# ./pullrev.sh 1374214 1375445

http://svn.apache.org/viewvc?view=revision&revision=1374214
http://svn.apache.org/viewvc?view=revision&revision=1375445

--- httpd-2.4.2/modules/ssl/ssl_engine_init.c
+++ httpd-2.4.2/modules/ssl/ssl_engine_init.c
@@ -1381,7 +1381,7 @@
     for (n = 0; n < ncerts; n++) {
         X509_INFO *inf = sk_X509_INFO_value(sk, n);
 
-        if (!inf->x509 || !inf->x_pkey) {
+        if (!inf->x509 || !inf->x_pkey || !inf->x_pkey->dec_pkey) {
             sk_X509_INFO_free(sk);
             ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, s, APLOGNO(02252)
                          "incomplete client cert configured for SSL proxy "
@@ -1389,6 +1389,15 @@
             ssl_die(s);
             return;
         }
+        
+        if (X509_check_private_key(inf->x509, inf->x_pkey->dec_pkey) != 1) {
+            ssl_log_xerror(SSLLOG_MARK, APLOG_STARTUP, 0, ptemp, s, inf->x509,
+                           APLOGNO(02326) "proxy client certificate and "
+                           "private key do not match");
+            ssl_log_ssl_error(SSLLOG_MARK, APLOG_ERR, s);
+            ssl_die(s);
+            return;
+        }
     }
 
     ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(02207)
@@ -1401,7 +1410,11 @@
         return;
     }
 
-    /* Load all of the CA certs and construct a chain */
+    /* If SSLProxyMachineCertificateChainFile is configured, load all
+     * the CA certs and have OpenSSL attempt to construct a full chain
+     * from each configured end-entity cert up to a root.  This will
+     * allow selection of the correct cert given a list of root CA
+     * names in the certificate request from the server.  */
     pkp->ca_certs = (STACK_OF(X509) **) apr_pcalloc(p, ncerts * sizeof(sk));
     sctx = X509_STORE_CTX_new();