cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / linux / random.h

diff --git a/i686-linux-gnu-4.7/usr/include/linux/random.h b/i686-linux-gnu-4.7/usr/include/linux/random.h
new file mode 100644 (file)
index 0000000..912ff7b
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/linux/random.h
@@ -0,0 +1,56 @@
+/* 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.) */
+#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[0];
+};
+
+/*
+ * Flags for getrandom(2)
+ *
+ * GRND_NONBLOCK       Don't block and return EAGAIN instead
+ * GRND_RANDOM         Use the /dev/random pool instead of /dev/urandom
+ */
+#define GRND_NONBLOCK  0x0001
+#define GRND_RANDOM    0x0002
+
+#endif /* _LINUX_RANDOM_H */