1 /*
2 * libwebsockets - small server side websockets and web server implementation
3 *
4 * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 *
24 *  lws-gencrypto openssl-specific common code
25 */
26
27#include "private-lib-core.h"
28#include "private-lib-tls-openssl.h"
29
30/*
31 * Care: many openssl apis return 1 for success.  These are translated to the
32 * lws convention of 0 for success.
33 */
34
35int
36lws_gencrypto_openssl_hash_to_NID(enum lws_genhash_types hash_type)
37{
38	int h = -1;
39
40	switch (hash_type) {
41	case LWS_GENHASH_TYPE_UNKNOWN:
42		break;
43	case LWS_GENHASH_TYPE_MD5:
44		h = NID_md5;
45		break;
46	case LWS_GENHASH_TYPE_SHA1:
47		h = NID_sha1;
48		break;
49	case LWS_GENHASH_TYPE_SHA256:
50		h = NID_sha256;
51		break;
52	case LWS_GENHASH_TYPE_SHA384:
53		h = NID_sha384;
54		break;
55	case LWS_GENHASH_TYPE_SHA512:
56		h = NID_sha512;
57		break;
58	}
59
60	return h;
61}
62
63const EVP_MD *
64lws_gencrypto_openssl_hash_to_EVP_MD(enum lws_genhash_types hash_type)
65{
66	const EVP_MD *h = NULL;
67
68	switch (hash_type) {
69	case LWS_GENHASH_TYPE_UNKNOWN:
70		break;
71	case LWS_GENHASH_TYPE_MD5:
72		h = EVP_md5();
73		break;
74	case LWS_GENHASH_TYPE_SHA1:
75		h = EVP_sha1();
76		break;
77	case LWS_GENHASH_TYPE_SHA256:
78		h = EVP_sha256();
79		break;
80	case LWS_GENHASH_TYPE_SHA384:
81		h = EVP_sha384();
82		break;
83	case LWS_GENHASH_TYPE_SHA512:
84		h = EVP_sha512();
85		break;
86	}
87
88	return h;
89}
90