From b9e780e94aad0565f2849397240ada1481c68b58 Mon Sep 17 00:00:00 2001
From: Quanah Gibson-Mount <quanah@openldap.org>
Date: Tue, 12 Feb 2008 01:42:33 +0000
Subject: [PATCH] ITS#5362

---
 CHANGES                  |  1 +
 servers/slapd/ctxcsn.c   |  5 +++++
 servers/slapd/syncrepl.c | 19 +++++++++++++++----
 3 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/CHANGES b/CHANGES
index 733b0bc57b..88d1080755 100644
--- a/CHANGES
+++ b/CHANGES
@@ -25,6 +25,7 @@ OpenLDAP 2.4.8 Engineering
 	Fixed slapd segv with SASL/OTP (ITS#5259)
 	Fixed slapd cn=config crash on delete (ITS#5343)
 	Fixed slapd cn=config global acls (ITS#5352)
+	Fixed slapd truncated cookie (ITS#5362)
 	Fixed slapd str2entry with no attrs (ITS#5308)
 	Fixed slapd-bdb crash with modrdn (ITS#5358)
 	Fixed slapd-bdb segv with bdb4.6 (ITS#5322)
diff --git a/servers/slapd/ctxcsn.c b/servers/slapd/ctxcsn.c
index 493e972ec8..a5958be6b3 100644
--- a/servers/slapd/ctxcsn.c
+++ b/servers/slapd/ctxcsn.c
@@ -99,6 +99,8 @@ slap_graduate_commit_csn( Operation *op )
 		if ( csne->ce_opid == op->o_opid && csne->ce_connid == op->o_connid ) {
 			LDAP_TAILQ_REMOVE( op->o_bd->be_pending_csn_list,
 				csne, ce_csn_link );
+			Debug( LDAP_DEBUG_SYNC, "slap_graduate_commit_csn: removing %p %s\n",
+				csne->ce_csn.bv_val, csne->ce_csn.bv_val, 0 );
 			if ( op->o_csn.bv_val == csne->ce_csn.bv_val ) {
 				BER_BVZERO( &op->o_csn );
 			}
@@ -162,6 +164,9 @@ slap_queue_csn(
 
 	pending = (struct slap_csn_entry *) ch_calloc( 1,
 			sizeof( struct slap_csn_entry ));
+
+	Debug( LDAP_DEBUG_SYNC, "slap_queue_csn: queing %p %s\n", csn->bv_val, csn->bv_val, 0 );
+
 	ldap_pvt_thread_mutex_lock( op->o_bd->be_pcl_mutexp );
 
 	ber_dupbv( &pending->ce_csn, csn );
diff --git a/servers/slapd/syncrepl.c b/servers/slapd/syncrepl.c
index 1f3f86a9ef..e5f732f446 100644
--- a/servers/slapd/syncrepl.c
+++ b/servers/slapd/syncrepl.c
@@ -811,6 +811,19 @@ do_syncrep2(
 					if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 					{
 						slap_parse_sync_cookie( &syncCookie, NULL );
+						if ( syncCookie.ctxcsn ) {
+							int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
+							for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
+								if ( si->si_cookieState->cs_sids[i] == sid && 
+									ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
+									Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
+										si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
+									ldap_controls_free( rctrls );
+									rc = 0;
+									goto done;
+								}
+							}
+						}
 					}
 				}
 				rc = 0;
@@ -2708,7 +2721,6 @@ syncrepl_updateCookie(
 	}
 	ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 
-	slap_graduate_commit_csn( op );
 	op->o_bd = be;
 	op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
 	BER_BVZERO( &op->o_csn );
@@ -2931,10 +2943,9 @@ dn_callback(
 					} else if ( rc == 0 ) {
 						Debug( LDAP_DEBUG_SYNC,
 							"dn_callback : entries have identical CSN "
-							"%s ours %s, new %s\n",
+							"%s %s\n",
 							rs->sr_entry->e_name.bv_val,
-							old->a_vals[0].bv_val,
-							new->a_vals[0].bv_val );
+							old->a_vals[0].bv_val, 0 );
 						return LDAP_SUCCESS;
 					}
 				}
-- 
2.39.5