OpenSolaris Launch

1 files changed, 72 insertions, 0 deletions

diff --git a/usr/src/uts/common/sys/random.h b/usr/src/uts/common/sys/random.h
new file mode 100644
index 0000000000..2628277964
--- /dev/null
+++ b/usr/src/uts/common/sys/random.h
@@ -0,0 +1,72 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_SYS_RANDOM_H
+#define	_SYS_RANDOM_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/types.h>
+#include <sys/atomic.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/* stats for the random number devices, /dev/random and /dev/urandom. */
+typedef struct rnd_stats {
+	uint64_t	rs_rndOut;	/* Bytes generated for /dev/random */
+	uint64_t	rs_rndcOut;	/* Bytes read from /dev/random cache */
+	uint64_t	rs_urndOut;	/* Bytes generated for /dev/urandom */
+} rnd_stats_t;
+
+/* stats for the kernel random number provider, swrand. */
+typedef struct swrand_stats {
+	uint32_t	ss_entEst;	/* Entropy estimate in bits */
+	uint64_t	ss_entIn;	/* Entropy bits added to pool */
+	uint64_t	ss_entOut;	/* Entropy bits extracted from pool */
+	uint64_t	ss_bytesIn;	/* Total data bytes added to pool */
+	uint64_t	ss_bytesOut;	/* Total data bytes extracted from */
+					/* the pool */
+} swrand_stats_t;
+
+#ifdef	_KERNEL
+
+#define	BUMP_CPU_RND_STATS(rm, x, v)    (((rm)->rm_stats).x += (v))
+#define	BUMP_RND_STATS(x, v)	atomic_add_64(&(rnd_stats).x, (v))
+#define	BUMP_SWRAND_STATS(x, v)	atomic_add_64(&(swrand_stats).x, (v))
+
+extern int random_add_entropy(uint8_t *, size_t, uint16_t);
+extern int random_get_bytes(uint8_t *, size_t);
+extern int random_get_pseudo_bytes(uint8_t *, size_t);
+
+#endif /* _KERNEL */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _SYS_RANDOM_H */