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-mbedtls.h"
29
30mbedtls_md_type_t
31lws_gencrypto_mbedtls_hash_to_MD_TYPE(enum lws_genhash_types hash_type)
32{
33	mbedtls_md_type_t h = (mbedtls_md_type_t)-1;
34
35	switch (hash_type) {
36	case LWS_GENHASH_TYPE_MD5:
37		h = MBEDTLS_MD_MD5;
38		break;
39	case LWS_GENHASH_TYPE_SHA1:
40		h = MBEDTLS_MD_SHA1;
41		break;
42	case LWS_GENHASH_TYPE_SHA256:
43		h = MBEDTLS_MD_SHA256;
44		break;
45	case LWS_GENHASH_TYPE_SHA384:
46		h = MBEDTLS_MD_SHA384;
47		break;
48	case LWS_GENHASH_TYPE_SHA512:
49		h = MBEDTLS_MD_SHA512;
50		break;
51	default:
52		break;
53	}
54
55	return h;
56}
57
58int
59lws_gencrypto_mbedtls_rngf(void *context, unsigned char *buf, size_t len)
60{
61	if ((size_t)lws_get_random(context, buf, len) == len) {
62		// lwsl_hexdump_err(buf, len);
63		return 0;
64	}
65	lwsl_err("%s: rng failed\n", __func__);
66	return -1;
67}
68