diff --git a/libc/kernel/uapi/linux/psample.h b/libc/kernel/uapi/linux/psample.h
index d90956b..1f8b325 100644
--- a/libc/kernel/uapi/linux/psample.h
+++ b/libc/kernel/uapi/linux/psample.h
@@ -26,6 +26,7 @@
   PSAMPLE_ATTR_GROUP_SEQ,
   PSAMPLE_ATTR_SAMPLE_RATE,
   PSAMPLE_ATTR_DATA,
+  PSAMPLE_ATTR_TUNNEL,
   PSAMPLE_ATTR_GROUP_REFCOUNT,
   __PSAMPLE_ATTR_MAX
 };
@@ -35,6 +36,26 @@
   PSAMPLE_CMD_NEW_GROUP,
   PSAMPLE_CMD_DEL_GROUP,
 };
+enum psample_tunnel_key_attr {
+  PSAMPLE_TUNNEL_KEY_ATTR_ID,
+  PSAMPLE_TUNNEL_KEY_ATTR_IPV4_SRC,
+  PSAMPLE_TUNNEL_KEY_ATTR_IPV4_DST,
+  PSAMPLE_TUNNEL_KEY_ATTR_TOS,
+  PSAMPLE_TUNNEL_KEY_ATTR_TTL,
+  PSAMPLE_TUNNEL_KEY_ATTR_DONT_FRAGMENT,
+  PSAMPLE_TUNNEL_KEY_ATTR_CSUM,
+  PSAMPLE_TUNNEL_KEY_ATTR_OAM,
+  PSAMPLE_TUNNEL_KEY_ATTR_GENEVE_OPTS,
+  PSAMPLE_TUNNEL_KEY_ATTR_TP_SRC,
+  PSAMPLE_TUNNEL_KEY_ATTR_TP_DST,
+  PSAMPLE_TUNNEL_KEY_ATTR_VXLAN_OPTS,
+  PSAMPLE_TUNNEL_KEY_ATTR_IPV6_SRC,
+  PSAMPLE_TUNNEL_KEY_ATTR_IPV6_DST,
+  PSAMPLE_TUNNEL_KEY_ATTR_PAD,
+  PSAMPLE_TUNNEL_KEY_ATTR_ERSPAN_OPTS,
+  PSAMPLE_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE,
+  __PSAMPLE_TUNNEL_KEY_ATTR_MAX
+};
 #define PSAMPLE_ATTR_MAX (__PSAMPLE_ATTR_MAX - 1)
 #define PSAMPLE_NL_MCGRP_CONFIG_NAME "config"
 #define PSAMPLE_NL_MCGRP_SAMPLE_NAME "packets"