1 files changed, 24 insertions, 2 deletions
diff --git a/source3/smbd/process.c b/source3/smbd/process.c
index d617ef1915..c9fc1fbb6a 100644
--- a/source3/smbd/process.c
+++ b/source3/smbd/process.c
@@ -1359,8 +1359,6 @@ static void construct_reply(char *inbuf, int size, size_t unread_bytes, bool enc
 	connection_struct *conn;
 	struct smb_request *req;
 
-	chain_size = 0;
-
 	if (!(req = talloc(talloc_tos(), struct smb_request))) {
 		smb_panic("could not allocate smb_request");
 	}
@@ -2114,3 +2112,27 @@ void smbd_process(void)
 
 	exit_server_cleanly(NULL);
 }
+
+bool req_is_in_chain(struct smb_request *req)
+{
+	if (req->vwv != (uint16_t *)(req->inbuf+smb_vwv)) {
+		/*
+		 * We're right now handling a subsequent request, so we must
+		 * be in a chain
+		 */
+		return true;
+	}
+
+	if (!is_andx_req(req->cmd)) {
+		return false;
+	}
+
+	if (req->wct < 2) {
+		/*
+		 * Okay, an illegal request, but definitely not chained :-)
+		 */
+		return false;
+	}
+
+	return (CVAL(req->vwv+0, 0) != 0xFF);
+}