Changeset e8acf05 in mod_gnutls for src/mod_gnutls.c

Timestamp:

Jan 20, 2015, 10:45:39 AM (5 years ago)

Author:

Thomas Klute <thomas2.klute@…>

Branches:

debian/master, debian/stretch-backports, jessie-backports, master, upstream

Children:

c782c1f

Parents:

e4b58b6

git-author:

Thomas Klute <thomas2.klute@…> (01/20/15 10:30:36)

git-committer:

Thomas Klute <thomas2.klute@…> (01/20/15 10:45:39)

Message:

Enable/disable TLS per connection in ssl_engine_disable

Previously, ssl_engine_disable set the server wide variable sc->enabled
to GNUTLS_ENABLED_FALSE, leading to mod_gnutls refusing to serve any
connection, including incoming client connections. The general HTTP
handler cannot process raw TLS traffic, so all further requests using
TLS failed.

This commit adds a new element "enabled" to struct mgs_handle_t, which
is used to disable TLS per connection, making it possible to disable TLS
for proxy back end connections while continuing to serve TLS clients.

File:

• src/mod_gnutls.c (modified) (3 diffs)

src/mod_gnutls.c

@@ -20 +20 @@
 #include "mod_gnutls.h"
 
-static void gnutls_hooks(apr_pool_t * p __attribute__((unused))) {
-
+#ifdef APLOG_USE_MODULE
+APLOG_USE_MODULE(gnutls);
+#endif
+
+static void gnutls_hooks(apr_pool_t * p __attribute__((unused)))
+{
     /* Try Run Post-Config Hook After mod_proxy */
     static const char * const aszPre[] = { "mod_proxy.c", NULL };
@@ -75 +79 @@
 }
 
-int ssl_engine_disable(conn_rec *c) {
+int ssl_engine_disable(conn_rec *c)
+{
     mgs_srvconf_rec *sc = (mgs_srvconf_rec *)
-            ap_get_module_config(c->base_server->module_config, &gnutls_module);
+        ap_get_module_config(c->base_server->module_config, &gnutls_module);
     if(sc->enabled == GNUTLS_ENABLED_FALSE) {
         return 1;
     }
+
+    /* disable TLS for this connection */
+    mgs_handle_t *ctxt = (mgs_handle_t *) ap_get_module_config(c->conn_config, &gnutls_module);
+    if (ctxt == NULL)
+    {
+        ap_log_cerror(APLOG_MARK, APLOG_DEBUG, 0, c, "%s: allocating connection memory", __func__);
+        ctxt = apr_pcalloc(c->pool, sizeof (*ctxt));
+        ap_set_module_config(c->conn_config, &gnutls_module, ctxt);
+    }
+    ctxt->enabled = GNUTLS_ENABLED_FALSE;
+
     if (c->input_filters)
         ap_remove_input_filter(c->input_filters);
@@ -86 +102 @@
         ap_remove_output_filter(c->output_filters);
     mgs_cleanup_pre_config(c->pool);
-    sc->enabled = GNUTLS_ENABLED_FALSE;
     return 1;
 }