diff --git a/libc/kernel/uapi/linux/ioam6.h b/libc/kernel/uapi/linux/ioam6.h
new file mode 100644
index 0000000..e32c8e9
--- /dev/null
+++ b/libc/kernel/uapi/linux/ioam6.h
@@ -0,0 +1,63 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_LINUX_IOAM6_H
+#define _UAPI_LINUX_IOAM6_H
+#include <asm/byteorder.h>
+#include <linux/types.h>
+#define IOAM6_U16_UNAVAILABLE U16_MAX
+#define IOAM6_U32_UNAVAILABLE U32_MAX
+#define IOAM6_U64_UNAVAILABLE U64_MAX
+#define IOAM6_DEFAULT_ID (IOAM6_U32_UNAVAILABLE >> 8)
+#define IOAM6_DEFAULT_ID_WIDE (IOAM6_U64_UNAVAILABLE >> 8)
+#define IOAM6_DEFAULT_IF_ID IOAM6_U16_UNAVAILABLE
+#define IOAM6_DEFAULT_IF_ID_WIDE IOAM6_U32_UNAVAILABLE
+struct ioam6_hdr {
+  __u8 opt_type;
+  __u8 opt_len;
+  __u8 : 8;
+#define IOAM6_TYPE_PREALLOC 0
+  __u8 type;
+} __attribute__((packed));
+struct ioam6_trace_hdr {
+  __be16 namespace_id;
+#ifdef __LITTLE_ENDIAN_BITFIELD
+  __u8 : 1, : 1, overflow : 1, nodelen : 5;
+  __u8 remlen : 7, : 1;
+  union {
+    __be32 type_be32;
+    struct {
+      __u32 bit7 : 1, bit6 : 1, bit5 : 1, bit4 : 1, bit3 : 1, bit2 : 1, bit1 : 1, bit0 : 1, bit15 : 1, bit14 : 1, bit13 : 1, bit12 : 1, bit11 : 1, bit10 : 1, bit9 : 1, bit8 : 1, bit23 : 1, bit22 : 1, bit21 : 1, bit20 : 1, bit19 : 1, bit18 : 1, bit17 : 1, bit16 : 1, : 8;
+    } type;
+  };
+#elif defined(__BIG_ENDIAN_BITFIELD)
+  __u8 nodelen : 5, overflow : 1, : 1, : 1;
+  __u8 : 1, remlen : 7;
+  union {
+    __be32 type_be32;
+    struct {
+      __u32 bit0 : 1, bit1 : 1, bit2 : 1, bit3 : 1, bit4 : 1, bit5 : 1, bit6 : 1, bit7 : 1, bit8 : 1, bit9 : 1, bit10 : 1, bit11 : 1, bit12 : 1, bit13 : 1, bit14 : 1, bit15 : 1, bit16 : 1, bit17 : 1, bit18 : 1, bit19 : 1, bit20 : 1, bit21 : 1, bit22 : 1, bit23 : 1, : 8;
+    } type;
+  };
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+#define IOAM6_TRACE_DATA_SIZE_MAX 244
+  __u8 data[0];
+} __attribute__((packed));
+#endif