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-rw-r--r--source4/librpc/rpc/dcerpc.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/source4/librpc/rpc/dcerpc.c b/source4/librpc/rpc/dcerpc.c
index 331a6b018e..4440395e94 100644
--- a/source4/librpc/rpc/dcerpc.c
+++ b/source4/librpc/rpc/dcerpc.c
@@ -60,6 +60,7 @@ struct rpc_request {
uint16_t opnum;
DATA_BLOB request_data;
bool ignore_timeout;
+ bool wait_for_sync;
/* use by the ndr level async recv call */
struct {
@@ -1535,6 +1536,7 @@ static void dcerpc_ship_next_request(struct dcecli_connection *c)
bool first_packet = true;
size_t sig_size = 0;
bool need_async = false;
+ bool can_async = true;
req = c->request_queue;
if (req == NULL) {
@@ -1548,6 +1550,32 @@ static void dcerpc_ship_next_request(struct dcecli_connection *c)
need_async = true;
}
+ if (c->security_state.auth_info &&
+ c->security_state.generic_state)
+ {
+ struct gensec_security *gensec = c->security_state.generic_state;
+
+ switch (c->security_state.auth_info->auth_level) {
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ can_async = gensec_have_feature(gensec,
+ GENSEC_FEATURE_ASYNC_REPLIES);
+ break;
+ case DCERPC_AUTH_LEVEL_CONNECT:
+ case DCERPC_AUTH_LEVEL_NONE:
+ can_async = true;
+ break;
+ default:
+ can_async = false;
+ break;
+ }
+ }
+
+ if (need_async && !can_async) {
+ req->wait_for_sync = true;
+ return;
+ }
+
DLIST_REMOVE(c->request_queue, req);
DLIST_ADD(c->pending, req);
req->state = RPC_REQUEST_PENDING;
@@ -1662,6 +1690,10 @@ static void dcerpc_schedule_io_trigger(struct dcecli_connection *c)
return;
}
+ if (c->request_queue->wait_for_sync && c->pending) {
+ return;
+ }
+
if (c->io_trigger_pending) {
return;
}