On the trunk:

mod_ssl: add support for TLSv1.3 (tested with OpenSSL v1.1.1-pre3, other libs may
     need more sugar). 



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1827912 13f79535-47bb-0310-9956-ffa450edef68

CHANGES

@@ -1,6 +1,9 @@
                                                          -*- coding: utf-8 -*-
 Changes with Apache 2.5.1
 
+  *) mod_ssl: add support for TLSv1.3 (tested with OpenSSL v1.1.1-pre3, other libs may
+     need more sugar). [Stefan Eissing]
+
   *) mod_remoteip: Restore compatibility with APR 1.4 (apr_sockaddr_is_wildcard).
      [Eric Covener]
 

modules/ssl/ssl_engine_config.c

@@ -1537,6 +1537,9 @@ static const char *ssl_cmd_protocol_parse(cmd_parms *parms,
         else if (strcEQ(w, "TLSv1.2")) {
             thisopt = SSL_PROTOCOL_TLSV1_2;
         }
+        else if (SSL_HAVE_PROTOCOL_TLSV1_3 && strcEQ(w, "TLSv1.3")) {
+            thisopt = SSL_PROTOCOL_TLSV1_3;
+        }
 #endif
         else if (strcEQ(w, "all")) {
             thisopt = SSL_PROTOCOL_ALL;

modules/ssl/ssl_engine_init.c

@@ -601,6 +601,9 @@ static apr_status_t ssl_init_ctx_protocol(server_rec *s,
 #ifdef HAVE_TLSV1_X
                      (protocol & SSL_PROTOCOL_TLSV1_1 ? "TLSv1.1, " : ""),
                      (protocol & SSL_PROTOCOL_TLSV1_2 ? "TLSv1.2, " : ""),
+#if SSL_HAVE_PROTOCOL_TLSV1_3
+                     (protocol & SSL_PROTOCOL_TLSV1_3 ? "TLSv1.3, " : ""),
+#endif
 #endif
                      NULL);
     cp[strlen(cp)-2] = NUL;
@@ -633,6 +636,13 @@ static apr_status_t ssl_init_ctx_protocol(server_rec *s,
             TLSv1_2_client_method() : /* proxy */
             TLSv1_2_server_method();  /* server */
     }
+#ifdef SSL_OP_NO_TLSv1_3
+    else if (protocol == SSL_PROTOCOL_TLSV1_3) {
+        method = mctx->pkp ?
+            TLSv1_3_client_method() : /* proxy */
+            TLSv1_3_server_method();  /* server */
+    }
+#endif
 #endif
     else { /* For multiple protocols, we need a flexible method */
         method = mctx->pkp ?
@@ -667,11 +677,17 @@ static apr_status_t ssl_init_ctx_protocol(server_rec *s,
 
     ssl_set_ctx_protocol_option(s, ctx, SSL_OP_NO_TLSv1_2,
                                 protocol & SSL_PROTOCOL_TLSV1_2, "TLSv1.2");
+#ifdef SSL_OP_NO_TLSv1_3
+    ssl_set_ctx_protocol_option(s, ctx, SSL_OP_NO_TLSv1_3,
+                                protocol & SSL_PROTOCOL_TLSV1_3, "TLSv1.3");
+#endif
 #endif
 
 #else /* #if OPENSSL_VERSION_NUMBER < 0x10100000L */
     /* We first determine the maximum protocol version we should provide */
-    if (protocol & SSL_PROTOCOL_TLSV1_2) {
+    if (SSL_HAVE_PROTOCOL_TLSV1_3 && (protocol & SSL_PROTOCOL_TLSV1_3)) {
+        prot = TLS1_3_VERSION;
+    } else  if (protocol & SSL_PROTOCOL_TLSV1_2) {
         prot = TLS1_2_VERSION;
     } else if (protocol & SSL_PROTOCOL_TLSV1_1) {
         prot = TLS1_1_VERSION;
@@ -692,6 +708,9 @@ static apr_status_t ssl_init_ctx_protocol(server_rec *s,
 
     /* Next we scan for the minimal protocol version we should provide,
      * but we do not allow holes between max and min */
+    if (prot == TLS1_3_VERSION && protocol & SSL_PROTOCOL_TLSV1_2) {
+        prot = TLS1_2_VERSION;
+    }
     if (prot == TLS1_2_VERSION && protocol & SSL_PROTOCOL_TLSV1_1) {
         prot = TLS1_1_VERSION;
     }

modules/ssl/ssl_policies.h

@@ -66,18 +66,18 @@
 #ifdef HAVE_TLSV1_X
 #define SSL_POLICY_MODERN    1
 #define SSL_POLICY_MODERN_CIPHERS "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256"
-#define SSL_POLICY_MODERN_PROTOCOLS SSL_PROTOCOL_TLSV1_2
+#define SSL_POLICY_MODERN_PROTOCOLS (SSL_PROTOCOL_TLSV1_2|SSL_PROTOCOL_TLSV1_3)
 #else /* ifdef HAVE_TLSV1_X */
 #define SSL_POLICY_MODERN    0
 #endif /* ifdef HAVE_TLSV1_X, else part */
 
 #define SSL_POLICY_INTERMEDIATE    1
 #define SSL_POLICY_INTERMEDIATE_CIPHERS "ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS"
-#define SSL_POLICY_INTERMEDIATE_PROTOCOLS (SSL_PROTOCOL_ALL & ~(SSL_PROTOCOL_CONSTANTS_SSLV3))
+#define SSL_POLICY_INTERMEDIATE_PROTOCOLS (SSL_PROTOCOL_ALL & ~(SSL_PROTOCOL_TLSV1_3|SSL_PROTOCOL_CONSTANTS_SSLV3))
 
 #define SSL_POLICY_OLD    1
 #define SSL_POLICY_OLD_CIPHERS "ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:DES-CBC3-SHA:HIGH:SEED:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!RSAPSK:!aDH:!aECDH:!EDH-DSS-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA:!SRP"
-#define SSL_POLICY_OLD_PROTOCOLS SSL_PROTOCOL_ALL
+#define SSL_POLICY_OLD_PROTOCOLS (SSL_PROTOCOL_ALL & ~(SSL_PROTOCOL_TLSV1_3))
 
 
 #endif /* __SSL_POLICIES_H__ */

modules/ssl/ssl_private.h

@@ -356,8 +356,17 @@ typedef int ssl_opt_t;
 #ifdef HAVE_TLSV1_X
 #define SSL_PROTOCOL_TLSV1_1 (1<<3)
 #define SSL_PROTOCOL_TLSV1_2 (1<<4)
+#define SSL_PROTOCOL_TLSV1_3 (1<<5)
+
+#ifdef SSL_OP_NO_TLSv1_3
+#define SSL_HAVE_PROTOCOL_TLSV1_3   (1)
+#define SSL_PROTOCOL_ALL   (SSL_PROTOCOL_BASIC| \
+                            SSL_PROTOCOL_TLSV1_1|SSL_PROTOCOL_TLSV1_2|SSL_PROTOCOL_TLSV1_3)
+#else
+#define SSL_HAVE_PROTOCOL_TLSV1_3   (0)
 #define SSL_PROTOCOL_ALL   (SSL_PROTOCOL_BASIC| \
                             SSL_PROTOCOL_TLSV1_1|SSL_PROTOCOL_TLSV1_2)
+#endif
 #else
 #define SSL_PROTOCOL_ALL   (SSL_PROTOCOL_BASIC)
 #endif

modules/ssl/update_policies.py

@@ -27,12 +27,15 @@ KEY_VERSION      = 'version'
 # TLS Versions we know how to handle
 #
 TLS_VERSIONS     = {
-    'TLSv1.2' : "SSL_PROTOCOL_TLSV1_2",
+    'TLSv1.3' : "SSL_PROTOCOL_TLSV1_3",
+# Mozilla does not list TLSv1.3 yet, but we want it in there!
+    'TLSv1.2' : "(SSL_PROTOCOL_TLSV1_2|SSL_PROTOCOL_TLSV1_3)",
+    #'TLSv1.2' : "SSL_PROTOCOL_TLSV1_2",
     'TLSv1.1' : "SSL_PROTOCOL_TLSV1_1",
     'TLSv1'   : "SSL_PROTOCOL_TLSV1",
     'SSLv3'   : "SSL_PROTOCOL_CONSTANTS_SSLV3",
 }
-TLS_1_X_VERSIONS = [ 'TLSv1.2' ]
+TLS_1_X_VERSIONS = [ 'TLSv1.2', 'TLSv1.3' ]
 
 # the Security configurations to extract
 POLICY_NAMES = [ 'modern', 'intermediate', 'old' ]