lustre-snmp.c 22.98 KiB
/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
* GPL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved
* Use is subject to license terms.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
* snmp/lustre-snmp.c
*
* Author: PJ Kirner <pjkirner@clusterfs.com>
*/
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include <net-snmp/utilities.h>
#include <pthread.h>
#include "lustre-snmp.h"
/*
* clusterFileSystems_variables_oid:
* this is the top level oid that we want to register under. This
* is essentially a prefix, with the suffix appearing in the
* variable below.
*/
oid clusterFileSystems_variables_oid[] = { 1,3,6,1,4,1,13140 };
/*
* variable7 clusterFileSystems_variables:
* this variable defines function callbacks and type return information
* for the clusterFileSystems mib section
*/
struct variable7 clusterFileSystems_variables[] = {
/* magic number , variable type , ro/rw , callback fn , L, oidsuffix */
/* sytemInformation 2.1.1. */
{ SYSVERSION , ASN_OCTET_STR , RONLY , var_clusterFileSystems, 4, { 2,1,1,1 } }, { SYSKERNELVERSION , ASN_OCTET_STR , RONLY , var_clusterFileSystems, 4, { 2,1,1,2 } },
{ SYSHEALTHCHECK , ASN_OCTET_STR , RONLY , var_clusterFileSystems, 4, { 2,1,1,3 } },
{ SYSSTATUS , ASN_INTEGER , RWRITE, var_clusterFileSystems, 4, { 2,1,1,4 } },
/* objectStorageTargets 2.1.2 */
{ OSDNUMBER , ASN_UNSIGNED , RONLY , var_clusterFileSystems, 4, { 2,1,2,1 } },
/* objectStorageTargets.osdTable.osdEntry 2.1.2.2.1 */
{ OSDUUID , ASN_OCTET_STR , RONLY , var_osdTable, 6, { 2,1,2,2,1,2 } },
{ OSDCOMMONNAME , ASN_OCTET_STR , RONLY , var_osdTable, 6, { 2,1,2,2,1,3 } },
{ OSDCAPACITY , ASN_COUNTER64 , RONLY , var_osdTable, 6, { 2,1,2,2,1,4 } },
{ OSDFREECAPACITY , ASN_COUNTER64 , RONLY , var_osdTable, 6, { 2,1,2,2,1,5 } },
{ OSDOBJECTS , ASN_COUNTER64 , RONLY , var_osdTable, 6, { 2,1,2,2,1,6 } },
{ OSDFREEOBJECTS , ASN_COUNTER64 , RONLY , var_osdTable, 6, { 2,1,2,2,1,7 } },
/* objectStorageClients 2.1.3 */
{ OSCNUMBER , ASN_UNSIGNED , RONLY , var_clusterFileSystems, 4, { 2,1,3,1 } },
/* objectStorageClients.oscTable.oscEntry 2.1.3.2.1 */
{ OSCUUID , ASN_OCTET_STR , RONLY , var_oscTable, 6, { 2,1,3,2,1,2 } },
{ OSCCOMMONNAME , ASN_OCTET_STR , RONLY , var_oscTable, 6, { 2,1,3,2,1,3 } },
{ OSCOSTSERVERUUID , ASN_OCTET_STR , RONLY , var_oscTable, 6, { 2,1,3,2,1,4 } },
{ OSCCAPACITY , ASN_COUNTER64 , RONLY , var_oscTable, 6, { 2,1,3,2,1,5 } },
{ OSCFREECAPACITY , ASN_COUNTER64 , RONLY , var_oscTable, 6, { 2,1,3,2,1,6 } },
{ OSCOBJECTS , ASN_COUNTER64 , RONLY , var_oscTable, 6, { 2,1,3,2,1,7 } },
{ OSCFREEOBJECTS , ASN_COUNTER64 , RONLY , var_oscTable, 6, { 2,1,3,2,1,8 } },
/* metaDataServers 2.1.4 */
{ MDDNUMBER , ASN_UNSIGNED , RONLY , var_clusterFileSystems, 4, { 2,1,4,1 } },
/* metaDataServers.mddTable.mddEntry 2.1.4.2.1 */
{ MDDUUID , ASN_OCTET_STR , RONLY , var_mdsTable, 6, { 2,1,4,2,1,2 } },
{ MDDCOMMONNAME , ASN_OCTET_STR , RONLY , var_mdsTable, 6, { 2,1,4,2,1,3 } },
{ MDDCAPACITY , ASN_COUNTER64 , RONLY , var_mdsTable, 6, { 2,1,4,2,1,4 } },
{ MDDFREECAPACITY , ASN_COUNTER64 , RONLY , var_mdsTable, 6, { 2,1,4,2,1,5 } },
{ MDDFILES , ASN_COUNTER64 , RONLY , var_mdsTable, 6, { 2,1,4,2,1,6 } },
{ MDDFREEFILES , ASN_COUNTER64 , RONLY , var_mdsTable, 6, { 2,1,4,2,1,7 } },
{ MDSNBSAMPLEDREQ , ASN_COUNTER64 , RONLY , var_mdsNbSampledReq, 4, { 2,1,4,3 } },
/* metaDataClients 2.1.5 */
{ MDCNUMBER , ASN_UNSIGNED , RONLY , var_clusterFileSystems, 4, { 2,1,5,1 } },
/* metaDataClients.mdcTable.mdcEntry 2.1.5.2.1 */
{ MDCUUID , ASN_OCTET_STR , RONLY , var_mdcTable, 6, { 2,1,5,2,1,2 } },
{ MDCCOMMONNAME , ASN_OCTET_STR , RONLY , var_mdcTable, 6, { 2,1,5,2,1,3 } },
{ MDCMDSSERVERUUID , ASN_OCTET_STR , RONLY , var_mdcTable, 6, { 2,1,5,2,1,4 } },
{ MDCCAPACITY , ASN_COUNTER64 , RONLY , var_mdcTable, 6, { 2,1,5,2,1,5 } },
{ MDCFREECAPACITY , ASN_COUNTER64 , RONLY , var_mdcTable, 6, { 2,1,5,2,1,6 } },
{ MDCOBJECTS , ASN_COUNTER64 , RONLY , var_mdcTable, 6, { 2,1,5,2,1,7 } },
{ MDCFREEOBJECTS , ASN_COUNTER64 , RONLY , var_mdcTable, 6, { 2,1,5,2,1,8 } },
/* lustreClients 2.1.6 */
{ CLIMOUNTNUMBER , ASN_UNSIGNED , RONLY , var_clusterFileSystems, 4, { 2,1,6,1 } },
/* lustreClients.cliMountTable.cliMountEntry 2.1.6.2.1 */
{ CLIUUID , ASN_OCTET_STR , RONLY , var_cliTable, 6, { 2,1,6,2,1,2 } },
{ CLICOMMONNAME , ASN_OCTET_STR , RONLY , var_cliTable, 6, { 2,1,6,2,1,3 } },
{ CLIMDCUUID , ASN_OCTET_STR , RONLY , var_cliTable, 6, { 2,1,6,2,1,4 } },
{ CLIMDCCOMMONNAME , ASN_OCTET_STR , RONLY , var_cliTable, 6, { 2,1,6,2,1,5 } },
{ CLIUSESLOV , ASN_INTEGER , RONLY , var_cliTable, 6, { 2,1,6,2,1,6 } },
{ CLILOVUUID , ASN_OCTET_STR , RONLY , var_cliTable, 6, { 2,1,6,2,1,7 } },
{ CLILOVCOMMONNAME , ASN_OCTET_STR , RONLY , var_cliTable, 6, { 2,1,6,2,1,8 } },
/* logicalObjectVolume 2.1.7 */
{ LOVNUMBER , ASN_UNSIGNED , RONLY , var_clusterFileSystems, 4, { 2,1,7,1 } },
/* logicalObjectVolume.osdTable.lovTable 2.1.2.2.1 */
{ LOVUUID , ASN_OCTET_STR , RONLY , var_lovTable, 6, { 2,1,7,2,1,2 } },
{ LOVCOMMONNAME , ASN_OCTET_STR , RONLY , var_lovTable, 6, { 2,1,7,2,1,3 } }, { LOVNUMOBD , ASN_UNSIGNED , RONLY , var_lovTable, 6, { 2,1,7,2,1,4 } },
{ LOVNUMACTIVEOBD , ASN_UNSIGNED , RONLY , var_lovTable, 6, { 2,1,7,2,1,5 } },
{ LOVCAPACITY , ASN_COUNTER64 , RONLY , var_lovTable, 6, { 2,1,7,2,1,6 } },
{ LOVFREECAPACITY , ASN_COUNTER64 , RONLY , var_lovTable, 6, { 2,1,7,2,1,7 } },
{ LOVFILES , ASN_COUNTER64 , RONLY , var_lovTable, 6, { 2,1,7,2,1,8 } },
{ LOVFREEFILES , ASN_COUNTER64 , RONLY , var_lovTable, 6, { 2,1,7,2,1,9 } },
{ LOVSTRIPECOUNT , ASN_UNSIGNED , RONLY , var_lovTable, 6, { 2,1,7,2,1,10} },
{ LOVSTRIPEOFFSET , ASN_UNSIGNED , RONLY , var_lovTable, 6, { 2,1,7,2,1,11} },
{ LOVSTRIPESIZE , ASN_UNSIGNED , RONLY , var_lovTable, 6, { 2,1,7,2,1,12} },
{ LOVSTRIPETYPE , ASN_UNSIGNED , RONLY , var_lovTable, 6, { 2,1,7,2,1,13} },
/* lustreLDLM 2.1.8 */
{ LDLMNUMBER , ASN_UNSIGNED , RONLY , var_clusterFileSystems, 4, { 2,1,8,1 } },
/* lustreLDLM.ldlmTable.ldlmEntry 2.1.8.2.1 */
{ LDLMNAMESPACE , ASN_OCTET_STR , RONLY , var_ldlmTable, 6, { 2,1,8,2,1,2 } },
{ LDLMLOCKCOUNT , ASN_UNSIGNED , RONLY , var_ldlmTable, 6, { 2,1,8,2,1,3 } },
{ LDLMUNUSEDLOCKCOUNT , ASN_UNSIGNED , RONLY , var_ldlmTable, 6, { 2,1,8,2,1,4 } },
{ LDLMRESOURCECOUNT , ASN_UNSIGNED , RONLY , var_ldlmTable, 6, { 2,1,8,2,1,5 } },
};
/*****************************************************************************
* Function: init_cfsNetSNMPPlugin
*
* Description: Called when the agent starts up
*
* Input: void
*
* Output: None
*
****************************************************************************/
void init_lustresnmp(void) {
/* register ourselves with the agent to handle our mib tree */
REGISTER_MIB("clusterFileSystems", clusterFileSystems_variables, variable7,
clusterFileSystems_variables_oid);
initilize_trap_handler();
DEBUGMSGTL(("lsnmpd", "%s %s \n", __FUNCTION__, "Initialization Done"));
}
/*****************************************************************************
* Function: deinit_cfsNetSNMPPlugin
*
* Description: Called when the agent terminates up
*
* Input: void
*
* Output: None
*
****************************************************************************/
void deinit_lustresnmp(void) {
/* deregister ourselves with the agent */
unregister_mib(clusterFileSystems_variables_oid,
sizeof(clusterFileSystems_variables_oid)/sizeof(clusterFileSystems_variables_oid));
terminate_trap_handler();
DEBUGMSGTL(("lsnmpd", "%s %s \n", __FUNCTION__, "Termination Done"));
}
/*****************************************************************************
* Function: var_clusterFileSystems
*
****************************************************************************/unsigned char *
var_clusterFileSystems(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len,
WriteMethod **write_method)
{
/* variables we may use later */
static long long_ret;
static u_long ulong_ret;
static unsigned char string[SPRINT_MAX_LEN];
char file_path[MAX_PATH_SIZE];
uint32_t num;
char *dir_list;
if (header_generic(vp,name,length,exact,var_len,write_method)
== MATCH_FAILED )
return NULL;
/*
* this is where we do the value assignments for the mib results.
*/
switch(vp->magic) {
case SYSVERSION:
sprintf(file_path, "%s%s", LUSTRE_PATH,"version");
if( SUCCESS != read_string(file_path, string,sizeof(string)))
return NULL;
*var_len = strlen(string);
return (unsigned char *) string;
case SYSKERNELVERSION:
sprintf(file_path, "%s%s", LUSTRE_PATH,"kernel_version");
if( SUCCESS != read_string(file_path, string,sizeof(string)))
return NULL;
*var_len = strlen(string);
return (unsigned char *) string;
case SYSHEALTHCHECK:
sprintf(file_path, "%s%s", LUSTRE_PATH,FILENAME_SYSHEALTHCHECK);
if( SUCCESS != read_string(file_path, string,sizeof(string)))
return NULL;
*var_len = strlen(string);
return (unsigned char *) string;
case SYSSTATUS:
*write_method = write_sysStatus;
long_ret = (long) get_sysstatus();
if (long_ret != ERROR)
return (unsigned char *) &long_ret;
return NULL;
case OSDNUMBER:
if( 0 == (dir_list = get_file_list(OSD_PATH, DIR_TYPE, &num)))
return NULL;
DEBUGMSGTL(("lsnmpd","num(%s)=%d\n",OSD_PATH,num));
ulong_ret = num;
free(dir_list);
return (unsigned char *) &ulong_ret;
case OSCNUMBER:
if( 0 == (dir_list = get_file_list(OSC_PATH, DIR_TYPE, &num)))
return NULL;
DEBUGMSGTL(("lsnmpd","num(%s)=%d\n",OSC_PATH,num));
ulong_ret = num;
free(dir_list); return (unsigned char *) &ulong_ret;
case MDDNUMBER:
if( 0 == (dir_list = get_file_list(MDS_PATH, DIR_TYPE, &num)))
return NULL;
DEBUGMSGTL(("lsnmpd","num(%s)=%d\n",MDS_PATH,num));
ulong_ret = num;
free(dir_list);
return (unsigned char *) &ulong_ret;
case MDCNUMBER:
if( 0 == (dir_list = get_file_list(MDC_PATH, DIR_TYPE, &num)))
return NULL;
DEBUGMSGTL(("lsnmpd","num(%s)=%d\n",MDC_PATH,num));
ulong_ret = num;
free(dir_list);
return (unsigned char *) &ulong_ret;
case CLIMOUNTNUMBER:
if( 0 == (dir_list = get_file_list(CLIENT_PATH, DIR_TYPE, &num)))
return NULL;
DEBUGMSGTL(("lsnmpd","num(%s)=%d\n",CLIENT_PATH,num));
ulong_ret = num;
free(dir_list);
return (unsigned char *) &ulong_ret;
case LOVNUMBER:
if( 0 == (dir_list = get_file_list(LOV_PATH, DIR_TYPE, &num)))
return NULL;
DEBUGMSGTL(("lsnmpd","num(%s)=%d\n",LOV_PATH,num));
ulong_ret = num;
free(dir_list);
return (unsigned char *) &ulong_ret;
case LDLMNUMBER:
if( 0 == (dir_list = get_file_list(LDLM_PATH, DIR_TYPE, &num)))
return NULL;
DEBUGMSGTL(("lsnmpd","num(%s)=%d\n",LDLM_PATH,num));
ulong_ret = num;
free(dir_list);
return (unsigned char *) &ulong_ret;
default:
ERROR_MSG("");
}
return NULL;
}
struct oid_table osd_table[] =
{
{ OSDUUID,FILENAME_UUID,oid_table_string_handler},
{ OSDCOMMONNAME,0,oid_table_obj_name_handler},
{ OSDCAPACITY,FILENAME_KBYTES_TOTAL, oid_table_c64_kb_handler},
{ OSDFREECAPACITY,FILENAME_KBYTES_FREE, oid_table_c64_kb_handler},
{ OSDOBJECTS,FILENAME_FILES_TOTAL, oid_table_c64_kb_handler},
{ OSDFREEOBJECTS,FILENAME_FILES_FREE, oid_table_c64_kb_handler},
{ 0,0,0 } /*End of table*/
};
/*****************************************************************************
* Function: var_osdTable
*
****************************************************************************/
unsigned char *
var_osdTable(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len, WriteMethod **write_method)
{
return var_genericTable(vp,name,length,exact,var_len,write_method,
OSD_PATH,osd_table);
}
struct oid_table osc_table[] =
{
{ OSCUUID,FILENAME_UUID,oid_table_string_handler},
{ OSCCOMMONNAME,0,oid_table_obj_name_handler},
{ OSCOSTSERVERUUID,"ost_server_uuid",oid_table_string_handler},
{ OSCCAPACITY,FILENAME_KBYTES_TOTAL, oid_table_c64_kb_handler},
{ OSCFREECAPACITY,FILENAME_KBYTES_FREE, oid_table_c64_kb_handler},
{ OSCOBJECTS,FILENAME_FILES_TOTAL, oid_table_c64_kb_handler},
{ OSCFREEOBJECTS,FILENAME_FILES_FREE, oid_table_c64_kb_handler},
{ 0,0,0 } /*End of table*/
};
/*****************************************************************************
* Function: var_oscTable
*
****************************************************************************/
unsigned char *
var_oscTable(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len,
WriteMethod **write_method)
{
return var_genericTable(vp,name,length,exact,var_len,write_method,
OSC_PATH,osc_table);
}
struct oid_table mds_table[] =
{
{ MDDUUID,FILENAME_UUID,oid_table_string_handler},
{ MDDCOMMONNAME,0,oid_table_obj_name_handler},
{ MDDCAPACITY,FILENAME_KBYTES_TOTAL, oid_table_c64_kb_handler},
{ MDDFREECAPACITY,FILENAME_KBYTES_FREE, oid_table_c64_kb_handler},
{ MDDFILES,FILENAME_FILES_TOTAL, oid_table_c64_kb_handler},
{ MDDFREEFILES,FILENAME_FILES_FREE, oid_table_c64_kb_handler},
{ 0,0,0 } /*End of table*/
};
/*****************************************************************************
* Function: var_mdsTable
*
****************************************************************************/
unsigned char *
var_mdsTable(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len,
WriteMethod **write_method)
{
return var_genericTable(vp,name,length,exact,var_len,write_method,
MDS_PATH,mds_table);
}
struct oid_table mdc_table[] =
{
{ MDCUUID,FILENAME_UUID,oid_table_string_handler},
{ MDCCOMMONNAME,0,oid_table_obj_name_handler},
{ MDCMDSSERVERUUID,"mds_server_uuid",oid_table_string_handler},
{ MDCCAPACITY,FILENAME_KBYTES_TOTAL, oid_table_c64_kb_handler},
{ MDCFREECAPACITY,FILENAME_KBYTES_FREE, oid_table_c64_kb_handler},
{ MDCOBJECTS,FILENAME_FILES_TOTAL, oid_table_c64_kb_handler},
{ MDCFREEOBJECTS,FILENAME_FILES_FREE, oid_table_c64_kb_handler}, { 0,0,0 } /*End of table*/
};
/*****************************************************************************
* Function: var_mdcTable
*
****************************************************************************/
unsigned char *
var_mdcTable(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len,
WriteMethod **write_method)
{
return var_genericTable(vp,name,length,exact,var_len,write_method,
MDC_PATH,mdc_table);
}
struct oid_table cli_table[] =
{
{ CLIUUID,FILENAME_UUID,oid_table_string_handler},
{ CLICOMMONNAME,0,oid_table_obj_name_handler},
{ CLIMDCUUID,"mdc/" FILENAME_UUID,oid_table_string_handler},
{ CLIMDCCOMMONNAME,"mdc/" FILENAME_COMMON_NAME,oid_table_string_handler},
{ CLIUSESLOV,"lov/",oid_table_is_directory_handler},
{ CLILOVUUID,"lov/" FILENAME_UUID,oid_table_string_handler},
{ CLILOVCOMMONNAME,"lov/" FILENAME_COMMON_NAME,oid_table_string_handler},
{ 0,0,0 } /*End of table*/
};
/*****************************************************************************
* Function: var_cliTable
*
****************************************************************************/
unsigned char *
var_cliTable(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len,
WriteMethod **write_method)
{
return var_genericTable(vp,name,length,exact,var_len,write_method,
CLIENT_PATH,cli_table);
}
struct oid_table lov_table[] =
{
{ LOVUUID,FILENAME_UUID,oid_table_string_handler},
{ LOVCOMMONNAME,0,oid_table_obj_name_handler},
{ LOVNUMOBD,"numobd", oid_table_ulong_handler},
{ LOVNUMACTIVEOBD,"activeobd", oid_table_ulong_handler},
{ LOVCAPACITY,FILENAME_KBYTES_TOTAL, oid_table_c64_kb_handler},
{ LOVFREECAPACITY,FILENAME_KBYTES_FREE, oid_table_c64_kb_handler},
{ LOVFILES,FILENAME_FILES_TOTAL, oid_table_c64_kb_handler},
{ LOVFREEFILES,FILENAME_FILES_FREE, oid_table_c64_kb_handler},
{ LOVSTRIPECOUNT,"stripecount", oid_table_ulong_handler},
{ LOVSTRIPEOFFSET,"stripeoffset", oid_table_ulong_handler},
{ LOVSTRIPESIZE,"stripesize", oid_table_ulong_handler},
{ LOVSTRIPETYPE,"stripetype", oid_table_ulong_handler},
{ 0,0,0 } /*End of table*/
};
/*****************************************************************************
* Function: var_lovTable *
****************************************************************************/
unsigned char *
var_lovTable(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len,
WriteMethod **write_method)
{
return var_genericTable(vp,name,length,exact,var_len,write_method,
LOV_PATH,lov_table);
}
struct oid_table ldlm_table[] =
{
{ LDLMNAMESPACE,0,oid_table_obj_name_handler},
{ LDLMLOCKCOUNT,"lock_count", oid_table_ulong_handler},
{ LDLMUNUSEDLOCKCOUNT,"lock_unused_count", oid_table_ulong_handler},
{ LDLMRESOURCECOUNT,"resource_count", oid_table_ulong_handler},
{ 0,0,0 } /*End of table*/
};
/*****************************************************************************
* Function: var_ldlmTable
*
****************************************************************************/
unsigned char *
var_ldlmTable(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len,
WriteMethod **write_method)
{
return var_genericTable(vp,name,length,exact,var_len,write_method,
LDLM_PATH,ldlm_table);
}
/*****************************************************************************
* Function: var_mdsNbSampledReq
*
****************************************************************************/
unsigned char *
var_mdsNbSampledReq(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len,
WriteMethod **write_method)
{
unsigned long long nb_sample=0,min=0,max=0,sum=0,sum_square=0;
static counter64 c64;
if (header_generic(vp,name,length,exact,var_len,write_method)
== MATCH_FAILED )
return NULL;
if( mds_stats_values(STR_REQ_WAITIME,&nb_sample,&min,&max,&sum,&sum_square) == ERROR) return NULL;
c64.low = (u_long) (0x0FFFFFFFF & nb_sample);
nb_sample >>= 32;
c64.high = (u_long) (0x0FFFFFFFF & nb_sample);
*var_len = sizeof(c64);
return (unsigned char *) &c64;
}
/*****************************************************************************
* Function: write_sysStatus
*
****************************************************************************/
int
write_sysStatus(int action,
u_char *var_val,
u_char var_val_type,
size_t var_val_len,
u_char *statP,
oid *name,
size_t name_len)
{
static long *long_ret;
int size;
int pid, new_value;
switch ( action ) {
case RESERVE1:
if (var_val_type != ASN_INTEGER){
fprintf(stderr, "write to sysStatus not ASN_INTEGER\n");
return SNMP_ERR_WRONGTYPE;
}
if (var_val_len > sizeof(long_ret)){
fprintf(stderr,"write to sysStatus: bad length\n");
return SNMP_ERR_WRONGLENGTH;
}
if ((*var_val != ONLINE) &&
(*var_val != OFFLINE) &&
(*var_val != RESTART)){
report("%s %s:line %d %s", __FILE__, __FUNCTION__, __LINE__,
"sysStatus value is invalid.");
return SNMP_ERR_WRONGVALUE;
}
break;
case RESERVE2:
size = var_val_len;
long_ret = (long *) var_val;
break;
case FREE:
/* Release any resources that have been allocated */
break;
case ACTION:
/* The variable has been stored in long_ret for
you to use, and you have just been asked to do something with
it. Note that anything done here must be reversable in the UNDO case */
new_value = *(int *) var_val;
switch (new_value) {
case ONLINE:
lustrefs_ctrl(ONLINE);
break;
case OFFLINE:
lustrefs_ctrl(OFFLINE);
break;
case RESTART:
lustrefs_ctrl(RESTART);
break;
default:
break;
}
break;
case UNDO:
/* Back out any changes made in the ACTION case */
break;
case COMMIT:
/* Things are working well, so it's now safe to make the change
permanently. Make sure that anything done here can't fail! */
break;
}
return SNMP_ERR_NOERROR;
}