OpenSolaris Launch

1 files changed, 101 insertions, 0 deletions

diff --git a/usr/src/lib/libmacadm/common/libmacadm.c b/usr/src/lib/libmacadm/common/libmacadm.c
new file mode 100644
index 0000000000..2dd66131aa
--- /dev/null
+++ b/usr/src/lib/libmacadm/common/libmacadm.c
@@ -0,0 +1,101 @@
+/*
+ * 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 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stropts.h>
+#include <sys/dld.h>
+#include <libdevinfo.h>
+
+#define	_KERNEL
+#include <sys/sysmacros.h>
+#undef	_KERNEL
+
+/*
+ * MAC Administration Library.
+ *
+ * This library is used by administration tools such as dladm(1M) to
+ * iterate through the list of MAC interfaces
+ *
+ */
+
+typedef struct macadm_walk {
+	void	*mw_arg;
+	void	(*mw_fn)(void *, const char *, uint_t);
+} macadm_walk_t;
+
+/*
+ * Local callback invoked for each DDI_NT_MAC node.
+ */
+static int
+i_macadm_apply(di_node_t node, di_minor_t minor, void *arg)
+{
+	macadm_walk_t	*mwp = arg;
+	char		dev[MAXNAMELEN];
+	uint_t		port;
+
+	(void) snprintf(dev, MAXNAMELEN, "%s%d",
+	    di_driver_name(node), di_instance(node));
+	port = getminor(di_minor_devt(minor));
+
+	mwp->mw_fn(mwp->mw_arg, dev, port);
+
+	return (DI_WALK_CONTINUE);
+}
+
+/*
+ * Invoke the specified callback for each DDI_NT_MAC node.
+ */
+int
+macadm_walk(void (*fn)(void *, const char *, uint_t), void *arg,
+    boolean_t use_cache)
+{
+	di_node_t	root;
+	macadm_walk_t	mw;
+	uint_t	flags;
+
+	if (use_cache) {
+		flags = DINFOCACHE;
+	} else {
+		flags = DINFOSUBTREE | DINFOMINOR | DINFOPROP | DINFOFORCE;
+	}
+
+	if ((root = di_init("/", flags)) == DI_NODE_NIL) {
+		return (-1);
+	}
+
+	mw.mw_fn = fn;
+	mw.mw_arg = arg;
+
+	(void) di_walk_minor(root, DDI_NT_MAC, 0, &mw, i_macadm_apply);
+	di_fini(root);
+
+	return (0);
+}