void
init_diskio(void)
{
/*
* Define a 'variable' structure that is a representation of our mib.
*/
/*
* first, we have to pick the variable type. They are all defined in
* the var_struct.h file in the agent subdirectory. I'm picking the
* variable2 structure since the longest sub-component of the oid I
* want to load is .2.1 and .2.2 so I need at most 2 spaces in the
* last entry.
*/
struct variable2 diskio_variables[] = {
{DISKIO_INDEX, ASN_INTEGER, RONLY, var_diskio, 1, {1}},
{DISKIO_DEVICE, ASN_OCTET_STR, RONLY, var_diskio, 1, {2}},
{DISKIO_NREAD, ASN_COUNTER, RONLY, var_diskio, 1, {3}},
{DISKIO_NWRITTEN, ASN_COUNTER, RONLY, var_diskio, 1, {4}},
{DISKIO_READS, ASN_COUNTER, RONLY, var_diskio, 1, {5}},
{DISKIO_WRITES, ASN_COUNTER, RONLY, var_diskio, 1, {6}},
#if defined(freebsd4) || defined(freebsd5)
{DISKIO_LA1, ASN_INTEGER, RONLY, var_diskio, 1, {9}},
{DISKIO_LA5, ASN_INTEGER, RONLY, var_diskio, 1, {10}},
{DISKIO_LA15, ASN_INTEGER, RONLY, var_diskio, 1, {11}},
#endif
{DISKIO_NREADX, ASN_COUNTER64, RONLY, var_diskio, 1, {12}},
{DISKIO_NWRITTENX, ASN_COUNTER64, RONLY, var_diskio, 1, {13}},
};
/*
* Define the OID pointer to the top of the mib tree that we're
* registering underneath.
*/
oid diskio_variables_oid[] =
{ 1, 3, 6, 1, 4, 1, 2021, 13, 15, 1, 1 };
/*
* register ourselves with the agent to handle our mib tree
*
* This is a macro defined in ../../snmp_vars.h. The arguments are:
*
* descr: A short description of the mib group being loaded.
* var: The variable structure to load.
* vartype: The variable structure used to define it (variable2, variable4, ...)
* theoid: A *initialized* *exact length* oid pointer.
* (sizeof(theoid) *must* return the number of elements!)
*/
REGISTER_MIB("diskio", diskio_variables, variable2,
diskio_variables_oid);
#ifdef solaris2
kc = kstat_open();
if (kc == NULL)
snmp_log(LOG_ERR, "diskio: Couldn't open kstat\n");
#endif
#ifdef darwin
/*
* Get the I/O Kit communication handle.
*/
IOMasterPort(bootstrap_port, &masterPort);
#endif
#if defined(aix4) || defined(aix5) || defined(aix6)
/*
* initialize values to gather information on first request
*/
ps_numdisks = 0;
ps_disk = NULL;
#endif
#if defined (freebsd4) || defined(freebsd5)
devla_getstats(0, NULL);
/* collect LA data regularly */
snmp_alarm_register(DISKIO_SAMPLE_INTERVAL, SA_REPEAT, devla_getstats, NULL);
#endif
}
void
init_diskio(void)
{
/*
* Define a 'variable' structure that is a representation of our mib.
*/
/*
* first, we have to pick the variable type. They are all defined in
* the var_struct.h file in the agent subdirectory. I'm picking the
* variable2 structure since the longest sub-component of the oid I
* want to load is .2.1 and .2.2 so I need at most 2 spaces in the
* last entry.
*/
struct variable2 diskio_variables[] = {
{DISKIO_INDEX, ASN_INTEGER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {1}},
{DISKIO_DEVICE, ASN_OCTET_STR, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {2}},
{DISKIO_NREAD, ASN_COUNTER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {3}},
{DISKIO_NWRITTEN, ASN_COUNTER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {4}},
{DISKIO_READS, ASN_COUNTER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {5}},
{DISKIO_WRITES, ASN_COUNTER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {6}},
#if defined(HAVE_GETDEVS) || defined(HAVE_DEVSTAT_GETDEVS) || defined(linux)
{DISKIO_LA1, ASN_INTEGER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {9}},
{DISKIO_LA5, ASN_INTEGER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {10}},
{DISKIO_LA15, ASN_INTEGER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {11}},
#endif
{DISKIO_NREADX, ASN_COUNTER64, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {12}},
{DISKIO_NWRITTENX, ASN_COUNTER64, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {13}},
};
/*
* Define the OID pointer to the top of the mib tree that we're
* registering underneath.
*/
oid diskio_variables_oid[] =
{ 1, 3, 6, 1, 4, 1, 2021, 13, 15, 1, 1 };
/*
* register ourselves with the agent to handle our mib tree
*
* This is a macro defined in ../../snmp_vars.h. The arguments are:
*
* descr: A short description of the mib group being loaded.
* var: The variable structure to load.
* vartype: The variable structure used to define it (variable2, variable4, ...)
* theoid: A *initialized* *exact length* oid pointer.
* (sizeof(theoid) *must* return the number of elements!)
*/
REGISTER_MIB("diskio", diskio_variables, variable2,
diskio_variables_oid);
#ifdef solaris2
kc = kstat_open();
if (kc == NULL)
snmp_log(LOG_ERR, "diskio: Couldn't open kstat\n");
#endif
#ifdef darwin
/*
* Get the I/O Kit communication handle.
*/
IOMasterPort(bootstrap_port, &masterPort);
#endif
#if defined(aix4) || defined(aix5) || defined(aix6) || defined(aix7)
/*
* initialize values to gather information on first request
*/
ps_numdisks = 0;
ps_disk = NULL;
#endif
#if defined (HAVE_GETDEVS) || defined(HAVE_DEVSTAT_GETDEVS) || defined(linux)
devla_getstats(0, NULL);
/* collect LA data regularly */
snmp_alarm_register(DISKIO_SAMPLE_INTERVAL, SA_REPEAT, devla_getstats, NULL);
#endif
#ifdef linux
char *app = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "diskio_exclude_fd",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_DISKIO_NO_FD);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "diskio_exclude_loop",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_DISKIO_NO_LOOP);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "diskio_exclude_ram",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_DISKIO_NO_RAM);
/* or possible an exclusion pattern? */
snmp_register_callback(SNMP_CALLBACK_APPLICATION,
SNMPD_CALLBACK_PRE_UPDATE_CONFIG,
diskio_free_config, NULL);
#endif
}
