From 0ca1fbc64f2f02cbdff0827e4ca1bbe312bebc2f Mon Sep 17 00:00:00 2001
From: Ralf Haferkamp <rhafer@suse.de>
Date: Fri, 22 Jan 2010 11:18:46 +0100
Subject: config-delete overlay fixes

- unregister controls when removing overlays from cn=config (syncprov,
  ppolicy, valsort, chain and sssvlv)
- Send error to active psearches upon syncprov overlay removal
- syncprov: reset BackendInfo to original value after checkpoint. Leaks memory
  otherwise (with -DSLAP_CONFIG_DELETE)

bnc#548773

diff --git a/servers/slapd/back-ldap/chain.c b/servers/slapd/back-ldap/chain.c
index 41bb6ef..8f37efb 100644
--- a/servers/slapd/back-ldap/chain.c
+++ b/servers/slapd/back-ldap/chain.c
@@ -1979,6 +1979,11 @@ ldap_chain_db_close(
 	BackendDB	*be,
 	ConfigReply	*cr )
 {
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+#ifdef SLAP_CONFIG_DELETE
+	overlay_unregister_control( be, LDAP_CONTROL_X_CHAINING_BEHAVIOR );
+#endif /* SLAP_CONFIG_DELETE */
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
 	return ldap_chain_db_func( be, db_close );
 }
 
diff --git a/servers/slapd/overlays/ppolicy.c b/servers/slapd/overlays/ppolicy.c
index 43cc345..048bf89 100644
--- a/servers/slapd/overlays/ppolicy.c
+++ b/servers/slapd/overlays/ppolicy.c
@@ -2308,6 +2308,11 @@ ppolicy_close(
 	slap_overinst *on = (slap_overinst *) be->bd_info;
 	pp_info *pi = on->on_bi.bi_private;
 
+
+#ifdef SLAP_CONFIG_DELETE
+	overlay_unregister_control( be, LDAP_CONTROL_PASSWORDPOLICYREQUEST );
+#endif /* SLAP_CONFIG_DELETE */
+
 	/* Perhaps backover should provide bi_destroy hooks... */
 	ov_count--;
 	if ( ov_count <=0 && pwcons ) {
diff --git a/servers/slapd/overlays/syncprov.c b/servers/slapd/overlays/syncprov.c
index 1100de7..814f95e 100644
--- a/servers/slapd/overlays/syncprov.c
+++ b/servers/slapd/overlays/syncprov.c
@@ -3143,6 +3143,7 @@ syncprov_db_close(
 {
     slap_overinst   *on = (slap_overinst *) be->bd_info;
     syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
+	syncops *so, *sonext;
 
 	if ( slapMode & SLAP_TOOL_MODE ) {
 		return 0;
@@ -3162,6 +3163,20 @@ syncprov_db_close(
 		syncprov_checkpoint( op, on );
 	}
 
+#ifdef SLAP_CONFIG_DELETE
+	ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
+	for ( so=si->si_ops, sonext=so;  so; so=sonext  ) {
+		SlapReply rs = {REP_RESULT};
+		rs.sr_err = LDAP_UNAVAILABLE;
+		send_ldap_result( so->s_op, &rs );
+		sonext=so->s_next;
+		syncprov_drop_psearch( so, 0);
+	}
+	si->si_ops=NULL;
+	ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
+	overlay_unregister_control( be, LDAP_CONTROL_SYNC );
+#endif /* SLAP_CONFIG_DELETE */
+
     return 0;
 }
 
diff --git a/servers/slapd/overlays/valsort.c b/servers/slapd/overlays/valsort.c
index 80d9382..033cbf6 100644
--- a/servers/slapd/overlays/valsort.c
+++ b/servers/slapd/overlays/valsort.c
@@ -490,6 +490,10 @@ valsort_destroy(
 	slap_overinst *on = (slap_overinst *)be->bd_info;
 	valsort_info *vi = on->on_bi.bi_private, *next;
 
+#ifdef SLAP_CONFIG_DELETE
+	overlay_unregister_control( be, LDAP_CONTROL_VALSORT );
+#endif /* SLAP_CONFIG_DELETE */
+
 	for (; vi; vi = next) {
 		next = vi->vi_next;
 		ch_free( vi->vi_dn.bv_val );
diff --git a/servers/slapd/proto-slap.h b/servers/slapd/proto-slap.h
index 1aebece..bb0dd63 100644
--- a/servers/slapd/proto-slap.h
+++ b/servers/slapd/proto-slap.h
@@ -484,6 +484,9 @@ LDAP_SLAPD_F (void) overlay_move LDAP_P((
 #ifdef SLAP_CONFIG_DELETE
 LDAP_SLAPD_F (void) overlay_remove LDAP_P((
 	BackendDB *be, slap_overinst *on ));
+LDAP_SLAPD_F (void) overlay_unregister_control LDAP_P((
+	BackendDB *be,
+	const char *oid ));
 #endif /* SLAP_CONFIG_DELETE */
 LDAP_SLAPD_F (int) overlay_callback_after_backover LDAP_P((
 	Operation *op, slap_callback *sc, int append ));
-- 
1.7.3.4