diff --git a/libc/kernel/common/linux/loop.h b/libc/kernel/common/linux/loop.h
new file mode 100644
index 0000000..9cdfd38
--- /dev/null
+++ b/libc/kernel/common/linux/loop.h
@@ -0,0 +1,77 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_LOOP_H
+#define _LINUX_LOOP_H
+
+#define LO_NAME_SIZE 64
+#define LO_KEY_SIZE 32
+
+enum {
+ LO_FLAGS_READ_ONLY = 1,
+ LO_FLAGS_USE_AOPS = 2,
+};
+
+#include <asm/posix_types.h>  
+#include <asm/types.h>  
+
+struct loop_info {
+ int lo_number;
+ __kernel_old_dev_t lo_device;
+ unsigned long lo_inode;
+ __kernel_old_dev_t lo_rdevice;
+ int lo_offset;
+ int lo_encrypt_type;
+ int lo_encrypt_key_size;
+ int lo_flags;
+ char lo_name[LO_NAME_SIZE];
+ unsigned char lo_encrypt_key[LO_KEY_SIZE];
+ unsigned long lo_init[2];
+ char reserved[4];
+};
+
+struct loop_info64 {
+ __u64 lo_device;
+ __u64 lo_inode;
+ __u64 lo_rdevice;
+ __u64 lo_offset;
+ __u64 lo_sizelimit;
+ __u32 lo_number;
+ __u32 lo_encrypt_type;
+ __u32 lo_encrypt_key_size;
+ __u32 lo_flags;
+ __u8 lo_file_name[LO_NAME_SIZE];
+ __u8 lo_crypt_name[LO_NAME_SIZE];
+ __u8 lo_encrypt_key[LO_KEY_SIZE];
+ __u64 lo_init[2];
+};
+
+#define LO_CRYPT_NONE 0
+#define LO_CRYPT_XOR 1
+#define LO_CRYPT_DES 2
+#define LO_CRYPT_FISH2 3  
+#define LO_CRYPT_BLOW 4
+#define LO_CRYPT_CAST128 5
+#define LO_CRYPT_IDEA 6
+#define LO_CRYPT_DUMMY 9
+#define LO_CRYPT_SKIPJACK 10
+#define LO_CRYPT_CRYPTOAPI 18
+#define MAX_LO_CRYPT 20
+
+#define LOOP_SET_FD 0x4C00
+#define LOOP_CLR_FD 0x4C01
+#define LOOP_SET_STATUS 0x4C02
+#define LOOP_GET_STATUS 0x4C03
+#define LOOP_SET_STATUS64 0x4C04
+#define LOOP_GET_STATUS64 0x4C05
+#define LOOP_CHANGE_FD 0x4C06
+
+#endif