/*
* 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 <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <strings.h>
#include <fcntl.h>
#include <unistd.h>
#include <libscf.h>
#include <libscf_priv.h>
#include <libuutil.h>
#include "rcapd.h"
#include "rcapd_conf.h"
#include "rcapd_stat.h"
#include "utils.h"
/*
* Read configuration and set the fields of an rcfg_t correspondingly.
* Verify that the statistics file is writable, with the optional
* verify_stat_file_creation() callback.
*/
int
rcfg_read(rcfg_t *_rcfg, int(*verify_stat_file_creation)(void))
{
scf_simple_handle_t *simple_h;
uint64_t count_val;
int ret = E_ERROR;
rcfg_init(_rcfg);
if ((simple_h = scf_general_pg_setup(RCAP_FMRI, CONFIG_PG))
== NULL) {
warn(gettext("SMF initialization problem: %s\n"),
scf_strerror(scf_error()));
goto err;
}
if (scf_read_count_property(simple_h, PRESSURE, &count_val)
== SCF_FAILED) {
warn(gettext("Configuration property '%s' "
"not found. \n"), PRESSURE);
goto err;
} else {
if (count_val > 100)
_rcfg->rcfg_memory_cap_enforcement_pressure = 100;
else
_rcfg->rcfg_memory_cap_enforcement_pressure
= count_val;
debug("cap max pressure: %d%%\n",
_rcfg->rcfg_memory_cap_enforcement_pressure);
}
if (scf_read_count_property(simple_h, RECONFIG_INT, &count_val)
== SCF_FAILED) {
warn(gettext("Configuration property '%s' "
"not found. \n"), RECONFIG_INT);
goto err;
} else {
_rcfg->rcfg_reconfiguration_interval = count_val;
debug("reconfiguration interval: %d seconds\n",
_rcfg->rcfg_reconfiguration_interval);
}
if (scf_read_count_property(simple_h, REPORT_INT, &count_val)
== SCF_FAILED) {
warn(gettext("Configuration property '%s' "
"not found. \n"), REPORT_INT);
goto err;
} else {
_rcfg->rcfg_report_interval = count_val;
debug("report interval: %d seconds\n",
_rcfg->rcfg_report_interval);
}
if (scf_read_count_property(simple_h, RSS_SAMPLE_INT, &count_val)
== SCF_FAILED) {
warn(gettext("Configuration property '%s' "
"not found. \n"), RSS_SAMPLE_INT);
goto err;
} else {
_rcfg->rcfg_rss_sample_interval = count_val;
debug("RSS sample interval: %d seconds\n",
_rcfg->rcfg_rss_sample_interval);
}
if (scf_read_count_property(simple_h, WALK_INT, &count_val)
== SCF_FAILED) {
warn(gettext("Configuration property '%s' "
"not found. \n"), WALK_INT);
goto err;
} else {
_rcfg->rcfg_proc_walk_interval = count_val;
debug("proc_walk interval: %d seconds\n",
_rcfg->rcfg_proc_walk_interval);
}
if (_rcfg->rcfg_mode_name == NULL) {
/*
* Set project mode, by default.
*/
_rcfg->rcfg_mode = rctype_project;
_rcfg->rcfg_mode_name = "project";
debug("mode: %s\n", _rcfg->rcfg_mode_name);
}
if (verify_stat_file_creation != 0 && verify_stat_file_creation()
!= 0) {
warn(gettext("cannot create statistics file, " "%s"),
_rcfg->rcfg_stat_file);
goto err;
}
debug("done parsing\n");
ret = E_SUCCESS;
goto out;
err:
if (scf_error() != SCF_ERROR_NONE) {
warn(gettext("Unexpected libscf error: %s. \n"),
scf_strerror(scf_error()));
}
out:
scf_simple_handle_destroy(simple_h);
return (ret);
}
void
rcfg_init(rcfg_t *rcfg)
{
bzero(rcfg, sizeof (*rcfg));
(void) strcpy(rcfg->rcfg_stat_file, STAT_FILE_DEFAULT);
}
/*
* Modify configuration in repository given the rcfg_t structure.
*/
int
modify_config(rcfg_t *conf)
{
scf_simple_handle_t *simple_h;
scf_transaction_t *tx = NULL;
int rval, ret = E_ERROR;
if ((simple_h = scf_general_pg_setup(RCAP_FMRI, CONFIG_PG))
== NULL) {
warn(gettext("SMF initialization problem: %s\n"),
scf_strerror(scf_error()));
goto out;
}
if ((tx = scf_transaction_setup(simple_h)) == NULL) {
warn(gettext("SMF initialization problem: %s\n"),
scf_strerror(scf_error()));
goto out;
}
do {
if (scf_set_count_property(tx, PRESSURE,
conf->rcfg_memory_cap_enforcement_pressure, 0)
!= SCF_SUCCESS) {
warn(gettext("Couldn't set '%s' property. \n"),
PRESSURE);
goto out;
}
if (scf_set_count_property(tx, RECONFIG_INT,
conf->rcfg_reconfiguration_interval, 0) != SCF_SUCCESS) {
warn(gettext("Couldn't set '%s' property. \n"),
RECONFIG_INT);
goto out;
}
if (scf_set_count_property(tx, RSS_SAMPLE_INT,
conf->rcfg_rss_sample_interval, 0) != SCF_SUCCESS) {
warn(gettext("Couldn't set '%s' property. \n"),
RSS_SAMPLE_INT);
goto out;
}
if (scf_set_count_property(tx, REPORT_INT,
conf->rcfg_report_interval, 0) != SCF_SUCCESS) {
warn(gettext("Couldn't set '%s' property. \n"),
REPORT_INT);
goto out;
}
if (scf_set_count_property(tx, WALK_INT,
conf->rcfg_proc_walk_interval, 0) != SCF_SUCCESS) {
warn(gettext("Couldn't set '%s' property. \n"),
WALK_INT);
goto out;
}
if ((rval = scf_transaction_commit(tx)) == -1)
goto out;
if (rval == 0) {
if (scf_transaction_restart(simple_h, tx)
!= SCF_SUCCESS) {
warn(gettext("SMF initialization problem: "
"%s\n"), scf_strerror(scf_error()));
goto out;
}
}
} while (rval == 0);
ret = E_SUCCESS;
out:
if (tx != NULL) {
scf_transaction_destroy_children(tx);
scf_transaction_destroy(tx);
}
scf_simple_handle_destroy(simple_h);
return (ret);
}