devices: Use path to check device type

FreeBSD device numbers cannot be used to check the type of a device, as
they are merely unique filesystem IDs.

As the paths we use have been sanitized with realpath, we can simply use
the path to check if a requested file is an evdev or drm device. This
also allows us to make the check before the file is opened.

1 files changed, 7 insertions, 1 deletions

diff --git a/include/seat.h b/include/seat.h
index e52a961..e0d3533 100644
--- a/include/seat.h
+++ b/include/seat.h
@@ -8,13 +8,19 @@
 
 struct client;
 
+enum seat_device_type {
+	SEAT_DEVICE_TYPE_NORMAL,
+	SEAT_DEVICE_TYPE_EVDEV,
+	SEAT_DEVICE_TYPE_DRM,
+};
+
 struct seat_device {
 	int device_id;
 	int fd;
 	int ref_cnt;
 	bool active;
 	char *path;
-	dev_t dev;
+	enum seat_device_type type;
 };
 
 struct seat {