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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 <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
#include <fm/fmd_api.h>
#include <fmd_module.h>
#include <fmd_scheme.h>
#include <fmd.h>
#include <libnvpair.h>
#include <libsysevent.h>
#include <errno.h>
#include <string.h>
#include <fpst-defines.h>
static evchan_t *h_event; /* handle for event channel */
static fmd_xprt_t *h_xprt; /* transport handle */
static fmd_hdl_t *h_fmd; /* fmd handle */
static const fmd_hdl_ops_t fps_ops = {
NULL, /* receive */
NULL, /* timeout */
NULL, /* close */
NULL, /* stats */
NULL /* gc */
};
static const fmd_hdl_info_t fmd_info = {
FPS_MOD_DESC,
FPS_MOD_VER,
&fps_ops,
NULL
};
static struct sysev_stats {
fmd_stat_t bad_class;
fmd_stat_t bad_attr;
fmd_stat_t eagain;
} sysev_stats = {
{ "bad_class", FMD_TYPE_UINT64,
"events dropped due to invalid class" },
{ "bad_attr", FMD_TYPE_UINT64,
"events dropped due to invalid nvlist" },
{ "eagain", FMD_TYPE_UINT64, "events retried due to low memory" },
};
static sysevent_subattr_t *subattr;
/*
* event_transfer(sysevent_t *ev, void *arg)
* takes a sysevent ev, extracts the nvlist of
* data for an ereport, and posts it to the fmd.
*/
/* ARGSUSED */
static int
event_transfer(sysevent_t *ev, void *arg)
{
hrtime_t hrt;
nvlist_t *retrieved_list;
uint64_t seq = sysevent_get_seq(ev);
if (strcasecmp(sysevent_get_class_name(ev), CLASS) != 0) {
fmd_hdl_error(h_fmd, "Discarding event 0x%llx: unexpected"
" transport class %s\n", seq,
sysevent_get_class_name(ev));
sysev_stats.bad_class.fmds_value.ui64++;
return (0);
}
if (sysevent_get_attr_list(ev, &retrieved_list) == 0) {
sysevent_get_time(ev, &hrt);
fmd_xprt_post(h_fmd, h_xprt, retrieved_list, hrt);
} else {
if (errno == EAGAIN || errno == ENOMEM) {
sysev_stats.eagain.fmds_value.ui64++;
return (EAGAIN);
}
fmd_hdl_error(h_fmd, "Event: 0x%llx is missing or"
" has an invalid payload.", seq);
sysev_stats.bad_attr.fmds_value.ui64++;
}
return (0);
}
/*
* _fmd_fini(fmd_hdl_t *handle) is the
* module exit point. It unsubscribes
* and unbinds to FPS channel as well
* as closes fmd transport handle
*/
/* ARGSUSED */
void
_fmd_fini(fmd_hdl_t *handle)
{
if (h_event != NULL) {
(void) sysevent_evc_unsubscribe(h_event, SUBSCRIBE_ID);
(void) sysevent_evc_unbind(h_event);
if (subattr != NULL)
sysevent_subattr_free(subattr);
}
if (h_fmd != NULL && h_xprt != NULL)
fmd_xprt_close(h_fmd, h_xprt);
}
/*
* _fmd_init(fmd_hdl_t *hdl) is the
* entry point into the module. It
* registers the handle hdl and
* subscribes to the fps sysevent channel.
*/
void
_fmd_init(fmd_hdl_t *hdl)
{
int ret = 0;
if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0) {
return;
}
(void) fmd_stat_create(hdl, FMD_STAT_NOALLOC, sizeof (sysev_stats) /
sizeof (fmd_stat_t), (fmd_stat_t *)&sysev_stats);
h_xprt = fmd_xprt_open(hdl, FMD_XPRT_RDONLY, NULL, NULL);
h_fmd = hdl;
if (sysevent_evc_bind(CHANNEL, &h_event, BIND_FLAGS) != 0) {
fmd_hdl_error(hdl, "Failed to bind to channel %s", CHANNEL);
fmd_hdl_unregister(hdl);
}
if ((subattr = sysevent_subattr_alloc()) == NULL)
fmd_hdl_abort(hdl, "failed to allocate subscription "
"attributes: %s");
sysevent_subattr_thrcreate(subattr, fmd_doorthr_create, NULL);
sysevent_subattr_thrsetup(subattr, fmd_doorthr_setup, NULL);
ret = sysevent_evc_xsubscribe(h_event, SUBSCRIBE_ID,
SUBSCRIBE_FLAGS, event_transfer, NULL, 0, subattr);
if (ret != 0) {
if (ret == EEXIST) {
fmd_hdl_unregister(hdl);
} else {
fmd_hdl_error(hdl,
"Failed to subsrcibe to channel %s", CHANNEL);
fmd_hdl_unregister(hdl);
}
}
}
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