Add build system scaffolding and libc headers

1 files changed, 76 insertions, 0 deletions

diff --git a/include/arch/x86_64/linux/random.h b/include/arch/x86_64/linux/random.h
new file mode 100644
index 00000000..9e9e90a8
--- /dev/null
+++ b/include/arch/x86_64/linux/random.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * include/linux/random.h
+ *
+ * Include file for the random number generator.
+ */
+
+#ifndef _LINUX_RANDOM_H
+#define _LINUX_RANDOM_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#include <linux/irqnr.h>
+
+/* ioctl()'s for the random number generator */
+
+/* Get the entropy count. */
+#define RNDGETENTCNT _IOR('R', 0x00, int)
+
+/* Add to (or subtract from) the entropy count.  (Superuser only.) */
+#define RNDADDTOENTCNT _IOW('R', 0x01, int)
+
+/* Get the contents of the entropy pool.  (Superuser only.) (Removed
+ * in 2.6.9-rc2.) */
+#define RNDGETPOOL _IOR('R', 0x02, int[2])
+
+/*
+ * Write bytes into the entropy pool and add to the entropy count.
+ * (Superuser only.)
+ */
+#define RNDADDENTROPY _IOW('R', 0x03, int[2])
+
+/* Clear entropy count to 0.  (Superuser only.) */
+#define RNDZAPENTCNT _IO('R', 0x04)
+
+/* Clear the entropy pool and associated counters.  (Superuser only.) */
+#define RNDCLEARPOOL _IO('R', 0x06)
+
+/* Reseed CRNG.  (Superuser only.) */
+#define RNDRESEEDCRNG _IO('R', 0x07)
+
+struct rand_pool_info {
+	int entropy_count;
+	int buf_size;
+	__u32 buf[];
+};
+
+/*
+ * Flags for getrandom(2)
+ *
+ * GRND_NONBLOCK	Don't block and return EAGAIN instead
+ * GRND_RANDOM		No effect
+ * GRND_INSECURE	Return non-cryptographic random bytes
+ */
+#define GRND_NONBLOCK 0x0001
+#define GRND_RANDOM   0x0002
+#define GRND_INSECURE 0x0004
+
+/**
+ * struct vgetrandom_opaque_params - arguments for allocating memory for
+ * vgetrandom
+ *
+ * @size_per_opaque_state:	Size of each state that is to be passed to
+ * vgetrandom().
+ * @mmap_prot:			Value of the prot argument in mmap(2).
+ * @mmap_flags:			Value of the flags argument in mmap(2).
+ * @reserved:			Reserved for future use.
+ */
+struct vgetrandom_opaque_params {
+	__u32 size_of_opaque_state;
+	__u32 mmap_prot;
+	__u32 mmap_flags;
+	__u32 reserved[13];
+};
+
+#endif /* _LINUX_RANDOM_H */