1 files changed, 111 insertions, 0 deletions
diff --git a/usr/src/lib/sun_fc/common/Sun_fcAdapterCreateWWN.cc b/usr/src/lib/sun_fc/common/Sun_fcAdapterCreateWWN.cc
new file mode 100644
index 0000000000..8e1f607530
--- /dev/null
+++ b/usr/src/lib/sun_fc/common/Sun_fcAdapterCreateWWN.cc
@@ -0,0 +1,111 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (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 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+
+
+#include <fstream>
+#include "fcntl.h"
+#include "Handle.h"
+#include "Trace.h"
+#include "Exceptions.h"
+#include "sun_fc.h"
+
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+void get_random_bytes(HBA_UINT8 *ptr, size_t len) {
+	int fd = open("/dev/urandom", O_RDONLY);
+	size_t resid = len;
+	ssize_t bytes;
+
+	while (resid != 0) {
+		bytes = read(fd, ptr, resid);
+		ptr += bytes;
+		resid -= bytes;
+	}
+	close (fd);
+	return;
+}
+
+HBA_STATUS Sun_fcAdapterCreateWWN(HBA_HANDLE handle,
+    HBA_UINT32 portindex, HBA_WWN *nwwn, HBA_WWN *pwwn,
+    HBA_WWN *OUI, HBA_INT32 method) {
+	HBA_UINT8	randombyte[5] = {0};
+	HBA_WWN		randomwwn = {0};
+	int		index = 0;
+
+        Trace log("Sun_fcAdapterCreateWWN");
+
+        if ((nwwn == NULL) || (pwwn == NULL)) {
+                log.userError(
+                    "NULL WWN pointer");
+                return (HBA_STATUS_ERROR_ARG);
+        }
+	if (method == HBA_CREATE_WWN_FACTORY) {
+		return (HBA_STATUS_ERROR_NOT_SUPPORTED);
+	}
+
+        try {
+		/* create EUI-64 Mapped WWN */
+		if (OUI == NULL) {
+			/* if no OUI spec'd, used one of Sun's */
+			randomwwn.wwn[index++] = 0x0;
+			randomwwn.wwn[index++] = 0x0;
+			randomwwn.wwn[index++] = 0x7D;
+		} else {
+			memcpy(randomwwn.wwn, OUI->wwn, sizeof(HBA_WWN));
+			index += 3;
+		}
+		/* 
+		 * for EUI-64 mapped, shift OUI first byte right two bits
+		 * then set top two bits to 11
+		 */
+		randomwwn.wwn[0] = randomwwn.wwn[0] >> 2;
+		randomwwn.wwn[0] = randomwwn.wwn[0] | 0xc0;
+
+		/* now create and add 40 random bits */	
+		get_random_bytes(randombyte, 5);
+		memcpy(randomwwn.wwn+index, randombyte, 5);
+
+		memcpy(nwwn->wwn, randomwwn.wwn, sizeof(HBA_WWN));
+
+		/* toggle lowest bit, to make NWWN and PWWN unique */
+		randomwwn.wwn[7] = randomwwn.wwn[7] ^ 1;
+		memcpy(pwwn->wwn, randomwwn.wwn, sizeof(HBA_WWN));
+
+                return (HBA_STATUS_OK);
+        } catch (HBAException &e) {
+                return (e.getErrorCode());
+        } catch (...) {
+                log.internalError(
+                    "Uncaught exception");
+                return (HBA_STATUS_ERROR);
+        }
+}
+#ifdef  __cplusplus
+}
+#endif