The word 'cryptographic' can be left out if the rouines from the library
36			* being used are not cryptographic related :-).
37			* 4. If you include any Windows specific code (or a derivative thereof) from
38			* the apps directory (application code) you must include an acknowledgement:
39			* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40			*
41			* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51			* SUCH DAMAGE.
52			*
53			* The licence and distribution terms for any publically available version or
54			* derivative of this code cannot be changed. i.e. this code cannot simply be
55			* copied and put under another distribution licence
56			* [including the GNU Public Licence.]
57			*/
58
59			#include <stdio.h>
60			#include <string.h>
61
62			#include <openssl/err.h>
63			#include <openssl/evp.h>
64			#include <openssl/objects.h>
65
66			int
67			EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX c, ASN1_TYPE type)
68			{
69			int ret;
70
71	✓✓	44	if (c->cipher->set_asn1_parameters != NULL)
72		2	ret = c->cipher->set_asn1_parameters(c, type);
73	✓✗	20	else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1)
74		20	ret = EVP_CIPHER_set_asn1_iv(c, type);
75			else
76			ret = -1;
77		22	return (ret);
78			}
79
80			int
81			EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX c, ASN1_TYPE type)
82			{
83			int ret;
84
85	✓✓	104	if (c->cipher->get_asn1_parameters != NULL)
86		2	ret = c->cipher->get_asn1_parameters(c, type);
87	✓✗	50	else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1)
88		50	ret = EVP_CIPHER_get_asn1_iv(c, type);
89			else
90			ret = -1;
91		52	return (ret);
92			}
93
94			int
95			EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX c, ASN1_TYPE type)
96			{
97			int i = 0;
98			unsigned int l;
99
100	✓✗	104	if (type != NULL) {
101		52	l = EVP_CIPHER_CTX_iv_length(c);
102	✗✓	52	if (l > sizeof(c->iv)) {
103			EVPerror(EVP_R_IV_TOO_LARGE);
104			return 0;
105			}
106		52	i = ASN1_TYPE_get_octetstring(type, c->oiv, l);
107	✗✓	52	if (i != (int)l)
108			return (-1);
109	✓✗	52	else if (i > 0)
110		52	memcpy(c->iv, c->oiv, l);
111			}
112		52	return (i);
113		52	}
114
115			int
116			EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX c, ASN1_TYPE type)
117			{
118			int i = 0;
119			unsigned int j;
120
121	✓✗	44	if (type != NULL) {
122		22	j = EVP_CIPHER_CTX_iv_length(c);
123	✗✓	22	if (j > sizeof(c->iv)) {
124			EVPerror(EVP_R_IV_TOO_LARGE);
125			return 0;
126			}
127		22	i = ASN1_TYPE_set_octetstring(type, c->oiv, j);
128		22	}
129		22	return (i);
130		22	}
131
132			/* Convert the various cipher NIDs and dummies to a proper OID NID */
133			int
134			EVP_CIPHER_type(const EVP_CIPHER *ctx)
135			{
136			int nid;
137			ASN1_OBJECT *otmp;
138		56	nid = EVP_CIPHER_nid(ctx);
139
140	✗✗✗✗ ✗✗✗✗ ✗✗✗✗ ✗✗✗✗ ✗✗✗✗ ✓	28	switch (nid) {
141			case NID_rc2_cbc:
142			case NID_rc2_64_cbc:
143			case NID_rc2_40_cbc:
144			return NID_rc2_cbc;
145
146			case NID_rc4:
147			case NID_rc4_40:
148			return NID_rc4;
149
150			case NID_aes_128_cfb128:
151			case NID_aes_128_cfb8:
152			case NID_aes_128_cfb1:
153			return NID_aes_128_cfb128;
154
155			case NID_aes_192_cfb128:
156			case NID_aes_192_cfb8:
157			case NID_aes_192_cfb1:
158			return NID_aes_192_cfb128;
159
160			case NID_aes_256_cfb128:
161			case NID_aes_256_cfb8:
162			case NID_aes_256_cfb1:
163			return NID_aes_256_cfb128;
164
165			case NID_des_cfb64:
166			case NID_des_cfb8:
167			case NID_des_cfb1:
168			return NID_des_cfb64;
169
170			case NID_des_ede3_cfb64:
171			case NID_des_ede3_cfb8:
172			case NID_des_ede3_cfb1:
173			return NID_des_cfb64;
174
175			default:
176			/* Check it has an OID and it is valid */
177		28	otmp = OBJ_nid2obj(nid);
178	✓✗✗✓	56	if (!otmp \|\| !otmp->data)
179			nid = NID_undef;
180		28	ASN1_OBJECT_free(otmp);
181		28	return nid;
182			}
183		28	}
184
185			int
186			EVP_CIPHER_block_size(const EVP_CIPHER *e)
187			{
188		5552	return e->block_size;
189			}
190
191			int
192			EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx)
193			{
194		464	return ctx->cipher->block_size;
195			}
196
197			int
198			EVP_Cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in,
199			unsigned int inl)
200			{
201		4064	return ctx->cipher->do_cipher(ctx, out, in, inl);
202			}
203
204			const EVP_CIPHER *
205			EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx)
206			{
207		4000	return ctx->cipher;
208			}
209
210			unsigned long
211			EVP_CIPHER_flags(const EVP_CIPHER *cipher)
212			{
213		16080	return cipher->flags;
214			}
215
216			unsigned long
217			EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx)
218			{
219		18500	return ctx->cipher->flags;
220			}
221
222			void *
223			EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
224			{
225			return ctx->app_data;
226			}
227
228			void
229			EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX ctx, void data)
230			{
231			ctx->app_data = data;
232			}
233
234			int
235			EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
236			{
237		2548	return cipher->iv_len;
238			}
239
240			int
241			EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
242			{
243		18148	return ctx->cipher->iv_len;
244			}
245
246			int
247			EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
248			{
249		1996	return cipher->key_len;
250			}
251
252			int
253			EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
254			{
255		948	return ctx->key_len;
256			}
257
258			int
259			EVP_CIPHER_nid(const EVP_CIPHER *cipher)
260			{
261		2980	return cipher->nid;
262			}
263
264			int
265			EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx)
266			{
267			return ctx->cipher->nid;
268			}
269
270			int
271			EVP_MD_block_size(const EVP_MD *md)
272			{
273		617352	return md->block_size;
274			}
275
276			int
277			EVP_MD_type(const EVP_MD *md)
278			{
279		7420	return md->type;
280			}
281
282			int
283			EVP_MD_pkey_type(const EVP_MD *md)
284			{
285			return md->pkey_type;
286			}
287
288			int
289			EVP_MD_size(const EVP_MD *md)
290			{
291	✗✓	396052	if (!md) {
292			EVPerror(EVP_R_MESSAGE_DIGEST_IS_NULL);
293			return -1;
294			}
295		198026	return md->md_size;
296		198026	}
297
298			unsigned long
299			EVP_MD_flags(const EVP_MD *md)
300			{
301		68	return md->flags;
302			}
303
304			const EVP_MD *
305			EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
306			{
307	✓✓	355740	if (!ctx)
308		40911	return NULL;
309		136959	return ctx->digest;
310		177870	}
311
312			void
313			EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
314			{
315		2121216	ctx->flags \|= flags;
316		1060608	}
317
318			void
319			EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags)
320			{
321		804074	ctx->flags &= ~flags;
322		402037	}
323
324			int
325			EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags)
326			{
327		5008148	return (ctx->flags & flags);
328			}
329
330			void
331			EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags)
332			{
333			ctx->flags \|= flags;
334			}
335
336			void
337			EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags)
338			{
339			ctx->flags &= ~flags;
340			}
341
342			int
343			EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags)
344			{
345			return (ctx->flags & flags);
346			}