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poller.c
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/*
ex: set tabstop=4 shiftwidth=4 autoindent:
+-------------------------------------------------------------------------+
| Copyright (C) 2002-2015 The Cacti Group |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| 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 Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301, USA |
| |
+-------------------------------------------------------------------------+
| spine: a backend data gatherer for cacti |
+-------------------------------------------------------------------------+
| This poller would not have been possible without: |
| - Larry Adams (current development and enhancements) |
| - Rivo Nurges (rrd support, mysql poller cache, misc functions) |
| - RTG (core poller code, pthreads, snmp, autoconf examples) |
| - Brady Alleman/Doug Warner (threading ideas, implimentation details) |
+-------------------------------------------------------------------------+
| - Cacti - http://www.cacti.net/ |
+-------------------------------------------------------------------------+
*/
#include "common.h"
#include "spine.h"
/*! \fn void *child(void *arg)
* \brief function is called via the fork command and initiates a poll of a host
* \param arg a pointer to an integer point to the host_id to be polled
*
* This function will call the primary Spine polling function to poll a host
* and then reduce the number of active threads by one so that the next host
* can be polled.
*
*/
void *child(void *arg) {
int host_id;
int host_thread;
int last_host_thread;
int host_data_ids;
double host_time_double;
char host_time[SMALL_BUFSIZE];
poller_thread_t poller_details = *(poller_thread_t*) arg;
host_id = poller_details.host_id;
host_thread = poller_details.host_thread;
last_host_thread = poller_details.last_host_thread;
host_data_ids = poller_details.host_data_ids;
host_time_double = poller_details.host_time_double;
snprintf(host_time, SMALL_BUFSIZE, "%s", poller_details.host_time);
free(arg);
thread_ready = TRUE;
SPINE_LOG_DEBUG(("DEBUG: In Poller, About to Start Polling of Host"));
poll_host(host_id, host_thread, last_host_thread, host_data_ids, host_time, host_time_double);
while (TRUE) {
if (thread_mutex_trylock(LOCK_THREAD) == 0) {
active_threads--;
thread_mutex_unlock(LOCK_THREAD);
break;
}
usleep(100);
}
SPINE_LOG_DEBUG(("DEBUG: The Value of Active Threads is %i" ,active_threads));
/* end the thread */
pthread_exit(0);
exit(0);
}
/*! \fn void poll_host(int host_id, int host_thread, int last_host_thread, int host_data_ids, char *host_time, double *host_time_double)
* \brief core Spine function that polls a host
* \param host_id integer value for the host_id from the hosts table in Cacti
*
* This function is core to Spine. It will take a host_id and then poll it.
*
* Prior to the poll, the system will ping the host to verifiy that it is up.
* In addition, the system will check to see if any reindexing of data query's
* is required.
*
* If reindexing is required, the Cacti poller.php function will spawn that
* reindexing process.
*
* In the case of hosts that require reindexing because of a sysUptime
* rollback, Spine will store an unknown (NaN) value for all objects to prevent
* spikes in the graphs.
*
* With regard to snmp calls, if the host has multiple snmp agents running
* Spine will re-initialize the snmp session and poll under those new ports
* as the host poller_items table dictates.
*
*/
void poll_host(int host_id, int host_thread, int last_host_thread, int host_data_ids, char *host_time, double host_time_double) {
char query1[BUFSIZE];
char query2[BUFSIZE];
char *query3 = NULL;
char query4[BUFSIZE];
char query5[BUFSIZE];
char query6[BUFSIZE];
char query8[BUFSIZE];
char query9[BUFSIZE];
char query10[BUFSIZE];
char query11[BUFSIZE];
char *query12 = NULL;
char posuffix[BUFSIZE];
char sysUptime[BUFSIZE];
char result_string[RESULTS_BUFFER+SMALL_BUFSIZE];
int result_length;
char temp_result[RESULTS_BUFFER];
int num_rows;
int assert_fail = FALSE;
int reindex_err = FALSE;
int spike_kill = FALSE;
int rows_processed = 0;
int i = 0;
int j = 0;
int k = 0;
int num_oids = 0;
int snmp_poller_items = 0;
size_t out_buffer;
int php_process;
char *poll_result = NULL;
char update_sql[BUFSIZE];
char limits[SMALL_BUFSIZE];
int num_snmp_agents = 0;
int last_snmp_version = 0;
int last_snmp_port = 0;
char last_snmp_community[50];
char last_snmp_username[50];
char last_snmp_password[50];
char last_snmp_auth_protocol[5];
char last_snmp_priv_passphrase[200];
char last_snmp_priv_protocol[7];
char last_snmp_context[65];
double poll_time = get_time_as_double();
/* reindex shortcuts to speed polling */
int previous_assert_failure = FALSE;
int last_data_query_id = 0;
int perform_assert = TRUE;
int new_buffer = TRUE;
reindex_t *reindex;
host_t *host;
ping_t *ping;
target_t *poller_items;
snmp_oids_t *snmp_oids;
MYSQL mysql;
MYSQL_RES *result;
MYSQL_ROW row;
db_connect(set.dbdb, &mysql);
/* allocate host and ping structures with appropriate values */
if (!(host = (host_t *) malloc(sizeof(host_t)))) {
die("ERROR: Fatal malloc error: poller.c host struct!");
}
memset(host, 0, sizeof(host_t));
if (!(ping = (ping_t *) malloc(sizeof(ping_t)))) {
die("ERROR: Fatal malloc error: poller.c ping struct!");
}
memset(ping, 0, sizeof(ping_t));
if (!(reindex = (reindex_t *) malloc(sizeof(reindex_t)))) {
die("ERROR: Fatal malloc error: poller.c reindex poll!");
}
memset(reindex, 0, sizeof(reindex_t));
sysUptime[0] = '\0';
/* determine the SQL limits using the poller instructions */
if (host_data_ids > 0) {
snprintf(limits, SMALL_BUFSIZE, "LIMIT %i, %i", host_data_ids * (host_thread - 1), host_data_ids);
}else{
limits[0] = '\0';
}
/* single polling interval query for items */
if (set.poller_id == 0) {
snprintf(query1, BUFSIZE,
"SELECT action, hostname, snmp_community, "
"snmp_version, snmp_username, snmp_password, "
"rrd_name, rrd_path, arg1, arg2, arg3, local_data_id, "
"rrd_num, snmp_port, snmp_timeout, "
"snmp_auth_protocol, snmp_priv_passphrase, snmp_priv_protocol, snmp_context "
" FROM poller_item"
" WHERE host_id=%i"
" ORDER BY snmp_port %s", host_id, limits);
/* host structure for uptime checks */
snprintf(query2, BUFSIZE,
"SELECT id, hostname, snmp_community, snmp_version, "
"snmp_username, snmp_password, snmp_auth_protocol, "
"snmp_priv_passphrase, snmp_priv_protocol, snmp_context, snmp_port, snmp_timeout, max_oids, "
"availability_method, ping_method, ping_port, ping_timeout, ping_retries, "
"status, status_event_count, status_fail_date, "
"status_rec_date, status_last_error, "
"min_time, max_time, cur_time, avg_time, "
"total_polls, failed_polls, availability, snmp_sysUptimeInstance, snmp_sysDescr, snmp_sysObjectID, "
"snmp_sysContact, snmp_sysName, snmp_sysLocation"
" FROM host"
" WHERE id=%i", host_id);
/* data query structure for reindex detection */
snprintf(query4, BUFSIZE,
"SELECT data_query_id, action, op, assert_value, arg1"
" FROM poller_reindex"
" WHERE host_id=%i", host_id);
/* multiple polling interval query for items */
snprintf(query5, BUFSIZE,
"SELECT action, hostname, snmp_community, "
"snmp_version, snmp_username, snmp_password, "
"rrd_name, rrd_path, arg1, arg2, arg3, local_data_id, "
"rrd_num, snmp_port, snmp_timeout, "
"snmp_auth_protocol, snmp_priv_passphrase, snmp_priv_protocol, snmp_context "
" FROM poller_item"
" WHERE host_id=%i and rrd_next_step <=0"
" ORDER by snmp_port %s", host_id, limits);
/* query to setup the next polling interval in cacti */
snprintf(query6, BUFSIZE,
"UPDATE poller_item"
" SET rrd_next_step=IF((rrd_next_step-%i)>=0, (rrd_next_step-%i), (rrd_step-%i))"
" WHERE host_id=%i", set.poller_interval, set.poller_interval, set.poller_interval, host_id);
/* query to add output records to the poller output table */
snprintf(query8, BUFSIZE,
"INSERT INTO poller_output"
" (local_data_id, rrd_name, time, output) VALUES");
/* query suffix to add rows to the poller output table */
snprintf(posuffix, BUFSIZE,
" ON DUPLICATE KEY UPDATE output=VALUES(output)");
/* number of agent's count for single polling interval */
snprintf(query9, BUFSIZE,
"SELECT snmp_port, count(snmp_port)"
" FROM poller_item"
" WHERE host_id=%i"
" GROUP BY snmp_port %s", host_id, limits);
/* number of agent's count for multiple polling intervals */
snprintf(query10, BUFSIZE,
"SELECT snmp_port, count(snmp_port)"
" FROM poller_item"
" WHERE host_id=%i"
" AND rrd_next_step < 0"
" GROUP BY snmp_port %s", host_id, limits);
}else{
snprintf(query1, BUFSIZE,
"SELECT action, hostname, snmp_community, "
"snmp_version, snmp_username, snmp_password, "
"rrd_name, rrd_path, arg1, arg2, arg3, local_data_id, "
"rrd_num, snmp_port, snmp_timeout, "
"snmp_auth_protocol, snmp_priv_passphrase, snmp_priv_protocol, snmp_context "
" FROM poller_item"
" WHERE host_id=%i AND poller_id=%i"
" ORDER BY snmp_port %s", host_id, set.poller_id, limits);
/* host structure for uptime checks */
snprintf(query2, BUFSIZE,
"SELECT id, hostname, snmp_community, snmp_version, "
"snmp_username, snmp_password, snmp_auth_protocol, "
"snmp_priv_passphrase, snmp_priv_protocol, snmp_context, snmp_port, snmp_timeout, max_oids, "
"availability_method, ping_method, ping_port, ping_timeout, ping_retries, "
"status, status_event_count, status_fail_date, "
"status_rec_date, status_last_error, "
"min_time, max_time, cur_time, avg_time, "
"total_polls, failed_polls, availability, snmp_sysUptimeInstance, snmp_sysDescr, snmp_sysObjectID, "
"snmp_sysContact, snmp_sysName, snmp_sysLocation"
" FROM host"
" WHERE id=%i", host_id);
/* data query structure for reindex detection */
snprintf(query4, BUFSIZE,
"SELECT data_query_id, action, op, assert_value, arg1"
" FROM poller_reindex"
" WHERE host_id=%i", host_id);
/* multiple polling interval query for items */
snprintf(query5, BUFSIZE,
"SELECT action, hostname, snmp_community, "
"snmp_version, snmp_username, snmp_password, "
"rrd_name, rrd_path, arg1, arg2, arg3, local_data_id, "
"rrd_num, snmp_port, snmp_timeout, "
"snmp_auth_protocol, snmp_priv_passphrase, snmp_priv_protocol, snmp_context "
" FROM poller_item"
" WHERE host_id=%i AND rrd_next_step <=0 AND poller_id=%i"
" ORDER by snmp_port %s", host_id, set.poller_id, limits);
/* query to setup the next polling interval in cacti */
snprintf(query6, BUFSIZE,
"UPDATE poller_item"
" SET rrd_next_step=IF((rrd_next_step-%i)>=0, (rrd_next_step-%i), (rrd_step-%i))"
" WHERE host_id=%i AND poller_id=%i", set.poller_interval, set.poller_interval, set.poller_interval, host_id, set.poller_id);
/* query to add output records to the poller output table */
snprintf(query8, BUFSIZE,
"INSERT INTO poller_output"
" (local_data_id, rrd_name, time, output) VALUES");
/* query suffix to add rows to the poller output table */
snprintf(posuffix, BUFSIZE,
" ON DUPLICATE KEY UPDATE output=VALUES(output)");
/* number of agent's count for single polling interval */
snprintf(query9, BUFSIZE,
"SELECT snmp_port, count(snmp_port)"
" FROM poller_item"
" WHERE host_id=%i"
" AND poller_id=%i"
" GROUP BY snmp_port %s", host_id, set.poller_id, limits);
/* number of agent's count for multiple polling intervals */
snprintf(query10, BUFSIZE,
"SELECT snmp_port, count(snmp_port)"
" FROM poller_item"
" WHERE host_id=%i"
" AND rrd_next_step < 0"
" AND poller_id=%i"
" GROUP BY snmp_port %s", host_id, set.poller_id, limits);
}
/* query to add output records to the poller output table */
snprintf(query11, BUFSIZE,
"INSERT INTO poller_output_boost"
" (local_data_id, rrd_name, time, output) VALUES");
/* initialize the ping structure variables */
snprintf(ping->ping_status, 50, "down");
snprintf(ping->ping_response, SMALL_BUFSIZE, "Ping not performed due to setting.");
snprintf(ping->snmp_status, 50, "down");
snprintf(ping->snmp_response, SMALL_BUFSIZE, "SNMP not performed due to setting or ping result");
/* if the host is a real host. Note host_id=0 is not host based data source */
if (host_id) {
/* get data about this host */
if ((result = db_query(&mysql, query2)) != 0) {
num_rows = mysql_num_rows(result);
if (num_rows != 1) {
SPINE_LOG(("Host[%i] TH[%i] ERROR: Multiple Hosts with Host ID", host_id, host_thread));
mysql_free_result(result);
mysql_close(&mysql);
#ifndef OLD_MYSQL
mysql_thread_end();
#endif
return;
}
/* fetch the result */
row = mysql_fetch_row(result);
if (row) {
/* initialize variables first */
host->id = 0; // 0
host->hostname[0] = '\0'; // 1
host->snmp_session = NULL; // -
host->snmp_community[0] = '\0'; // 2
host->snmp_version = 1; // 3
host->snmp_username[0] = '\0'; // 4
host->snmp_password[0] = '\0'; // 5
host->snmp_auth_protocol[0] = '\0'; // 6
host->snmp_priv_passphrase[0] = '\0'; // 7
host->snmp_priv_protocol[0] = '\0'; // 8
host->snmp_context[0] = '\0'; // 9
host->snmp_port = 161; // 10
host->snmp_timeout = 500; // 11
host->snmp_retries = set.snmp_retries; // -
host->max_oids = 10; // 12
host->availability_method = 0; // 13
host->ping_method = 0; // 14
host->ping_port = 23; // 15
host->ping_timeout = 500; // 16
host->ping_retries = 2; // 17
host->status = HOST_UP; // 18
host->status_event_count = 0; // 19
host->status_fail_date[0] = '\0'; // 20
host->status_rec_date[0] = '\0'; // 21
host->status_last_error[0] = '\0'; // 22
host->min_time = 0; // 23
host->max_time = 0; // 24
host->cur_time = 0; // 25
host->avg_time = 0; // 26
host->total_polls = 0; // 27
host->failed_polls = 0; // 28
host->availability = 100; // 29
host->snmp_sysUpTimeInstance = 0; // 30
host->snmp_sysDescr[0] = '\0'; // 31
host->snmp_sysObjectID[0] = '\0'; // 32
host->snmp_sysContact[0] = '\0'; // 33
host->snmp_sysName[0] = '\0'; // 34
host->snmp_sysLocation[0] = '\0'; // 35
/* populate host structure */
host->ignore_host = FALSE;
if (row[0] != NULL) host->id = atoi(row[0]);
if (row[1] != NULL) STRNCOPY(host->hostname, row[1]);
if (row[2] != NULL) STRNCOPY(host->snmp_community, row[2]);
if (row[3] != NULL) host->snmp_version = atoi(row[3]);
if (row[4] != NULL) STRNCOPY(host->snmp_username, row[4]);
if (row[5] != NULL) STRNCOPY(host->snmp_password, row[5]);
if (row[6] != NULL) STRNCOPY(host->snmp_auth_protocol, row[6]);
if (row[7] != NULL) STRNCOPY(host->snmp_priv_passphrase, row[7]);
if (row[8] != NULL) STRNCOPY(host->snmp_priv_protocol, row[8]);
if (row[9] != NULL) STRNCOPY(host->snmp_context, row[9]);
if (row[10] != NULL) host->snmp_port = atoi(row[10]);
if (row[11] != NULL) host->snmp_timeout = atoi(row[11]);
if (row[12] != NULL) host->max_oids = atoi(row[12]);
if (row[13] != NULL) host->availability_method = atoi(row[13]);
if (row[14] != NULL) host->ping_method = atoi(row[14]);
if (row[15] != NULL) host->ping_port = atoi(row[15]);
if (row[16] != NULL) host->ping_timeout = atoi(row[16]);
if (row[17] != NULL) host->ping_retries = atoi(row[17]);
if (row[18] != NULL) host->status = atoi(row[18]);
if (row[19] != NULL) host->status_event_count = atoi(row[19]);
if (row[20] != NULL) STRNCOPY(host->status_fail_date, row[20]);
if (row[21] != NULL) STRNCOPY(host->status_rec_date, row[21]);
if (row[22] != NULL) STRNCOPY(host->status_last_error, row[22]);
if (row[23] != NULL) host->min_time = atof(row[23]);
if (row[24] != NULL) host->max_time = atof(row[24]);
if (row[25] != NULL) host->cur_time = atof(row[25]);
if (row[26] != NULL) host->avg_time = atof(row[26]);
if (row[27] != NULL) host->total_polls = atoi(row[27]);
if (row[28] != NULL) host->failed_polls = atoi(row[28]);
if (row[29] != NULL) host->availability = atof(row[29]);
if (row[30] != NULL) host->snmp_sysUpTimeInstance=atoi(row[30]);
if (row[31] != NULL) STRNCOPY(host->snmp_sysDescr, row[31]);
if (row[32] != NULL) STRNCOPY(host->snmp_sysObjectID, row[32]);
if (row[33] != NULL) STRNCOPY(host->snmp_sysContact, row[33]);
if (row[34] != NULL) STRNCOPY(host->snmp_sysName, row[34]);
if (row[35] != NULL) STRNCOPY(host->snmp_sysLocation, row[35]);
/* correct max_oid bounds issues */
if ((host->max_oids == 0) || (host->max_oids > 100)) {
SPINE_LOG(("Host[%i] TH[%i] WARNING: Max OIDS is out of range with value of '%i'. Resetting to default of 5", host_id, host_thread, host->max_oids));
host->max_oids = 5;
}
/* free the host result */
mysql_free_result(result);
if (((host->snmp_version >= 1) && (host->snmp_version <= 2) &&
(strlen(host->snmp_community) > 0)) ||
(host->snmp_version == 3)) {
host->snmp_session = snmp_host_init(host->id,
host->hostname,
host->snmp_version,
host->snmp_community,
host->snmp_username,
host->snmp_password,
host->snmp_auth_protocol,
host->snmp_priv_passphrase,
host->snmp_priv_protocol,
host->snmp_context,
host->snmp_port,
host->snmp_timeout);
}else{
host->snmp_session = NULL;
}
/* perform a check to see if the host is alive by polling it's SysDesc
* if the host down from an snmp perspective, don't poll it.
* function sets the ignore_host bit */
if ((host->availability_method == AVAIL_SNMP) &&
(strlen(host->snmp_community) == 0) &&
(host->snmp_version < 3)) {
host->ignore_host = FALSE;
update_host_status(HOST_UP, host, ping, host->availability_method);
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] No host availability check possible for '%s'", host->id, host_thread, host->hostname));
}else{
if (ping_host(host, ping) == HOST_UP) {
host->ignore_host = FALSE;
if (host_thread == 1) {
update_host_status(HOST_UP, host, ping, host->availability_method);
if (host->availability_method != AVAIL_PING) {
if (host->snmp_session != NULL) {
get_system_information(host, &mysql, 1);
}
}
}
}else{
host->ignore_host = TRUE;
if (host_thread == 1) {
update_host_status(HOST_DOWN, host, ping, host->availability_method);
}
}
}
/* update host table */
if (host_thread == 1) {
snprintf(update_sql, BUFSIZE, "UPDATE host "
"SET status='%i', status_event_count='%i', status_fail_date='%s',"
" status_rec_date='%s', status_last_error='%s', min_time='%f',"
" max_time='%f', cur_time='%f', avg_time='%f', total_polls='%i',"
" failed_polls='%i', availability='%.4f', snmp_sysDescr='%s', "
" snmp_sysObjectID='%s', snmp_sysUpTimeInstance='%i', "
" snmp_sysContact='%s', snmp_sysName='%s', snmp_sysLocation='%s' "
"WHERE id='%i'",
host->status,
host->status_event_count,
host->status_fail_date,
host->status_rec_date,
host->status_last_error,
host->min_time,
host->max_time,
host->cur_time,
host->avg_time,
host->total_polls,
host->failed_polls,
host->availability,
host->snmp_sysDescr,
host->snmp_sysObjectID,
host->snmp_sysUpTimeInstance,
host->snmp_sysContact,
host->snmp_sysName,
host->snmp_sysLocation,
host->id);
db_insert(&mysql, update_sql);
}
}else{
SPINE_LOG(("Host[%i] TH[%i] ERROR: MySQL Returned a Null Host Result", host->id, host_thread));
num_rows = 0;
host->ignore_host = TRUE;
}
}else{
num_rows = 0;
host->ignore_host = TRUE;
}
}else{
host->id = 0;
host->max_oids = 1;
host->snmp_session = NULL;
host->ignore_host = FALSE;
}
/* do the reindex check for this host if not script based */
if ((!host->ignore_host) && (host_id)) {
if ((result = db_query(&mysql, query4)) != 0) {
num_rows = mysql_num_rows(result);
if (num_rows > 0) {
SPINE_LOG_DEBUG(("Host[%i] TH[%i] RECACHE: Processing %i items in the auto reindex cache for '%s'", host->id, host_thread, num_rows, host->hostname));
while ((row = mysql_fetch_row(result))) {
assert_fail = FALSE;
reindex_err = FALSE;
/* initialize the reindex struction */
reindex->data_query_id = 0;
reindex->action = -1;
reindex->op[0] = '\0';
reindex->assert_value[0] = '\0';
reindex->arg1[0] = '\0';
if (row[0] != NULL) reindex->data_query_id = atoi(row[0]);
if (row[1] != NULL) reindex->action = atoi(row[1]);
if (row[2] != NULL) snprintf(reindex->op, sizeof(reindex->op), "%s", row[2]);
if (row[3] != NULL) {
db_escape(&mysql, reindex->assert_value, row[3]);
}
if (row[4] != NULL) snprintf(reindex->arg1, sizeof(reindex->arg1), "%s", row[4]);
/* shortcut assertion checks if a data query reindex has already been queued */
if ((last_data_query_id == reindex->data_query_id) &&
(!previous_assert_failure)) {
perform_assert = TRUE;
}else if (last_data_query_id != reindex->data_query_id) {
last_data_query_id = reindex->data_query_id;
perform_assert = TRUE;
previous_assert_failure = FALSE;
}else{
perform_assert = FALSE;
}
if (perform_assert) {
switch(reindex->action) {
case POLLER_ACTION_SNMP: /* snmp */
/* if there is no snmp session, don't probe */
if (!host->snmp_session) {
reindex_err = TRUE;
}
/* check to see if you are checking uptime */
if (!reindex_err) {
if (strstr(reindex->arg1, ".1.3.6.1.2.1.1.3.0")) {
if (strlen(sysUptime) > 0) {
if (!(poll_result = (char *) malloc(BUFSIZE))) {
die("ERROR: Fatal malloc error: poller.c poll_result");
}
poll_result[0] = '\0';
snprintf(poll_result, BUFSIZE, "%s", sysUptime);
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] Recache DataQuery[%i] OID: %s, output: %s", host->id, host_thread, reindex->data_query_id, reindex->arg1, poll_result));
}else{
poll_result = snmp_get(host, reindex->arg1);
snprintf(sysUptime, BUFSIZE, "%s", poll_result);
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] Recache DataQuery[%i] OID: %s, output: %s", host->id, host_thread, reindex->data_query_id, reindex->arg1, poll_result));
}
}else{
poll_result = snmp_get(host, reindex->arg1);
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] Recache DataQuery[%i] OID: %s, output: %s", host->id, host_thread, reindex->data_query_id, reindex->arg1, poll_result));
}
}else{
SPINE_LOG(("WARNING: Host[%i] TH[%i] DataQuery[%i] Reindex Check FAILED: No SNMP Session. If not an SNMP host, don't use Uptime Goes Backwards!", host->id, host_thread, reindex->data_query_id));
}
break;
case POLLER_ACTION_SCRIPT: /* script (popen) */
poll_result = trim(exec_poll(host, reindex->arg1));
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] Recache DataQuery[%i] CMD: %s, output: %s", host->id, host_thread, reindex->data_query_id, reindex->arg1, poll_result));
break;
case POLLER_ACTION_PHP_SCRIPT_SERVER: /* script (php script server) */
php_process = php_get_process();
poll_result = trim(php_cmd(reindex->arg1, php_process));
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] Recache DataQuery[%i] SERVER: %s, output: %s", host->id, host_thread, reindex->data_query_id, reindex->arg1, poll_result));
break;
case POLLER_ACTION_SNMP_COUNT: /* snmp; count items */
if (!(poll_result = (char *) malloc(BUFSIZE))) {
die("ERROR: Fatal malloc error: poller.c poll_result");
}
poll_result[0] = '\0';
snprintf(poll_result, BUFSIZE, "%d", snmp_count(host, reindex->arg1));
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] Recache DataQuery[%i]: OID_COUNT: %s, output: %s", host->id, host_thread, reindex->data_query_id, reindex->arg1, poll_result));
break;
case POLLER_ACTION_SCRIPT_COUNT: /* script (popen); count items by counting line feeds */
if (!(poll_result = (char *) malloc(BUFSIZE))) {
die("ERROR: Fatal malloc error: poller.c poll_result");
}
poll_result[0] = '\0';
snprintf(poll_result, BUFSIZE, "%d", char_count(exec_poll(host, reindex->arg1), '\n'));
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] Recache DataQuery[%i] CMD Count: %s, output: %s", host->id, host_thread, reindex->data_query_id, reindex->arg1, poll_result));
break;
case POLLER_ACTION_PHP_SCRIPT_SERVER_COUNT: /* script (php script server); count number of lines */
//php_process = php_get_process(); // todo not yet provided by cmd.php!
//sprintf(poll_result, "%d", char_count(php_cmd(reindex->arg1, php_process), '\n'));
//SPINE_LOG_MEDIUM(("Host[%i] TH[%i] Recache DataQuery[%i] SERVER Count: %s, output: %s", host->id, host_thread, reindex->data_query_id, reindex->arg1, poll_result));
if (!(poll_result = (char *) malloc(BUFSIZE))) {
die("ERROR: Fatal malloc error: poller.c poll_result");
}
poll_result[0] = '\0';
SPINE_LOG(("Host[%i] TH[%i] Recache DataQuery[%i] *SKIPPING* Script Server Count: %s, (arg_num_indexes required)", host->id, host_thread, reindex->data_query_id, reindex->arg1));
break;
default:
SPINE_LOG(("Host[%i] TH[%i] ERROR: Unknown Assert Action!", host->id, host_thread));
}
if (!reindex_err) {
if (!(query3 = (char *)malloc(BUFSIZE))) {
die("ERROR: Fatal malloc error: poller.c reindex insert!");
}
query3[0] = '\0';
/* assume ok if host is up and result wasn't obtained */
if ((IS_UNDEFINED(poll_result)) || (STRIMATCH(poll_result, "No Such Instance"))) {
assert_fail = FALSE;
}else if ((!strcmp(reindex->op, "=")) && (strcmp(reindex->assert_value,poll_result))) {
SPINE_LOG_HIGH(("Host[%i] TH[%i] ASSERT: '%s' .eq. '%s' failed. Recaching host '%s', data query #%i", host->id, host_thread, reindex->assert_value, poll_result, host->hostname, reindex->data_query_id));
if (host_thread == 1) {
snprintf(query3, BUFSIZE, "REPLACE INTO poller_command (poller_id, time, action,command) values (0, NOW(), %i, '%i:%i')", POLLER_COMMAND_REINDEX, host->id, reindex->data_query_id);
db_insert(&mysql, query3);
}
assert_fail = TRUE;
previous_assert_failure = TRUE;
}else if ((!strcmp(reindex->op, ">")) && (strtoll(reindex->assert_value, (char **)NULL, 10) < strtoll(poll_result, (char **)NULL, 10))) {
SPINE_LOG_HIGH(("Host[%i] TH[%i] ASSERT: '%s' .gt. '%s' failed. Recaching host '%s', data query #%i", host->id, host_thread, reindex->assert_value, poll_result, host->hostname, reindex->data_query_id));
if (host_thread == 1) {
snprintf(query3, BUFSIZE, "REPLACE INTO poller_command (poller_id, time, action, command) values (0, NOW(), %i, '%i:%i')", POLLER_COMMAND_REINDEX, host->id, reindex->data_query_id);
db_insert(&mysql, query3);
}
assert_fail = TRUE;
previous_assert_failure = TRUE;
/* if uptime is set to '0' don't fail out */
}else if (strcmp(reindex->assert_value, "0")) {
if ((!strcmp(reindex->op, "<")) && (strtoll(reindex->assert_value, (char **)NULL, 10) > strtoll(poll_result, (char **)NULL, 10))) {
SPINE_LOG_HIGH(("Host[%i] TH[%i] ASSERT: '%s' .lt. '%s' failed. Recaching host '%s', data query #%i", host->id, host_thread, reindex->assert_value, poll_result, host->hostname, reindex->data_query_id));
if (host_thread == 1) {
snprintf(query3, BUFSIZE, "REPLACE INTO poller_command (poller_id, time, action, command) values (0, NOW(), %i, '%i:%i')", POLLER_COMMAND_REINDEX, host->id, reindex->data_query_id);
db_insert(&mysql, query3);
}
assert_fail = TRUE;
previous_assert_failure = TRUE;
}
}
/* update 'poller_reindex' with the correct information if:
* 1) the assert fails
* 2) the OP code is > or < meaning the current value could have changed without causing
* the assert to fail */
if ((assert_fail) || (!strcmp(reindex->op, ">")) || (!strcmp(reindex->op, "<"))) {
if (host_thread == 1) {
snprintf(query3, BUFSIZE, "UPDATE poller_reindex SET assert_value='%s' WHERE host_id='%i' AND data_query_id='%i' and arg1='%s'", poll_result, host_id, reindex->data_query_id, reindex->arg1);
db_insert(&mysql, query3);
}
if ((assert_fail) &&
((!strcmp(reindex->op, "<")) || (!strcmp(reindex->arg1,".1.3.6.1.2.1.1.3.0")))) {
spike_kill = TRUE;
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] NOTICE: Spike Kill in Effect for '%s'", host_id, host_thread, host->hostname));
}
}
free(query3);
free(poll_result);
}
}
}
}else{
SPINE_LOG_HIGH(("Host[%i] TH[%i] Host has no information for recache.", host->id, host_thread));
}
/* free the host result */
mysql_free_result(result);
}else{
SPINE_LOG(("Host[%i] TH[%i] ERROR: Recache Query Returned Null Result!", host->id, host_thread));
}
/* close the host snmp session, we will create again momentarily */
if (host->snmp_session) {
snmp_host_cleanup(host->snmp_session);
host->snmp_session = NULL;
}
}
/* calculate the number of poller items to poll this cycle */
num_rows = 0;
if (set.poller_interval == 0) {
/* get the number of agents */
if ((result = db_query(&mysql, query9)) != 0) {
num_snmp_agents = mysql_num_rows(result);
mysql_free_result(result);
/* get the poller items */
if ((result = db_query(&mysql, query1)) != 0) {
num_rows = mysql_num_rows(result);
}else{
SPINE_LOG(("Host[%i] TH[%i] ERROR: Unable to Retrieve Rows due to Null Result!", host->id, host_thread));
}
}else{
SPINE_LOG(("Host[%i] TH[%i] ERROR: Agent Count Query Returned Null Result!", host->id, host_thread));
}
}else{
/* get the number of agents */
if ((result = db_query(&mysql, query10)) != 0) {
num_snmp_agents = (int)mysql_num_rows(result);
mysql_free_result(result);
/* get the poller items */
if ((result = db_query(&mysql, query5)) != 0) {
num_rows = mysql_num_rows(result);
}else{
SPINE_LOG(("Host[%i] TH[%i] ERROR: Unable to Retrieve Rows due to Null Result!", host->id, host_thread));
}
}else{
SPINE_LOG(("Host[%i] TH[%i] ERROR: Agent Count Query Returned Null Result!", host->id, host_thread));
}
}
if (num_rows > 0) {
/* retreive each hosts polling items from poller cache and load into array */
poller_items = (target_t *) calloc(num_rows, sizeof(target_t));
i = 0;
while ((row = mysql_fetch_row(result))) {
/* initialize monitored object */
poller_items[i].target_id = 0;
poller_items[i].action = -1;
poller_items[i].hostname[0] = '\0';
poller_items[i].snmp_community[0] = '\0';
poller_items[i].snmp_version = 1;
poller_items[i].snmp_username[0] = '\0';
poller_items[i].snmp_password[0] = '\0';
poller_items[i].snmp_auth_protocol[0] = '\0';
poller_items[i].snmp_priv_passphrase[0] = '\0';
poller_items[i].snmp_priv_protocol[0] = '\0';
poller_items[i].snmp_context[0] = '\0';
poller_items[i].snmp_port = 161;
poller_items[i].snmp_timeout = 500;
poller_items[i].rrd_name[0] = '\0';
poller_items[i].rrd_path[0] = '\0';
poller_items[i].arg1[0] = '\0';
poller_items[i].arg2[0] = '\0';
poller_items[i].arg3[0] = '\0';
poller_items[i].local_data_id = 0;
poller_items[i].rrd_num = 0;
if (row[0] != NULL) poller_items[i].action = atoi(row[0]);
if (row[1] != NULL) snprintf(poller_items[i].hostname, sizeof(poller_items[i].hostname), "%s", row[1]);
if (row[2] != NULL) snprintf(poller_items[i].snmp_community, sizeof(poller_items[i].snmp_community), "%s", row[2]);
if (row[3] != NULL) poller_items[i].snmp_version = atoi(row[3]);
if (row[4] != NULL) snprintf(poller_items[i].snmp_username, sizeof(poller_items[i].snmp_username), "%s", row[4]);
if (row[5] != NULL) snprintf(poller_items[i].snmp_password, sizeof(poller_items[i].snmp_password), "%s", row[5]);
if (row[6] != NULL) snprintf(poller_items[i].rrd_name, sizeof(poller_items[i].rrd_name), "%s", row[6]);
if (row[7] != NULL) snprintf(poller_items[i].rrd_path, sizeof(poller_items[i].rrd_path), "%s", row[7]);
if (row[8] != NULL) snprintf(poller_items[i].arg1, sizeof(poller_items[i].arg1), "%s", row[8]);
if (row[9] != NULL) snprintf(poller_items[i].arg2, sizeof(poller_items[i].arg2), "%s", row[9]);
if (row[10] != NULL) snprintf(poller_items[i].arg3, sizeof(poller_items[i].arg3), "%s", row[10]);
if (row[11] != NULL) poller_items[i].local_data_id = atoi(row[11]);
if (row[12] != NULL) poller_items[i].rrd_num = atoi(row[12]);
if (row[13] != NULL) poller_items[i].snmp_port = atoi(row[13]);
if (row[14] != NULL) poller_items[i].snmp_timeout = atoi(row[14]);
if (row[15] != NULL) snprintf(poller_items[i].snmp_auth_protocol,
sizeof(poller_items[i].snmp_auth_protocol), "%s", row[15]);
if (row[16] != NULL) snprintf(poller_items[i].snmp_priv_passphrase,
sizeof(poller_items[i].snmp_priv_passphrase), "%s", row[16]);
if (row[17] != NULL) snprintf(poller_items[i].snmp_priv_protocol,
sizeof(poller_items[i].snmp_priv_protocol), "%s", row[17]);
if (row[18] != NULL) snprintf(poller_items[i].snmp_context,
sizeof(poller_items[i].snmp_context), "%s", row[18]);
SET_UNDEFINED(poller_items[i].result);
if (poller_items[i].action == POLLER_ACTION_SNMP) {
snmp_poller_items++;
}
i++;
}
/* free the mysql result */
mysql_free_result(result);
/* create an array for snmp oids */
snmp_oids = (snmp_oids_t *) calloc(host->max_oids, sizeof(snmp_oids_t));
/* initialize all the memory to insure we don't get issues */
memset(snmp_oids, 0, sizeof(snmp_oids_t)*host->max_oids);
/* log an informative message */
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] NOTE: There are '%i' Polling Items for this Host", host_id, host_thread, num_rows));
i = 0; k = 0;
while ((i < num_rows) && (!host->ignore_host)) {
switch(poller_items[i].action) {
case POLLER_ACTION_SNMP: /* raw SNMP poll */
/* initialize or reinitialize snmp as required */
if (k == 0) {
last_snmp_port = poller_items[i].snmp_port;
last_snmp_version = poller_items[i].snmp_version;
STRNCOPY(last_snmp_community, poller_items[i].snmp_community);
STRNCOPY(last_snmp_username, poller_items[i].snmp_username);
STRNCOPY(last_snmp_password, poller_items[i].snmp_password);
STRNCOPY(last_snmp_auth_protocol, poller_items[i].snmp_auth_protocol);
STRNCOPY(last_snmp_priv_passphrase, poller_items[i].snmp_priv_passphrase);
STRNCOPY(last_snmp_priv_protocol, poller_items[i].snmp_priv_protocol);
STRNCOPY(last_snmp_context, poller_items[i].snmp_context);
host->snmp_session = snmp_host_init(host->id, poller_items[i].hostname,
poller_items[i].snmp_version, poller_items[i].snmp_community,
poller_items[i].snmp_username, poller_items[i].snmp_password,
poller_items[i].snmp_auth_protocol, poller_items[i].snmp_priv_passphrase,
poller_items[i].snmp_priv_protocol, poller_items[i].snmp_context,
poller_items[i].snmp_port, poller_items[i].snmp_timeout);
k++;
}
/* catch snmp initialization issues */
if (!host->snmp_session) {
host->ignore_host = TRUE;
break;
}
/* some snmp data changed from poller item to poller item. therefore, poll host and store data */
if ((last_snmp_port != poller_items[i].snmp_port) ||
(last_snmp_version != poller_items[i].snmp_version) ||
((poller_items[i].snmp_version < 3) &&
(!STRMATCH(last_snmp_community, poller_items[i].snmp_community))) ||
((poller_items[i].snmp_version > 2) &&
(!STRMATCH(last_snmp_username, poller_items[i].snmp_username)) ||
(!STRMATCH(last_snmp_password, poller_items[i].snmp_password)) ||
(!STRMATCH(last_snmp_auth_protocol, poller_items[i].snmp_auth_protocol)) ||
(!STRMATCH(last_snmp_priv_passphrase, poller_items[i].snmp_priv_passphrase)) ||
(!STRMATCH(last_snmp_priv_protocol, poller_items[i].snmp_priv_protocol)) ||
(!STRMATCH(last_snmp_context, poller_items[i].snmp_context)))) {
if (num_oids > 0) {
snmp_get_multi(host, snmp_oids, num_oids);
for (j = 0; j < num_oids; j++) {
if (host->ignore_host) {
SPINE_LOG(("Host[%i] TH[%i] DS[%i] WARNING: SNMP timeout detected [%i ms], ignoring host '%s'", host_id, host_thread, poller_items[snmp_oids[j].array_position].local_data_id, host->snmp_timeout, host->hostname));
SET_UNDEFINED(snmp_oids[j].result);
}else if (IS_UNDEFINED(snmp_oids[j].result)) {
/* continue */
}else if ((is_numeric(snmp_oids[j].result)) || (is_multipart_output(snmp_oids[j].result))) {
/* continue */
}else if (is_hexadecimal(snmp_oids[j].result, TRUE)) {
snprintf(snmp_oids[j].result, RESULTS_BUFFER, "%lld", hex2dec(snmp_oids[j].result));
}else if ((STRIMATCH(snmp_oids[j].result, "U")) ||
(STRIMATCH(snmp_oids[j].result, "Nan"))) {
/* is valid output, continue */
}else{
/* remove double or single quotes from string */
snprintf(temp_result, RESULTS_BUFFER, "%s", strip_alpha(trim(snmp_oids[j].result)));
snprintf(snmp_oids[j].result , RESULTS_BUFFER, "%s", temp_result);
/* detect erroneous non-numeric result */
if (!validate_result(snmp_oids[j].result)) {
SET_UNDEFINED(snmp_oids[j].result);
}
}
snprintf(poller_items[snmp_oids[j].array_position].result, RESULTS_BUFFER, "%s", snmp_oids[j].result);
SPINE_LOG_MEDIUM(("Host[%i] TH[%i] DS[%i] SNMP: v%i: %s, dsname: %s, oid: %s, value: %s", host_id, host_thread, poller_items[snmp_oids[j].array_position].local_data_id, host->snmp_version, host->hostname, poller_items[snmp_oids[j].array_position].rrd_name, poller_items[snmp_oids[j].array_position].arg1, poller_items[snmp_oids[j].array_position].result));
}
/* reset num_snmps */
num_oids = 0;
/* initialize all the memory to insure we don't get issues */
memset(snmp_oids, 0, sizeof(snmp_oids_t)*host->max_oids);
}
snmp_host_cleanup(host->snmp_session);
host->snmp_session = snmp_host_init(host->id, poller_items[i].hostname,
poller_items[i].snmp_version, poller_items[i].snmp_community,
poller_items[i].snmp_username, poller_items[i].snmp_password,
poller_items[i].snmp_auth_protocol, poller_items[i].snmp_priv_passphrase,
poller_items[i].snmp_priv_protocol, poller_items[i].snmp_context,
poller_items[i].snmp_port, poller_items[i].snmp_timeout);
last_snmp_port = poller_items[i].snmp_port;
last_snmp_version = poller_items[i].snmp_version;
STRNCOPY(last_snmp_community, poller_items[i].snmp_community);
STRNCOPY(last_snmp_username, poller_items[i].snmp_username);
STRNCOPY(last_snmp_password, poller_items[i].snmp_password);
STRNCOPY(last_snmp_auth_protocol, poller_items[i].snmp_auth_protocol);
STRNCOPY(last_snmp_priv_passphrase, poller_items[i].snmp_priv_passphrase);
STRNCOPY(last_snmp_priv_protocol, poller_items[i].snmp_priv_protocol);
STRNCOPY(last_snmp_context, poller_items[i].snmp_context);
}
if (num_oids >= host->max_oids) {
snmp_get_multi(host, snmp_oids, num_oids);
for (j = 0; j < num_oids; j++) {