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-rw-r--r--source4/dns_server/dlz_bind9.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/source4/dns_server/dlz_bind9.c b/source4/dns_server/dlz_bind9.c
index 224f242b87..4be7aaea83 100644
--- a/source4/dns_server/dlz_bind9.c
+++ b/source4/dns_server/dlz_bind9.c
@@ -65,6 +65,8 @@ struct dlz_bind9_data {
dns_dlz_writeablezone_t *writeable_zone;
};
+static struct dlz_bind9_data *dlz_bind9_state = NULL;
+static int dlz_bind9_state_ref_count = 0;
static const char *zone_prefixes[] = {
"CN=MicrosoftDNS,DC=DomainDnsZones",
@@ -570,6 +572,12 @@ _PUBLIC_ isc_result_t dlz_create(const char *dlzname,
struct ldb_dn *dn;
NTSTATUS nt_status;
+ if (dlz_bind9_state != NULL) {
+ *dbdata = dlz_bind9_state;
+ dlz_bind9_state_ref_count++;
+ return ISC_R_SUCCESS;
+ }
+
state = talloc_zero(NULL, struct dlz_bind9_data);
if (state == NULL) {
return ISC_R_NOMEMORY;
@@ -664,6 +672,8 @@ _PUBLIC_ isc_result_t dlz_create(const char *dlzname,
state->auth_context->generate_session_info_pac = b9_generate_session_info_pac;
*dbdata = state;
+ dlz_bind9_state = state;
+ dlz_bind9_state_ref_count++;
return ISC_R_SUCCESS;
@@ -679,7 +689,13 @@ _PUBLIC_ void dlz_destroy(void *dbdata)
{
struct dlz_bind9_data *state = talloc_get_type_abort(dbdata, struct dlz_bind9_data);
state->log(ISC_LOG_INFO, "samba_dlz: shutting down");
- talloc_free(state);
+
+ dlz_bind9_state_ref_count--;
+ if (dlz_bind9_state_ref_count == 0) {
+ talloc_unlink(state, state->samdb);
+ talloc_free(state);
+ dlz_bind9_state = NULL;
+ }
}