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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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <stdlib.h>
#include <string.h>
#include <libscf.h>
#include <pthread.h>
#include "isns_server.h"
#include "isns_log.h"
#include "isns_cfg.h"
/*
* external variables
*/
extern uint64_t esi_threshold;
extern uint8_t mgmt_scn;
extern ctrl_node_t *control_nodes;
extern pthread_mutex_t ctrl_node_mtx;
extern char data_store[MAXPATHLEN];
#define DEFAULT_ESI_THRESHOLD 3
#define MAX_ESI_THRESHOLD 10
/*
* load_config loads config data through SMF.
* arg DATA_STORE_UPDATE indicates whether the data store location
* can be updated or not.
*/
int
load_config(boolean_t DATA_STORE_UPDATE)
{
int retval = -1;
scf_handle_t *handle = NULL;
scf_scope_t *sc = NULL;
scf_service_t *svc = NULL;
scf_propertygroup_t *pg = NULL;
scf_property_t *prop = NULL;
scf_value_t *value = NULL;
scf_iter_t *value_iter = NULL;
ctrl_node_t *ctrl_node_p;
char scf_name[MAXNAMELEN];
char *name;
/* connect to the current SMF global repository */
handle = scf_handle_create(SCF_VERSION);
/* allocate scf resources */
sc = scf_scope_create(handle);
svc = scf_service_create(handle);
pg = scf_pg_create(handle);
prop = scf_property_create(handle);
value = scf_value_create(handle);
value_iter = scf_iter_create(handle);
/* if failed to allocate resources, exit */
if (handle == NULL || sc == NULL || svc == NULL || pg == NULL ||
prop == NULL || value == NULL || value_iter == NULL) {
isnslog(LOG_DEBUG, "load_config",
"scf handles allocation failed.");
goto out;
}
/* bind scf handle to the running svc.configd daemon */
if (scf_handle_bind(handle) == -1) {
isnslog(LOG_DEBUG, "load_config", "scf binding failed.");
goto out;
}
/* get the scope of the localhost in the current repository */
if (scf_handle_get_scope(handle, SCF_SCOPE_LOCAL, sc) == -1) {
isnslog(LOG_DEBUG, "load_config", "Getting scf scope failed.");
goto out;
}
/* get the service "network/isns_server" within the scope */
if (scf_scope_get_service(sc, ISNS_SERVER_SVC_NAME, svc) == -1) {
isnslog(LOG_DEBUG, "load_config", "Getting %s service failed.",
ISNS_SERVER_SVC_NAME);
goto out;
}
/* get the property group "config" within the given service */
if (scf_service_get_pg(svc, ISNS_SERVER_CONFIG, pg) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting property group %s failed.",
ISNS_SERVER_CONFIG);
goto out;
}
/*
* Now get the properties.
*/
if (scf_pg_get_property(pg, CONFIG_ESI_THRESHOLD, prop) == -1) {
isnslog(LOG_DEBUG, "load_config", "Getting property %s failed",
CONFIG_ESI_THRESHOLD);
goto out;
}
if (scf_property_get_value(prop, value) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting property value for %s failed.",
CONFIG_ESI_THRESHOLD);
goto out;
}
if (scf_value_get_count(value, &esi_threshold) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting property integer value for %s failed.",
CONFIG_ESI_THRESHOLD);
goto out;
}
/* the range of ESI Threshold is [1, 10] */
if (esi_threshold < 1) {
esi_threshold = DEFAULT_ESI_THRESHOLD; /* 3 */
} else if (esi_threshold > MAX_ESI_THRESHOLD) {
esi_threshold = MAX_ESI_THRESHOLD; /* 10 */
}
isnslog(LOG_DEBUG, "load_config",
"%s set to %d", CONFIG_ESI_THRESHOLD, esi_threshold);
if (scf_pg_get_property(pg, CONFIG_MGMT_SCN, prop) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting scf property %s failed.", CONFIG_MGMT_SCN);
goto out;
}
if (scf_property_get_value(prop, value) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting property value for %s failed.",
CONFIG_MGMT_SCN);
goto out;
}
if (scf_value_get_boolean(value, &mgmt_scn) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting boolean value for property %s failed",
CONFIG_MGMT_SCN);
goto out;
}
isnslog(LOG_DEBUG, "load_config",
"%s set to %s", CONFIG_MGMT_SCN,
mgmt_scn ? "true" : "false");
if (DATA_STORE_UPDATE) {
if (scf_pg_get_property(pg, CONFIG_DATA_STORE, prop) == -1) {
isnslog(LOG_DEBUG, "load_config", "Getting property %s failed",
CONFIG_DATA_STORE);
goto out;
}
if (scf_property_get_value(prop, value) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting property value for %s failed",
CONFIG_DATA_STORE);
goto out;
}
data_store[0] = 0;
if (scf_value_get_astring(value, data_store, MAXPATHLEN) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting property string value for %s failed",
CONFIG_DATA_STORE);
goto out;
}
isnslog(LOG_DEBUG, "load_config",
"%s set to %s", CONFIG_DATA_STORE, data_store);
}
if (scf_pg_get_property(pg, CONFIG_CONTROL_NODES, prop) == -1) {
isnslog(LOG_DEBUG, "load_config", "Getting property %s failed",
CONFIG_CONTROL_NODES);
goto out;
}
if (scf_iter_property_values(value_iter, prop) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting iteration property %s failed",
CONFIG_CONTROL_NODES);
goto out;
}
/* remove any old control node first. */
(void) pthread_mutex_lock(&ctrl_node_mtx);
while (control_nodes != NULL) {
ctrl_node_p = control_nodes->next;
free(control_nodes->name);
free(control_nodes);
control_nodes = ctrl_node_p;
}
while (scf_iter_next_value(value_iter, value) != 0) {
if (scf_value_get_ustring(value, scf_name, MAXNAMELEN) == -1) {
isnslog(LOG_DEBUG, "load_config",
"Getting property string value for %s failed",
CONFIG_CONTROL_NODES);
(void) pthread_mutex_unlock(&ctrl_node_mtx);
goto out;
}
ctrl_node_p = (ctrl_node_t *)malloc(sizeof (ctrl_node_t));
if (ctrl_node_p == NULL) {
isnslog(LOG_DEBUG, "load_config", "malloc() failed.");
(void) pthread_mutex_unlock(&ctrl_node_mtx);
goto out;
}
if (strlen(scf_name) != 0) {
name = (char *)malloc(strlen(scf_name) + 1);
if (name == NULL) {
free(ctrl_node_p);
isnslog(LOG_DEBUG, "load_config", "malloc() failed.");
(void) pthread_mutex_unlock(&ctrl_node_mtx);
goto out;
} else {
(void) strcpy(name, scf_name);
ctrl_node_p->name = (uchar_t *)name;
ctrl_node_p->next = control_nodes;
control_nodes = ctrl_node_p;
}
isnslog(LOG_DEBUG, "load_config",
"%s set to %s", CONFIG_CONTROL_NODES, scf_name);
} else {
free(ctrl_node_p);
}
}
(void) pthread_mutex_unlock(&ctrl_node_mtx);
isnslog(LOG_DEBUG, "load_config", "loading server settings ok.");
retval = 0; /* ok */
out:
/* destroy scf pointers */
if (value != NULL) {
scf_value_destroy(value);
}
if (value_iter != NULL) {
scf_iter_destroy(value_iter);
}
if (prop != NULL) {
scf_property_destroy(prop);
}
if (pg != NULL) {
scf_pg_destroy(pg);
}
if (svc != NULL) {
scf_service_destroy(svc);
}
if (sc != NULL) {
scf_scope_destroy(sc);
}
if (handle != NULL) {
scf_handle_destroy(handle);
}
return (retval);
}
/*
* is_control_node checks the given name to see if it is a control node.
*/
int
is_control_node(
uchar_t *name
)
{
ctrl_node_t *p;
(void) pthread_mutex_lock(&ctrl_node_mtx);
p = control_nodes;
while (p != NULL) {
if (strcmp((char *)p->name, (char *)name) == 0) {
(void) pthread_mutex_unlock(&ctrl_node_mtx);
return (1);
}
p = p->next;
}
(void) pthread_mutex_unlock(&ctrl_node_mtx);
return (0);
}
|
