svn rev #25374: branches/krb5-1-9/src/kdc/

[tlyu@MIT.EDU]

http://src.mit.edu/fisheye/changelog/krb5/?cs=25374
Commit By: tlyu
Log Message:
ticket: 6941
version_fixed: 1.9.2
status: resolved

pull up r25076 from trunk

 ------------------------------------------------------------------------
 r25076 | ghudson | 2011-08-08 14:27:15 -0400 (Mon, 08 Aug 2011) | 14 lines

 ticket: 6941
 subject: Fix accidental KDC use of replay cache
 target_version: 1.9.2
 tags: pullup

 r24464 (ticket #6804) intended to remove the KDC replay cache by
 eliminating all of the USE_RCACHE code, but it had the unintended side
 effect of causing krb5_rd_req_decoded to use the default server
 rcache.  Using this cache is much less efficient because it is opened
 and re-read for each request.

 Set appropriate flags on the auth context to disable replay cache use
 for TGS requests altogether.

------------------------------------------------------------------------


Changed Files:
U   branches/krb5-1-9/src/kdc/kdc_util.c
Modified: branches/krb5-1-9/src/kdc/kdc_util.c
===================================================================
--- branches/krb5-1-9/src/kdc/kdc_util.c	2011-10-18 20:18:41 UTC (rev 25373)
+++ branches/krb5-1-9/src/kdc/kdc_util.c	2011-10-18 20:18:44 UTC (rev 25374)
@@ -249,6 +249,10 @@
     if ((retval = krb5_auth_con_init(kdc_context, &auth_context)))
         goto cleanup;
 
+    /* Don't use a replay cache. */
+    if ((retval = krb5_auth_con_setflags(kdc_context, auth_context, 0)))
+        goto cleanup;
+
     if ((retval = krb5_auth_con_setaddrs(kdc_context, auth_context, NULL,
                                          from->address)) )
         goto cleanup_auth_context;