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poller.c
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poller.c
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/*
ex: set tabstop=4 shiftwidth=4 autoindent:
+-------------------------------------------------------------------------+
| Copyright (C) 2004-2024 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"
void child_cleanup(void *arg) {
poller_thread_t poller_details = *(poller_thread_t*) arg;
SPINE_LOG_DEVDBG(("DEBUG: Device[%i] HT[%i] The Device Thread has cleaned up.", poller_details.host_id, poller_details.host_thread));
child_cleanup_thread(arg);
}
void child_cleanup_thread(void *arg) {
sem_post(&available_threads);
int a_threads_value;
sem_getvalue(&available_threads, &a_threads_value);
SPINE_LOG_DEVDBG(("DEBUG: Available Threads is %i (%i outstanding)", a_threads_value, set.threads - a_threads_value));
}
void child_cleanup_script(void *arg) {
sem_post(&available_scripts);
int a_scripts_value;
sem_getvalue(&available_scripts, &a_scripts_value);
SPINE_LOG_DEVDBG(("DEBUG: Available Scripts is %i (%i outstanding)", a_scripts_value, MAX_SIMULTANEOUS_SCRIPTS - a_scripts_value));
}
/*! \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) {
pthread_cleanup_push(child_cleanup, arg);
int device_counter;
int host_id;
int host_thread;
int host_threads;
int host_data_ids;
int host_errors;
double host_time_double;
char host_time[SMALL_BUFSIZE];
extern poller_thread_t** details;
host_errors = 0;
poller_thread_t poller_details = *(poller_thread_t*) arg;
device_counter = poller_details.device_counter;
host_id = poller_details.host_id;
host_thread = poller_details.host_thread;
host_threads = poller_details.host_threads;
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);
thread_mutex_unlock(LOCK_HOST_TIME);
/* Allows main thread to proceed with creation of other threads */
sem_post(poller_details.thread_init_sem);
if (is_debug_device(host_id)) {
SPINE_LOG(("DEBUG: Device[%i] HT[%i] In Poller, About to Start Polling", host_id, host_thread));
} else {
SPINE_LOG_DEBUG(("DEBUG: Device[%i] HT[%i] In Poller, About to Start Polling", host_id, host_thread));
}
poll_host(device_counter, host_id, host_thread, host_threads, host_data_ids, host_time, &host_errors, host_time_double);
pthread_cleanup_pop(1);
/* end the thread */
pthread_exit(0);
exit(0);
}
/*! \fn void poll_host(int device_counter, int host_id, int host_thread, int host_threads, int host_data_ids, char *host_time, int *host_errors, 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 device_counter, int host_id, int host_thread, int host_threads, int host_data_ids, char *host_time, int *host_errors, double host_time_double) {
char query1[BUFSIZE];
char query2[BIG_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];
int query8_len = 0;
int query11_len = 0;
int posuffix_len = 0;
char sysUptime[BUFSIZE];
char result_string[RESULTS_BUFFER+SMALL_BUFSIZE];
int result_length;
char temp_result[RESULTS_BUFFER];
int errors = 0;
int *buf_errors;
int *buf_size;
char *error_string;
int error_len = 0;
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[BIG_BUFSIZE];
char temp_poll_result[BUFSIZE];
char temp_arg1[BUFSIZE];
char limits[SMALL_BUFSIZE];
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[7];
char last_snmp_priv_passphrase[200];
char last_snmp_priv_protocol[8];
char last_snmp_context[65];
char last_snmp_engine_id[30];
double poll_time = get_time_as_double();
double thread_start = 0;
double thread_end = 0;
/* reindex shortcuts to speed polling */
int previous_assert_failure = FALSE;
int last_data_query_id = 0;
int perform_assert = TRUE;
int new_buffer = TRUE;
int ignore_sysinfo = TRUE;
int buf_length = 0;
extern poller_thread_t** details;
pool_t *local_cnn;
pool_t *remote_cnn;
reindex_t *reindex = NULL;
host_t *host = NULL;
ping_t *ping = NULL;
name_t *name = NULL;
target_t *poller_items = NULL;
snmp_oids_t *snmp_oids = NULL;
error_string = malloc(DBL_BUFSIZE);
buf_size = malloc(sizeof(int));
buf_errors = malloc(sizeof(int));
*buf_size = 0;
*buf_errors = 0;
MYSQL mysql;
MYSQL mysqlr;
MYSQL mysqlt;
MYSQL_RES *result;
MYSQL_ROW row;
//db_connect(LOCAL, &mysql);
local_cnn = db_get_connection(LOCAL);
mysql = local_cnn->mysql;
if (set.poller_id > 1 && set.mode == REMOTE_ONLINE) {
remote_cnn = db_get_connection(REMOTE);
mysqlr = remote_cnn->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!");
}
/* set zeros */
memset(host, 0, sizeof(host_t));
if (!(ping = (ping_t *) malloc(sizeof(ping_t)))) {
die("ERROR: Fatal malloc error: poller.c ping struct!");
}
/* set zeros */
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));
/* 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) {
if (set.total_snmp_ports == 1) {
snprintf(query1, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" AND deleted = '' %s", host_id, limits);
} else {
snprintf(query1, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" AND deleted = ''"
" ORDER BY snmp_port %s", host_id, limits);
}
/* host structure for uptime checks */
snprintf(query2, BIG_BUFSIZE,
"SELECT SQL_NO_CACHE id, hostname, snmp_community, snmp_version, "
"snmp_username, snmp_password, snmp_auth_protocol, "
"snmp_priv_passphrase, snmp_priv_protocol, snmp_context, snmp_engine_id, snmp_port, snmp_timeout, max_oids, "
"availability_method, ping_method, ping_port, ping_timeout, ping_retries, "
"status, status_event_count, UNIX_TIMESTAMP(status_fail_date), "
"UNIX_TIMESTAMP(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"
" AND deleted = ''", host_id);
/* data query structure for reindex detection */
snprintf(query4, BUFSIZE,
"SELECT SQL_NO_CACHE data_query_id, action, op, assert_value, arg1"
" FROM poller_reindex"
" WHERE host_id = %i", host_id);
/* multiple polling interval query for items */
if (set.active_profiles != 1) {
if (set.total_snmp_ports == 1) {
snprintf(query5, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" AND rrd_next_step <= 0"
" %s", host_id, limits);
} else {
snprintf(query5, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" AND rrd_next_step <= 0"
" ORDER BY snmp_port %s", host_id, limits);
}
} else {
if (set.total_snmp_ports == 1) {
snprintf(query5, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" %s", host_id, limits);
} else {
snprintf(query5, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" 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_step = %i, 0, IF(rrd_next_step - %i < 0, rrd_step - %i, rrd_next_step - %i))"
" WHERE host_id = %i", set.poller_interval, 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 */
if (set.dbonupdate == 0) {
snprintf(posuffix, BUFSIZE,
" ON DUPLICATE KEY UPDATE output=VALUES(output)");
} else {
snprintf(posuffix, BUFSIZE,
" AS rs ON DUPLICATE KEY UPDATE output=rs.output");
}
/* number of agent's count for single polling interval */
snprintf(query9, BUFSIZE,
"SELECT SQL_NO_CACHE 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 */
if (set.active_profiles != 1) {
snprintf(query10, BUFSIZE,
"SELECT SQL_NO_CACHE 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(query10, BUFSIZE,
"SELECT SQL_NO_CACHE snmp_port, count(snmp_port)"
" FROM poller_item"
" WHERE host_id = %i"
" GROUP BY snmp_port %s", host_id, limits);
}
} else {
if (set.total_snmp_ports == 1) {
snprintf(query1, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" AND poller_id=%i %s", host_id, set.poller_id, limits);
} else {
snprintf(query1, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" 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, BIG_BUFSIZE,
"SELECT SQL_NO_CACHE id, hostname, snmp_community, snmp_version, "
"snmp_username, snmp_password, snmp_auth_protocol, "
"snmp_priv_passphrase, snmp_priv_protocol, snmp_context, snmp_engine_id, snmp_port, snmp_timeout, max_oids, "
"availability_method, ping_method, ping_port, ping_timeout, ping_retries, "
"status, status_event_count, UNIX_TIMESTAMP(status_fail_date), "
"UNIX_TIMESTAMP(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"
" AND deleted = ''", host_id);
/* data query structure for reindex detection */
snprintf(query4, BUFSIZE,
"SELECT SQL_NO_CACHE data_query_id, action, op, assert_value, arg1"
" FROM poller_reindex"
" WHERE host_id = %i", host_id);
/* multiple polling interval query for items */
if (set.active_profiles != 1) {
if (set.total_snmp_ports == 1) {
snprintf(query5, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" AND rrd_next_step <= 0"
" AND poller_id = %i %s", host_id, set.poller_id, limits);
} else {
snprintf(query5, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" 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);
}
} else {
if (set.total_snmp_ports == 1) {
snprintf(query5, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" AND poller_id = %i %s", host_id, set.poller_id, limits);
} else {
snprintf(query5, BUFSIZE,
"SELECT SQL_NO_CACHE 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, snmp_engine_id "
" FROM poller_item"
" WHERE host_id = %i"
" 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_step = %i, 0, IF(rrd_next_step - %i < 0, rrd_step - %i, rrd_next_step - %i))"
" WHERE host_id = %i"
" AND poller_id = %i", set.poller_interval, 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 SQL_NO_CACHE 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 */
if (set.active_profiles != 1) {
snprintf(query10, BUFSIZE,
"SELECT SQL_NO_CACHE 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);
} else {
snprintf(query10, BUFSIZE,
"SELECT SQL_NO_CACHE 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);
}
}
/* 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");
query8_len = strlen(query8);
query11_len = strlen(query11);
posuffix_len = strlen(posuffix);
/* 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, LOCAL, query2)) != 0) {
num_rows = mysql_num_rows(result);
if (num_rows != 1) {
mysql_free_result(result);
if (local_cnn != NULL) {
db_release_connection(LOCAL, local_cnn->id);
} else {
SPINE_LOG(("WARNING: Device[%i] HT[%i] Trying to close uninitialized local connection.", host_id, host_thread));
}
if (set.poller_id > 1 && set.mode == REMOTE_ONLINE) {
if (remote_cnn != NULL) {
db_release_connection(REMOTE, remote_cnn->id);
} else {
SPINE_LOG(("WARNING: Device[%i] HT[%i] Trying to close uninitialized remote connection.", host_id, host_thread));
}
}
SPINE_FREE(host);
SPINE_FREE(reindex);
SPINE_FREE(ping);
SPINE_FREE(error_string);
SPINE_FREE(buf_size);
SPINE_FREE(buf_errors);
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_engine_id[0] = '\0'; // 10
host->snmp_port = 161; // 11
host->snmp_timeout = 500; // 12
host->snmp_retries = set.snmp_retries; // -
host->max_oids = 10; // 13
host->availability_method = 0; // 14
host->ping_method = 0; // 15
host->ping_port = 23; // 16
host->ping_timeout = 500; // 17
host->ping_retries = 2; // 18
host->status = HOST_UP; // 19
host->status_event_count = 0; // 20
host->status_fail_date[0] = '\0'; // 21
host->status_rec_date[0] = '\0'; // 22
host->status_last_error[0] = '\0'; // 23
host->min_time = 0; // 24
host->max_time = 0; // 25
host->cur_time = 0; // 26
host->avg_time = 0; // 27
host->total_polls = 0; // 28
host->failed_polls = 0; // 29
host->availability = 100; // 30
host->snmp_sysUpTimeInstance = 0; // 31
host->snmp_sysDescr[0] = '\0'; // 32
host->snmp_sysObjectID[0] = '\0'; // 33
host->snmp_sysContact[0] = '\0'; // 34
host->snmp_sysName[0] = '\0'; // 35
host->snmp_sysLocation[0] = '\0'; // 36
/* populate host structure */
host->ignore_host = FALSE;
if (row[0] != NULL) host->id = atoi(row[0]);
if (row[1] != NULL) {
name = get_namebyhost(row[1], NULL);
STRNCOPY(host->hostname, name->hostname);
host->ping_port = name->port;
SPINE_FREE(name);
}
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) STRNCOPY(host->snmp_engine_id, row[10]);
if (row[11] != NULL) host->snmp_port = atoi(row[11]);
if (row[12] != NULL) host->snmp_timeout = atoi(row[12]);
if (row[13] != NULL) host->max_oids = atoi(row[13]);
if (row[14] != NULL) host->availability_method = atoi(row[14]);
if (row[15] != NULL) host->ping_method = atoi(row[15]);
if (row[16] != NULL) host->ping_port = atoi(row[16]);
if (row[17] != NULL) host->ping_timeout = atoi(row[17]);
if (row[18] != NULL) host->ping_retries = atoi(row[18]);
if (row[19] != NULL) host->status = atoi(row[19]);
if (row[20] != NULL) host->status_event_count = atoi(row[20]);
if (row[21] != NULL) STRNCOPY(host->status_fail_date, row[21]);
if (row[22] != NULL) STRNCOPY(host->status_rec_date, row[22]);
if (row[23] != NULL) STRNCOPY(host->status_last_error, row[23]);
if (row[24] != NULL) host->min_time = atof(row[24]);
if (row[25] != NULL) host->max_time = atof(row[25]);
if (row[26] != NULL) host->cur_time = atof(row[26]);
if (row[27] != NULL) host->avg_time = atof(row[27]);
if (row[28] != NULL) host->total_polls = atoi(row[28]);
if (row[29] != NULL) host->failed_polls = atoi(row[29]);
if (row[30] != NULL) host->availability = atof(row[30]);
if (row[31] != NULL) host->snmp_sysUpTimeInstance=atoll(row[31]);
if (row[32] != NULL) db_escape(&mysql, host->snmp_sysDescr, sizeof(host->snmp_sysDescr), row[32]);
if (row[33] != NULL) db_escape(&mysql, host->snmp_sysObjectID, sizeof(host->snmp_sysObjectID), row[33]);
if (row[34] != NULL) db_escape(&mysql, host->snmp_sysContact, sizeof(host->snmp_sysContact), row[34]);
if (row[35] != NULL) db_escape(&mysql, host->snmp_sysName, sizeof(host->snmp_sysName), row[35]);
if (row[36] != NULL) db_escape(&mysql, host->snmp_sysLocation, sizeof(host->snmp_sysLocation), row[36]);
/* correct max_oid bounds issues */
if ((host->max_oids == 0) || (host->max_oids > 100)) {
SPINE_LOG(("Device[%i] HT[%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_engine_id,
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);
if (is_debug_device(host->id)) {
SPINE_LOG(("Device[%i] HT[%i] No host availability check possible for '%s'", host->id, host_thread, host->hostname));
} else {
SPINE_LOG_MEDIUM(("Device[%i] HT[%i] No host availability check possible for '%s'", host->id, host_thread, host->hostname));
}
} else if (host->availability_method == AVAIL_STREAM) {
update_host_status(HOST_UP, host, ping, host->availability_method);
} 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) && (host->availability_method != AVAIL_NONE)) {
if (host->snmp_session != NULL && set.mibs) {
get_system_information(host, &mysql, 1);
ignore_sysinfo = FALSE;
}
}
}
} 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) {
if (!ignore_sysinfo) {
if (host->ignore_host != TRUE) {
snprintf(update_sql, BIG_BUFSIZE, "UPDATE host "
"SET status='%i', status_event_count='%i', status_fail_date=FROM_UNIXTIME(%s),"
" status_rec_date=FROM_UNIXTIME(%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='%llu', "
" 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);
} else {
snprintf(update_sql, BIG_BUFSIZE, "UPDATE host "
"SET status='%i', status_event_count='%i', status_fail_date=FROM_UNIXTIME(%s),"
" status_rec_date=FROM_UNIXTIME(%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' "
"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->id);
}
} else {
snprintf(update_sql, BIG_BUFSIZE, "UPDATE host "
"SET status='%i', status_event_count='%i', status_fail_date=FROM_UNIXTIME(%s),"
" status_rec_date=FROM_UNIXTIME(%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' "
"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->id);
}
db_insert(&mysql, LOCAL, update_sql);
}
} else {
SPINE_LOG(("Device[%i] HT[%i] ERROR: MySQL Returned a Null Device 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;
}
if (set.ping_only) {
SPINE_FREE(host);
SPINE_FREE(reindex);
SPINE_FREE(ping);
SPINE_FREE(error_string);
SPINE_FREE(buf_size);
SPINE_FREE(buf_errors);
if (local_cnn != NULL) {
db_release_connection(LOCAL, local_cnn->id);
} else {
SPINE_LOG(("WARNING: Device[%i] HT[%i] Trying to close uninitialized local connection.", host_id, host_thread));
}
if (set.poller_id > 1 && set.mode == REMOTE_ONLINE) {
if (remote_cnn != NULL) {
db_release_connection(REMOTE, remote_cnn->id);
} else {
SPINE_LOG(("WARNING: Device[%i] HT[%i] Trying to close uninitialized remote connection.", host_id, host_thread));
}
}
mysql_thread_end();
return;
}
/* do the reindex check for this host if not script based */
if ((!host->ignore_host) && (host_id)) {
if ((result = db_query(&mysql, LOCAL, query4)) != 0) {
num_rows = mysql_num_rows(result);
if (num_rows > 0) {
if (is_debug_device(host->id)) {
SPINE_LOG(("DEBUG: Device[%i] HT[%i] RECACHE: Processing %i items in the auto reindex cache for '%s'", host->id, host_thread, num_rows, host->hostname));
} else {
SPINE_LOG_DEBUG(("DEBUG: Device[%i] HT[%i] RECACHE: Processing %i items in the auto reindex cache for '%s'", host->id, host_thread, num_rows, host->hostname));
}
// Cache uptime in case we need it again
sysUptime[0] = '\0';
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) snprintf(reindex->assert_value, sizeof(reindex->assert_value), "%s", 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;
}
poll_result = NULL;
if (perform_assert) {
switch(reindex->action) {
case POLLER_ACTION_SNMP: /* snmp */
/* if there is no snmp session, don't probe */
if (host->snmp_session == NULL) {
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") ||
strstr(reindex->arg1, ".1.3.6.1.6.3.10.2.1.3.0")) && 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);
} else if (strstr(reindex->arg1, ".1.3.6.1.2.1.1.3.0")) {
// Ensure uptime is empty to start with
snprintf(sysUptime, BUFSIZE, "");
// Check the legacy poll result first
poll_result = snmp_get(host, reindex->arg1);
if (poll_result && is_numeric(poll_result)) {
snprintf(sysUptime, BUFSIZE, "%s", poll_result);
}
if (is_debug_device(host->id)) {
SPINE_LOG(("Device[%i] HT[%i] DQ[%i] Legacy Uptime Result: %s, Is Numeric: %d", host->id, host_thread, reindex->data_query_id, poll_result, is_numeric(poll_result) ));
} else {
SPINE_LOG_MEDIUM(("Device[%i] HT[%i] DQ[%i] Legacy Uptime Result: %s, Is Numeric: %d", host->id, host_thread, reindex->data_query_id, poll_result, is_numeric(poll_result) ));
}
SPINE_FREE(poll_result);
// Check the modern uptimeInsance second
poll_result = snmp_get_base(host, ".1.3.6.1.6.3.10.2.1.3.0", false);
if (poll_result && is_numeric(poll_result)) {
snprintf(sysUptime, BUFSIZE, "%llu", atoll(poll_result) * 100);
}
// Use the primed uptime to repopulate the poll_result
// This ensures whichever response was valid gets used
snprintf(poll_result, BUFSIZE, "%s", sysUptime);
if (is_debug_device(host->id)) {
SPINE_LOG(("Device[%i] HT[%i] DQ[%i] Extended Uptime Result: %s, Is Numeric: %d", host->id, host_thread, reindex->data_query_id, poll_result, is_numeric(poll_result) ));
} else {
SPINE_LOG_MEDIUM(("Device[%i] HT[%i] DQ[%i] Extended Uptime Result: %s, Is Numeric: %d", host->id, host_thread, reindex->data_query_id, poll_result, is_numeric(poll_result) ));
}
} else {
poll_result = snmp_get(host, reindex->arg1);
}
if (is_debug_device(host->id)) {
SPINE_LOG(("Device[%i] HT[%i] DQ[%i] RECACHE OID: %s, (assert: %s %s output: %s)", host->id, host_thread, reindex->data_query_id, reindex->arg1, reindex->assert_value, reindex->op, poll_result));
} else {
SPINE_LOG_MEDIUM(("Device[%i] HT[%i] DQ[%i] RECACHE OID: %s, (assert: %s %s output: %s)", host->id, host_thread, reindex->data_query_id, reindex->arg1, reindex->assert_value, reindex->op, poll_result));
}
} else {
SPINE_LOG(("WARNING: Device[%i] HT[%i] DQ[%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, reindex->data_query_id, "DQ"));