librpc: Make "dcesrv_context->callbacks" a pointer

This structure just grew from 3 to 6 pointers, avoid making a copy of
this. All callers of dcesrv_init_context() have this as a static
struct in the C object, so a pointer to that won't change.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

6 files changed, 19 insertions, 13 deletions

diff --git a/librpc/rpc/dcesrv_auth.c b/librpc/rpc/dcesrv_auth.c
index 1f09bf0d18e..6bbac4e0160 100644
--- a/librpc/rpc/dcesrv_auth.c
+++ b/librpc/rpc/dcesrv_auth.c
@@ -79,7 +79,7 @@ static bool dcesrv_auth_prepare_gensec(struct dcesrv_call_state *call)
 {
 	struct dcesrv_connection *dce_conn = call->conn;
 	struct dcesrv_auth *auth = call->auth_state;
-	struct dcesrv_context_callbacks *cb = &call->conn->dce_ctx->callbacks;
+	struct dcesrv_context_callbacks *cb = call->conn->dce_ctx->callbacks;
 	NTSTATUS status;
 
 	if (auth->auth_started) {
@@ -249,7 +249,7 @@ void dcesrv_default_auth_state_prepare_request(struct dcesrv_call_state *call)
 {
 	struct dcesrv_connection *dce_conn = call->conn;
 	struct dcesrv_auth *auth = call->auth_state;
-	struct dcesrv_context_callbacks *cb = &call->conn->dce_ctx->callbacks;
+	struct dcesrv_context_callbacks *cb = call->conn->dce_ctx->callbacks;
 
 	if (auth->auth_audited) {
 		return;
@@ -287,7 +287,7 @@ bool dcesrv_auth_bind(struct dcesrv_call_state *call)
 {
 	struct ncacn_packet *pkt = &call->pkt;
 	struct dcesrv_auth *auth = call->auth_state;
-	struct dcesrv_context_callbacks *cb = &call->conn->dce_ctx->callbacks;
+	struct dcesrv_context_callbacks *cb = call->conn->dce_ctx->callbacks;
 	NTSTATUS status;
 
 	if (pkt->auth_length == 0) {
diff --git a/librpc/rpc/dcesrv_core.c b/librpc/rpc/dcesrv_core.c
index a5bfac507f5..70e0245532e 100644
--- a/librpc/rpc/dcesrv_core.c
+++ b/librpc/rpc/dcesrv_core.c
@@ -952,8 +952,8 @@ static NTSTATUS dcesrv_bind(struct dcesrv_call_state *call)
 	conn->max_recv_frag = max_rep;
 	conn->max_xmit_frag = max_rep;
 
-	status = dce_ctx->callbacks.assoc_group.find(
-		call, dce_ctx->callbacks.assoc_group.private_data);
+	status = dce_ctx->callbacks->assoc_group.find(
+		call, dce_ctx->callbacks->assoc_group.private_data);
 	if (!NT_STATUS_IS_OK(status)) {
 		DBG_NOTICE("Failed to find assoc_group 0x%08x: %s\n",
 			   call->pkt.u.bind.assoc_group_id, nt_errstr(status));
@@ -2311,6 +2311,10 @@ _PUBLIC_ NTSTATUS dcesrv_init_context(TALLOC_CTX *mem_ctx,
 {
 	struct dcesrv_context *dce_ctx;
 
+	if (cb == NULL) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
 	dce_ctx = talloc_zero(mem_ctx, struct dcesrv_context);
 	NT_STATUS_HAVE_NO_MEMORY(dce_ctx);
 
@@ -2330,9 +2334,7 @@ _PUBLIC_ NTSTATUS dcesrv_init_context(TALLOC_CTX *mem_ctx,
 		return NT_STATUS_NO_MEMORY;
 	}
 	dce_ctx->broken_connections = NULL;
-	if (cb != NULL) {
-		dce_ctx->callbacks = *cb;
-	}
+	dce_ctx->callbacks = cb;
 
 	*_dce_ctx = dce_ctx;
 	return NT_STATUS_OK;
diff --git a/librpc/rpc/dcesrv_core.h b/librpc/rpc/dcesrv_core.h
index d566aa53217..d8d5f903095 100644
--- a/librpc/rpc/dcesrv_core.h
+++ b/librpc/rpc/dcesrv_core.h
@@ -440,7 +440,7 @@ struct dcesrv_context {
 
 	struct dcesrv_connection *broken_connections;
 
-	struct dcesrv_context_callbacks callbacks;
+	struct dcesrv_context_callbacks *callbacks;
 };
 
 /* this structure is used by modules to determine the size of some critical types */
diff --git a/source3/rpc_server/rpc_ncacn_np.c b/source3/rpc_server/rpc_ncacn_np.c
index 30f2d88d4bf..598efd1f339 100644
--- a/source3/rpc_server/rpc_ncacn_np.c
+++ b/source3/rpc_server/rpc_ncacn_np.c
@@ -488,9 +488,9 @@ static struct tevent_req *rpcint_bh_raw_call_send(TALLOC_CTX *mem_ctx,
 	if (hs->conn->assoc_group == NULL) {
 		ZERO_STRUCT(state->call->pkt);
 		state->call->pkt.u.bind.assoc_group_id = 0;
-		status = dce_ctx->callbacks.assoc_group.find(
+		status = dce_ctx->callbacks->assoc_group.find(
 			state->call,
-			dce_ctx->callbacks.assoc_group.private_data);
+			dce_ctx->callbacks->assoc_group.private_data);
 		if (tevent_req_nterror(req, status)) {
 			return tevent_req_post(req, ev);
 		}
diff --git a/source3/winbindd/winbindd_dual_ndr.c b/source3/winbindd/winbindd_dual_ndr.c
index 39c3a146c03..5f0ec82067c 100644
--- a/source3/winbindd/winbindd_dual_ndr.c
+++ b/source3/winbindd/winbindd_dual_ndr.c
@@ -524,7 +524,7 @@ enum winbindd_result winbindd_dual_ndrcmd(struct winbindd_domain *domain,
 	ZERO_STRUCT(dcesrv_call->pkt);
 	dcesrv_call->pkt.u.bind.assoc_group_id = 0;
 
-	cb = &dcesrv_call->conn->dce_ctx->callbacks;
+	cb = dcesrv_call->conn->dce_ctx->callbacks;
 	status = cb->assoc_group.find(
 		dcesrv_call, cb->assoc_group.private_data);
 	if (!NT_STATUS_IS_OK(status)) {
diff --git a/testsuite/unittests/test_sambafs_srv_pipe.c b/testsuite/unittests/test_sambafs_srv_pipe.c
index 40798b588c7..75797c9bcee 100644
--- a/testsuite/unittests/test_sambafs_srv_pipe.c
+++ b/testsuite/unittests/test_sambafs_srv_pipe.c
@@ -21,6 +21,10 @@ struct test_state {
 	struct dcesrv_context *dce_ctx;
 };
 
+static struct dcesrv_context_callbacks srv_callbacks = {
+	.log.successful_authz = NULL,
+};
+
 static int setup_samr(void **state)
 {
 	TALLOC_CTX *mem_ctx;
@@ -42,7 +46,7 @@ static int setup_samr(void **state)
 	status = dcerpc_register_ep_server(ep_server);
 	assert_true(NT_STATUS_IS_OK(status));
 
-	status = dcesrv_init_context(s, NULL, NULL, &s->dce_ctx);
+	status = dcesrv_init_context(s, NULL, &srv_callbacks, &s->dce_ctx);
 	assert_true(NT_STATUS_IS_OK(status));
 
 	status = dcesrv_init_ep_server(s->dce_ctx, "samr");