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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 (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#include <fm/libtopo.h>
#include <sys/fm/util.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <pthread.h>
#include <libxml/xpathInternals.h>
#include "fabric-xlate.h"
#define XMLTOPOFILE "/var/run/fab-xlate-topo.xml"
fmd_xprt_t *fab_fmd_xprt; /* FMD transport layer handle */
char fab_buf[FM_MAX_CLASS];
/* Static FM Topo XML Format and XML XPath Context */
static xmlDocPtr fab_doc = NULL;
xmlXPathContextPtr fab_xpathCtx = NULL;
static int fab_valid_topo = 0;
static pthread_mutex_t fab_lock = PTHREAD_MUTEX_INITIALIZER;
static void
fab_update_topo(fmd_hdl_t *hdl)
{
topo_hdl_t *thp = NULL;
FILE *fp = NULL;
int err = 0;
int fd = -1;
/* Open the temporary file with proper ownership */
while (fd == -1) {
if ((unlink(XMLTOPOFILE) == -1) && (errno != ENOENT)) {
fmd_hdl_debug(hdl, "Failed to remove XML topo file\n");
return;
}
fd = open(XMLTOPOFILE, O_RDWR | O_CREAT | O_EXCL, 0600);
if ((fd == -1) && (errno != EEXIST)) {
fmd_hdl_debug(hdl, "Failed to create XML topo file\n");
return;
}
}
/* Associate a stream with the temporary file */
if ((fp = fdopen(fd, "w")) == NULL) {
fmd_hdl_debug(hdl, "Failed to open XML topo file\n");
goto cleanup;
}
/* Hold topology */
if ((thp = fmd_hdl_topo_hold(hdl, TOPO_VERSION)) == NULL) {
fmd_hdl_debug(hdl, "Failed to hold topo\n");
goto cleanup;
}
/* Print topology to XML file */
if (topo_xml_print(thp, fp, FM_FMRI_SCHEME_HC, &err) < 0) {
fmd_hdl_debug(hdl, "Failed to get XML topo\n");
fmd_hdl_topo_rele(hdl, thp);
goto cleanup;
}
/* Release topology */
fmd_hdl_topo_rele(hdl, thp);
/* Reload topology from XML file */
if (fab_xpathCtx)
xmlXPathFreeContext(fab_xpathCtx);
if (fab_doc)
xmlFreeDoc(fab_doc);
fab_doc = xmlParseFile(XMLTOPOFILE);
fab_xpathCtx = xmlXPathNewContext(fab_doc);
fab_set_fake_rp(hdl);
fab_valid_topo = 1;
cleanup:
if (fp != NULL)
(void) fclose(fp);
else if (fd != -1)
(void) close(fd);
(void) unlink(XMLTOPOFILE);
}
/*ARGSUSED*/
static void
fab_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl, const char *class)
{
nvlist_t *new_nvl;
(void) pthread_mutex_lock(&fab_lock);
if (!fab_valid_topo)
fab_update_topo(hdl);
(void) pthread_mutex_unlock(&fab_lock);
if (nvlist_dup(nvl, &new_nvl, NV_UNIQUE_NAME) != 0) {
fmd_hdl_error(hdl, "failed to duplicate event");
return;
}
if (fmd_nvl_class_match(hdl, new_nvl, "ereport.io.pci.fabric")) {
fab_xlate_fabric_erpts(hdl, new_nvl, class);
} else {
fab_pr(hdl, ep, new_nvl);
if (fmd_nvl_class_match(hdl, new_nvl,
"ereport.io.pciex.rc.epkt")) {
fab_xlate_epkt_erpts(hdl, new_nvl, class);
} else {
fab_xlate_fire_erpts(hdl, new_nvl, class);
}
}
nvlist_free(new_nvl);
}
/* ARGSUSED */
static void
fab_topo(fmd_hdl_t *hdl, topo_hdl_t *topo)
{
(void) pthread_mutex_lock(&fab_lock);
fab_valid_topo = 0;
(void) pthread_mutex_unlock(&fab_lock);
}
static const fmd_hdl_ops_t fmd_ops = {
fab_recv, /* fmdo_recv */
NULL, /* fmdo_timeout */
NULL, /* fmdo_close */
NULL, /* fmdo_stats */
NULL, /* fmdo_gc */
NULL, /* fmdo_send */
fab_topo, /* fmdo_topo */
};
static const fmd_hdl_info_t fmd_info = {
"Fabric Ereport Translater", "1.0", &fmd_ops, NULL
};
void
_fmd_init(fmd_hdl_t *hdl)
{
if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0)
return;
/* Init libxml */
xmlInitParser();
fab_fmd_xprt = fmd_xprt_open(hdl, FMD_XPRT_RDONLY, NULL, NULL);
fmd_hdl_debug(hdl, "Fabric Translater Started\n");
fab_setup_master_table();
}
void
_fmd_fini(fmd_hdl_t *hdl)
{
/* Fini xpath */
if (fab_xpathCtx)
xmlXPathFreeContext(fab_xpathCtx);
/* Free xml document */
if (fab_doc)
xmlFreeDoc(fab_doc);
/* Fini libxml */
xmlCleanupParser();
fmd_xprt_close(hdl, fab_fmd_xprt);
}
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