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/*
* 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>
#include <libdladm.h>
#include <libdlpi.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 *);
} macadm_walk_t;
/*
* Local callback invoked for each DDI_NT_NET node.
*/
/* ARGSUSED */
static int
i_macadm_apply(di_node_t node, di_minor_t minor, void *arg)
{
macadm_walk_t *mwp = arg;
char dev[MAXNAMELEN];
dladm_attr_t dlattr;
int fd;
(void) snprintf(dev, MAXNAMELEN, "%s%d",
di_driver_name(node), di_instance(node));
/*
* We need to be able to report devices that are
* reported by the walker, but have not yet attached
* to the system. Attempting to opening them will
* cause them to temporarely attach and be known
* by dld.
*/
if ((fd = dlpi_open(dev)) == -1 && errno != EPERM)
return (DI_WALK_CONTINUE);
if (fd != 0)
(void) dlpi_close(fd);
/* invoke callback only for non-legacy devices */
if (dladm_info(dev, &dlattr) == 0)
mwp->mw_fn(mwp->mw_arg, dev);
return (DI_WALK_CONTINUE);
}
/*
* Invoke the specified callback for each DDI_NT_MAC node.
*/
int
macadm_walk(void (*fn)(void *, const char *), 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_NET, 0, &mw, i_macadm_apply);
di_fini(root);
return (0);
}
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