Blame SOURCES/nginx-1.14.1-enable-tls1v3-by-default.patch

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diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
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index 570abd7..ac37936 100644
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--- a/src/event/ngx_event_openssl.c
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+++ b/src/event/ngx_event_openssl.c
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@@ -232,6 +232,8 @@ ngx_ssl_init(ngx_log_t *log)
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 ngx_int_t
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 ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
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 {
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+    ngx_uint_t prot = NGX_SSL_NO_PROT;
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+
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     ssl->ctx = SSL_CTX_new(SSLv23_method());
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     if (ssl->ctx == NULL) {
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@@ -296,39 +298,53 @@ ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
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     SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_DH_USE);
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-#ifdef SSL_CTRL_CLEAR_OPTIONS
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-    /* only in 0.9.8m+ */
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-    SSL_CTX_clear_options(ssl->ctx,
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-                          SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1);
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+    if (protocols){
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+#ifdef SSL_OP_NO_TLSv1_3
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+        if (protocols & NGX_SSL_TLSv1_3) {
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+            prot = TLS1_3_VERSION;
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+        } else
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+#endif
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+#ifdef SSL_OP_NO_TLSv1_2
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+        if (protocols & NGX_SSL_TLSv1_2) {
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+            prot =  TLS1_2_VERSION;
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+        } else
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+#endif
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+#ifdef SSL_OP_NO_TLSv1_1
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+        if (protocols & NGX_SSL_TLSv1_1) {
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+            prot = TLS1_1_VERSION;
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+        } else
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 #endif
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+        if (protocols & NGX_SSL_TLSv1) {
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+            prot = TLS1_VERSION;
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+        }
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-    if (!(protocols & NGX_SSL_SSLv2)) {
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-        SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_SSLv2);
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-    }
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-    if (!(protocols & NGX_SSL_SSLv3)) {
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-        SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_SSLv3);
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-    }
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-    if (!(protocols & NGX_SSL_TLSv1)) {
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-        SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1);
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-    }
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+        if (prot == NGX_SSL_NO_PROT) {
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+                    ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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+                      "No SSL protocols available [hint: ssl_protocols]");
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+            return NGX_ERROR;
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+        }
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+
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+        SSL_CTX_set_max_proto_version(ssl->ctx, prot);
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+
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+        /* Now, we have to scan for minimal protocol version,
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+         *without allowing holes between min and max*/
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+#if SSL_OP_NO_TLSv1_3
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+        if ((prot == TLS1_3_VERSION) && (protocols & NGX_SSL_TLSv1_2)) {
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+            prot = TLS1_2_VERSION;
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+        }
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+#endif
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 #ifdef SSL_OP_NO_TLSv1_1
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-    SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_1);
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-    if (!(protocols & NGX_SSL_TLSv1_1)) {
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-        SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_1);
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-    }
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+        if ((prot == TLS1_2_VERSION) && (protocols & NGX_SSL_TLSv1_1)) {
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+            prot = TLS1_1_VERSION;
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+        }
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 #endif
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 #ifdef SSL_OP_NO_TLSv1_2
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-    SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_2);
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-    if (!(protocols & NGX_SSL_TLSv1_2)) {
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-        SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_2);
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-    }
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+        if ((prot == TLS1_1_VERSION) && (protocols & NGX_SSL_TLSv1)) {
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+            prot = TLS1_VERSION;
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+        }
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 #endif
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-#ifdef SSL_OP_NO_TLSv1_3
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-    SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_3);
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-    if (!(protocols & NGX_SSL_TLSv1_3)) {
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-        SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_3);
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+        SSL_CTX_set_min_proto_version(ssl->ctx, prot);
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     }
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-#endif
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 #ifdef SSL_OP_NO_COMPRESSION
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     SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_COMPRESSION);
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diff --git a/src/event/ngx_event_openssl.h b/src/event/ngx_event_openssl.h
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index 623d851..6f3d7ee 100644
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--- a/src/event/ngx_event_openssl.h
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+++ b/src/event/ngx_event_openssl.h
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@@ -132,6 +132,7 @@ typedef struct {
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 #endif
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+#define NGX_SSL_NO_PROT  0x0000
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 #define NGX_SSL_SSLv2    0x0002
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 #define NGX_SSL_SSLv3    0x0004
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 #define NGX_SSL_TLSv1    0x0008
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diff --git a/src/http/modules/ngx_http_ssl_module.c b/src/http/modules/ngx_http_ssl_module.c
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index 7d62176..f9ef07d 100644
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--- a/src/http/modules/ngx_http_ssl_module.c
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+++ b/src/http/modules/ngx_http_ssl_module.c
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@@ -590,8 +588,7 @@ ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
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                          prev->prefer_server_ciphers, 0);
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     ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols,
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-                         (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1
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-                          |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2));
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+                         0)
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     ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size,
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                          NGX_SSL_BUFSIZE);
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diff --git a/src/mail/ngx_mail_ssl_module.c b/src/mail/ngx_mail_ssl_module.c
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index aebd179..50c7023 100644
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--- a/src/mail/ngx_mail_ssl_module.c
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+++ b/src/mail/ngx_mail_ssl_module.c
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@@ -285,8 +283,7 @@ ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child)
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                          prev->prefer_server_ciphers, 0);
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     ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols,
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-                         (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1
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-                          |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2));
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+                         0);
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     ngx_conf_merge_uint_value(conf->verify, prev->verify, 0);
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     ngx_conf_merge_uint_value(conf->verify_depth, prev->verify_depth, 1);
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diff --git a/src/stream/ngx_stream_ssl_module.c b/src/stream/ngx_stream_ssl_module.c
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index 3e5a1f2..c8fce57 100644
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--- a/src/stream/ngx_stream_ssl_module.c
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+++ b/src/stream/ngx_stream_ssl_module.c
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@@ -554,8 +552,7 @@ ngx_stream_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child)
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                          prev->prefer_server_ciphers, 0);
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     ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols,
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-                         (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1
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-                          |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2));
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+                         0);
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     ngx_conf_merge_uint_value(conf->verify, prev->verify, 0);
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     ngx_conf_merge_uint_value(conf->verify_depth, prev->verify_depth, 1);