diff --git a/libc/kernel/uapi/linux/cryptouser.h b/libc/kernel/uapi/linux/cryptouser.h
new file mode 100644
index 0000000..2a7bc39
--- /dev/null
+++ b/libc/kernel/uapi/linux/cryptouser.h
@@ -0,0 +1,111 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+enum {
+  CRYPTO_MSG_BASE = 0x10,
+  CRYPTO_MSG_NEWALG = 0x10,
+  CRYPTO_MSG_DELALG,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  CRYPTO_MSG_UPDATEALG,
+  CRYPTO_MSG_GETALG,
+  CRYPTO_MSG_DELRNG,
+  __CRYPTO_MSG_MAX
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+#define CRYPTO_MSG_MAX (__CRYPTO_MSG_MAX - 1)
+#define CRYPTO_NR_MSGTYPES (CRYPTO_MSG_MAX + 1 - CRYPTO_MSG_BASE)
+#define CRYPTO_MAX_NAME CRYPTO_MAX_ALG_NAME
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+enum crypto_attr_type_t {
+  CRYPTOCFGA_UNSPEC,
+  CRYPTOCFGA_PRIORITY_VAL,
+  CRYPTOCFGA_REPORT_LARVAL,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  CRYPTOCFGA_REPORT_HASH,
+  CRYPTOCFGA_REPORT_BLKCIPHER,
+  CRYPTOCFGA_REPORT_AEAD,
+  CRYPTOCFGA_REPORT_COMPRESS,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  CRYPTOCFGA_REPORT_RNG,
+  CRYPTOCFGA_REPORT_CIPHER,
+  CRYPTOCFGA_REPORT_AKCIPHER,
+  __CRYPTOCFGA_MAX
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
+};
+struct crypto_user_alg {
+  char cru_name[CRYPTO_MAX_ALG_NAME];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  char cru_driver_name[CRYPTO_MAX_ALG_NAME];
+  char cru_module_name[CRYPTO_MAX_ALG_NAME];
+  __u32 cru_type;
+  __u32 cru_mask;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  __u32 cru_refcnt;
+  __u32 cru_flags;
+};
+struct crypto_report_larval {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  char type[CRYPTO_MAX_NAME];
+};
+struct crypto_report_hash {
+  char type[CRYPTO_MAX_NAME];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  unsigned int blocksize;
+  unsigned int digestsize;
+};
+struct crypto_report_cipher {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  char type[CRYPTO_MAX_ALG_NAME];
+  unsigned int blocksize;
+  unsigned int min_keysize;
+  unsigned int max_keysize;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct crypto_report_blkcipher {
+  char type[CRYPTO_MAX_NAME];
+  char geniv[CRYPTO_MAX_NAME];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  unsigned int blocksize;
+  unsigned int min_keysize;
+  unsigned int max_keysize;
+  unsigned int ivsize;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct crypto_report_aead {
+  char type[CRYPTO_MAX_NAME];
+  char geniv[CRYPTO_MAX_NAME];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  unsigned int blocksize;
+  unsigned int maxauthsize;
+  unsigned int ivsize;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct crypto_report_comp {
+  char type[CRYPTO_MAX_NAME];
+};
+struct crypto_report_rng {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  char type[CRYPTO_MAX_NAME];
+  unsigned int seedsize;
+};
+struct crypto_report_akcipher {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  char type[CRYPTO_MAX_NAME];
+};
+#define CRYPTO_REPORT_MAXSIZE (sizeof(struct crypto_user_alg) + sizeof(struct crypto_report_blkcipher))