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/*
* 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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <sys/param.h>
#include <topo_error.h>
#include <topo_tree.h>
#include <topo_subr.h>
#include <topo_file.h>
/*
* topo_file.c
*
* This file hides the details of any file manipulation to
* establish topology for a given enumerator.
*/
#define TOPO_DEFAULT_FILE "maps/%s-%s-topology.xml"
#define TOPO_COMMON_FILE "maps/%s-topology.xml"
static void
topo_file_unload(topo_file_t *tfp)
{
if (tfp == NULL)
return;
if (tfp->tf_filenm != NULL)
topo_mod_strfree(tfp->tf_mod, tfp->tf_filenm);
if (tfp->tf_tmap != NULL)
tf_info_free(tfp->tf_mod, tfp->tf_tmap);
topo_mod_free(tfp->tf_mod, tfp, sizeof (topo_file_t));
}
int
topo_file_load(topo_mod_t *mod, tnode_t *node, const char *name,
const char *scheme, int pmap)
{
topo_file_t *tfp;
char fp[MAXNAMELEN];
if ((tfp = topo_mod_zalloc(mod, sizeof (topo_file_t))) == NULL)
return (topo_mod_seterrno(mod, ETOPO_NOMEM));
tfp->tf_mod = mod;
if (name != NULL)
(void) snprintf(fp, MAXNAMELEN, TOPO_DEFAULT_FILE, name,
scheme);
else
(void) snprintf(fp, MAXNAMELEN, TOPO_COMMON_FILE, scheme);
if ((tfp->tf_filenm = topo_search_path(mod, mod->tm_rootdir, fp))
== NULL) {
topo_file_unload(tfp);
return (topo_mod_seterrno(mod, ETOPO_MOD_NOENT));
}
if ((tfp->tf_tmap = topo_xml_read(mod, tfp->tf_filenm, scheme))
== NULL) {
topo_dprintf(mod->tm_hdl, TOPO_DBG_ERR,
"failed to load topology file %s: "
"%s\n", tfp->tf_filenm, topo_strerror(ETOPO_MOD_XRD));
topo_file_unload(tfp);
return (topo_mod_seterrno(mod, ETOPO_MOD_XRD));
}
if (pmap)
tfp->tf_tmap->tf_flags |= TF_PROPMAP;
if (topo_xml_enum(mod, tfp->tf_tmap, node) < 0) {
topo_dprintf(mod->tm_hdl, TOPO_DBG_ERR,
"Failed to enumerate topology: %s\n",
topo_strerror(ETOPO_MOD_XENUM));
topo_file_unload(tfp);
return (topo_mod_seterrno(mod, ETOPO_MOD_XENUM));
}
topo_file_unload(tfp);
return (0);
}
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