s4:winbind: let wb_sam_logon_send/recv() use the netlogon_queue (bug #9097)

metze

1 files changed, 30 insertions, 3 deletions

diff --git a/source4/winbind/wb_sam_logon.c b/source4/winbind/wb_sam_logon.c
index 39c2254ff8e..32fddd2e0a6 100644
--- a/source4/winbind/wb_sam_logon.c
+++ b/source4/winbind/wb_sam_logon.c
@@ -37,6 +37,8 @@ struct wb_sam_logon_state {
 
 	struct winbind_SamLogon *req;
 
+	struct wbsrv_domain *domain;
+	struct tevent_queue_entry *queue_entry;
         struct netlogon_creds_CredentialState *creds_state;
         struct netr_Authenticator auth1, auth2;
 
@@ -45,6 +47,7 @@ struct wb_sam_logon_state {
 };
 
 static void wb_sam_logon_recv_domain(struct composite_context *ctx);
+static void wb_sam_logon_queue_trigger(struct tevent_req *req, void *priv);
 static void wb_sam_logon_recv_samlogon(struct tevent_req *subreq);
 
 /*
@@ -89,15 +92,34 @@ static void wb_sam_logon_recv_domain(struct composite_context *csubreq)
 	struct wb_sam_logon_state *state =
 		tevent_req_data(req,
 		struct wb_sam_logon_state);
-	struct wbsrv_domain *domain;
-	struct tevent_req *subreq;
 	NTSTATUS status;
+	struct tevent_queue_entry *e;
 
-	status = wb_sid2domain_recv(csubreq, &domain);
+	status = wb_sid2domain_recv(csubreq, &state->domain);
 	if (tevent_req_nterror(req, status)) {
 		return;
 	}
 
+	/*
+	 * Because of the netlogon_creds behavior we have to
+	 * queue the netr_LogonSamLogon() calls
+	 */
+	e = tevent_queue_add_entry(state->domain->netlogon_queue,
+				   state->ev,
+				   req,
+				   wb_sam_logon_queue_trigger,
+				   NULL);
+	state->queue_entry = e;
+}
+
+static void wb_sam_logon_queue_trigger(struct tevent_req *req, void *priv)
+{
+	struct wb_sam_logon_state *state =
+		tevent_req_data(req,
+		struct wb_sam_logon_state);
+	struct wbsrv_domain *domain = state->domain;
+	struct tevent_req *subreq;
+
 	state->creds_state = cli_credentials_get_netlogon_creds(domain->libnet_ctx->cred);
 	netlogon_creds_client_authenticator(state->creds_state, &state->auth1);
 
@@ -190,6 +212,11 @@ static void wb_sam_logon_recv_samlogon(struct tevent_req *subreq)
 					state->r.in.validation_level,
 					state->r.out.validation);
 
+	/*
+	 * we do not need the netlogon_creds lock anymore
+	 */
+	TALLOC_FREE(state->queue_entry);
+
 	tevent_req_done(req);
 }