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SSL: clear protocol options.

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LibreSSL 2.1.1+ started to set SSL_OP_NO_SSLv3 option by default on
new contexts.  This makes sure to clear it to make it possible to use SSLv3
with LibreSSL if enabled in nginx config.

Prodded by Kuramoto Eiji.
This commit is contained in:
Maxim Dounin 2015-03-23 02:42:32 +03:00
parent cc569b9252
commit b0d8ff55a1
1 changed files with 8 additions and 0 deletions
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8
src/event/ngx_event_openssl.c
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@ -249,6 +249,12 @@ ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_DH_USE);
#ifdef SSL_CTRL_CLEAR_OPTIONS
/* only in 0.9.8m+ */
SSL_CTX_clear_options(ssl->ctx,
SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1);
#endif
if (!(protocols & NGX_SSL_SSLv2)) {
SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_SSLv2);
}
@ -259,11 +265,13 @@ ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1);
}
#ifdef SSL_OP_NO_TLSv1_1
SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_1);
if (!(protocols & NGX_SSL_TLSv1_1)) {
SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_1);
}
#endif
#ifdef SSL_OP_NO_TLSv1_2
SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_2);
if (!(protocols & NGX_SSL_TLSv1_2)) {
SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_2);
}