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openssl: indent, re-organize and add comments

This commit is contained in:
Clément Notin 2019-09-08 15:09:32 +02:00 committed by Daniel Stenberg
parent 67b30b3418
commit 9136542d33
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GPG Key ID: 5CC908FDB71E12C2
1 changed files with 38 additions and 32 deletions
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70
lib/vtls/openssl.c
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@ -2466,48 +2466,54 @@ static CURLcode ossl_connect_step1(struct connectdata *conn, int sockindex)
#endif
switch(ssl_version) {
case CURL_SSLVERSION_SSLv3:
ctx_options |= SSL_OP_NO_SSLv2;
ctx_options |= SSL_OP_NO_TLSv1;
/* "--sslv2" option means SSLv2 only, disable all others */
case CURL_SSLVERSION_SSLv2:
ctx_options |= SSL_OP_NO_SSLv3;
ctx_options |= SSL_OP_NO_TLSv1;
#if OPENSSL_VERSION_NUMBER >= 0x1000100FL
ctx_options |= SSL_OP_NO_TLSv1_1;
ctx_options |= SSL_OP_NO_TLSv1_2;
ctx_options |= SSL_OP_NO_TLSv1_1;
ctx_options |= SSL_OP_NO_TLSv1_2;
#ifdef TLS1_3_VERSION
ctx_options |= SSL_OP_NO_TLSv1_3;
ctx_options |= SSL_OP_NO_TLSv1_3;
#endif
#endif
break;
break;
case CURL_SSLVERSION_DEFAULT:
case CURL_SSLVERSION_TLSv1:
case CURL_SSLVERSION_TLSv1_0:
case CURL_SSLVERSION_TLSv1_1:
case CURL_SSLVERSION_TLSv1_2:
case CURL_SSLVERSION_TLSv1_3:
/* asking for any TLS version as the minimum, means no SSL versions
allowed */
ctx_options |= SSL_OP_NO_SSLv2;
ctx_options |= SSL_OP_NO_SSLv3;
result = set_ssl_version_min_max(&ctx_options, conn, sockindex);
if(result != CURLE_OK)
return result;
break;
case CURL_SSLVERSION_SSLv2:
ctx_options |= SSL_OP_NO_SSLv3;
ctx_options |= SSL_OP_NO_TLSv1;
/* "--sslv3" option means SSLv3 only, disable all others */
case CURL_SSLVERSION_SSLv3:
#if OPENSSL_VERSION_NUMBER >= 0x10100000L
SSL_CTX_set_min_proto_version(BACKEND->ctx, SSL3_VERSION);
#endif
ctx_options |= SSL_OP_NO_SSLv2;
ctx_options |= SSL_OP_NO_TLSv1;
#if OPENSSL_VERSION_NUMBER >= 0x1000100FL
ctx_options |= SSL_OP_NO_TLSv1_1;
ctx_options |= SSL_OP_NO_TLSv1_2;
ctx_options |= SSL_OP_NO_TLSv1_1;
ctx_options |= SSL_OP_NO_TLSv1_2;
#ifdef TLS1_3_VERSION
ctx_options |= SSL_OP_NO_TLSv1_3;
ctx_options |= SSL_OP_NO_TLSv1_3;
#endif
#endif
break;
break;
default:
failf(data, "Unrecognized parameter passed via CURLOPT_SSLVERSION");
return CURLE_SSL_CONNECT_ERROR;
/* "--tlsv<x.y>" options mean TLS >= version <x.y> */
case CURL_SSLVERSION_DEFAULT:
case CURL_SSLVERSION_TLSv1: /* TLS >= version 1.0 */
case CURL_SSLVERSION_TLSv1_0: /* TLS >= version 1.0 */
case CURL_SSLVERSION_TLSv1_1: /* TLS >= version 1.1 */
case CURL_SSLVERSION_TLSv1_2: /* TLS >= version 1.2 */
case CURL_SSLVERSION_TLSv1_3: /* TLS >= version 1.3 */
/* asking for any TLS version as the minimum, means no SSL versions
allowed */
ctx_options |= SSL_OP_NO_SSLv2;
ctx_options |= SSL_OP_NO_SSLv3;
result = set_ssl_version_min_max(&ctx_options, conn, sockindex);
if(result != CURLE_OK)
return result;
break;
default:
failf(data, "Unrecognized parameter passed via CURLOPT_SSLVERSION");
return CURLE_SSL_CONNECT_ERROR;
}
SSL_CTX_set_options(BACKEND->ctx, ctx_options);