Fuck it, this might work

include/hexagram/cluster.h

@@ -1,10 +1,9 @@
 #ifndef _HEXAGRAM_CLUSTER_H
 #define _HEXAGRAM_CLUSTER_H
 
-#include <linux/can.h>
-
 #include <cairo.h>
 
+#include <hexagram/can.h>
 #include <hexagram/tacho.h>
 #include <hexagram/speedo.h>
 #include <hexagram/thermo.h>
@@ -37,6 +36,8 @@ void hexagram_cluster_init(hexagram_cluster *cluster,
 hexagram_cluster *hexagram_cluster_new(double width,
                                        double height);
 
+int hexagram_cluster_filter_can_if(hexagram_can_if *can_if);
+
 int hexagram_cluster_update(hexagram_cluster *cluster,
                             struct can_frame *frame);
 

src/cluster.c

@@ -72,6 +72,20 @@ error_malloc_cluster:
     return NULL;
 }
 
+int hexagram_cluster_filter_can_if(hexagram_can_if *can_if) {
+    struct can_filter filters[3] = {
+        { .can_id = 0x280, .can_mask = 0x3f0 },
+        { .can_id = 0x320, .can_mask = 0x320 },
+        { .can_id = 0x5a0, .can_mask = 0x5a0 }
+    };
+
+    return setsockopt(hexagram_can_if_fd(can_if),
+                      SOL_CAN_RAW,
+                      CAN_RAW_FILTER,
+                      &filters,
+                      sizeof(filters));
+}
+
 int hexagram_cluster_update(hexagram_cluster *cluster,
                             struct can_frame *frame) {
     switch (frame->can_id) {