diff --git a/libc/kernel/uapi/linux/nbd.h b/libc/kernel/uapi/linux/nbd.h
new file mode 100644
index 0000000..53736e9
--- /dev/null
+++ b/libc/kernel/uapi/linux/nbd.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 _UAPILINUX_NBD_H
+#define _UAPILINUX_NBD_H
+#include <linux/types.h>
+#define NBD_SET_SOCK _IO( 0xab, 0 )
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define NBD_SET_BLKSIZE _IO( 0xab, 1 )
+#define NBD_SET_SIZE _IO( 0xab, 2 )
+#define NBD_DO_IT _IO( 0xab, 3 )
+#define NBD_CLEAR_SOCK _IO( 0xab, 4 )
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define NBD_CLEAR_QUE _IO( 0xab, 5 )
+#define NBD_PRINT_DEBUG _IO( 0xab, 6 )
+#define NBD_SET_SIZE_BLOCKS _IO( 0xab, 7 )
+#define NBD_DISCONNECT _IO( 0xab, 8 )
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define NBD_SET_TIMEOUT _IO( 0xab, 9 )
+#define NBD_SET_FLAGS _IO( 0xab, 10)
+enum {
+ NBD_CMD_READ = 0,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ NBD_CMD_WRITE = 1,
+ NBD_CMD_DISC = 2,
+ NBD_CMD_FLUSH = 3,
+ NBD_CMD_TRIM = 4
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+#define NBD_FLAG_HAS_FLAGS (1 << 0)
+#define NBD_FLAG_READ_ONLY (1 << 1)
+#define NBD_FLAG_SEND_FLUSH (1 << 2)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define NBD_FLAG_SEND_TRIM (1 << 5)
+#define nbd_cmd(req) ((req)->cmd[0])
+#define NBD_REQUEST_MAGIC 0x25609513
+#define NBD_REPLY_MAGIC 0x67446698
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct nbd_request {
+ __be32 magic;
+ __be32 type;
+ char handle[8];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __be64 from;
+ __be32 len;
+} __attribute__((packed));
+struct nbd_reply {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __be32 magic;
+ __be32 error;
+ char handle[8];
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif