monitoring-plugins/plugins/check_ldap.c
2002-02-28 06:42:51 +00:00

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/***************************************************************************** *
* CHECK_LDAP.C
*
* Program: Ldap plugin for Nagios
* License: GPL
* Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
*
* Last Modified: $Date$
*
* Command line: check_ldap -h <host> -b <base_dn> -p <port> -w <warn_time> -w <crit_time>
*
* Description:
*
* This plugin is for testing a ldap server.
*
* Modifications:
*
* 08-25-1999 Ethan Galstad (nagios@nagios.org)
* Modified to use common plugin include file
*
*****************************************************************************/
#define PROGNAME "check_ldap"
#define REVISION "$Revision$"
#include "config.h"
#include "common.h"
#include "netutils.h"
#include "utils.h"
#include <lber.h>
#include <ldap.h>
#define UNKNOWN -1
int process_arguments (int, char **);
int call_getopt (int, char **);
int validate_arguments (void);
static void print_help (void);
static void print_usage (void);
char ld_defattr[] = "(objectclass=*)";
char *ld_attr = ld_defattr;
char *ld_host = NULL, *ld_base = NULL, *ld_passwd = NULL, *ld_binddn = NULL;
unsigned int ld_port = 389;
int warn_time = UNKNOWN, crit_time = UNKNOWN;
int
main (int argc, char *argv[])
{
LDAP *ld;
LDAPMessage *result;
int t_diff;
time_t time0, time1;
if (process_arguments (argc, argv) == ERROR)
usage ("check_ldap: could not parse arguments\n");
/* initialize alarm signal handling */
signal (SIGALRM, socket_timeout_alarm_handler);
/* set socket timeout */
alarm (socket_timeout);
/* get the start time */
time (&time0);
/* initialize ldap */
if (!(ld = ldap_open (ld_host, ld_port))) {
/*ldap_perror(ld, "ldap_open"); */
printf ("Could not connect to the server at port %i\n", ld_port);
return STATE_CRITICAL;
}
/* bind to the ldap server */
if (ldap_bind_s (ld, ld_binddn, ld_passwd, LDAP_AUTH_SIMPLE) !=
LDAP_SUCCESS) {
/*ldap_perror(ld, "ldap_bind"); */
printf ("Could not bind to the ldap-server\n");
return STATE_CRITICAL;
}
/* do a search of all objectclasses in the base dn */
if (ldap_search_s (ld, ld_base, LDAP_SCOPE_BASE, ld_attr, NULL, 0, &result)
!= LDAP_SUCCESS) {
/*ldap_perror(ld, "ldap_search"); */
printf ("Could not search/find objectclasses in %s\n", ld_base);
return STATE_CRITICAL;
}
/* unbind from the ldap server */
ldap_unbind (ld);
/* reset the alarm handler */
alarm (0);
/* get the finish time */
time (&time1);
/* calcutate the elapsed time */
t_diff = time1 - time0;
/* check if warn_time or crit_time was exceeded */
if ((t_diff >= warn_time) && (t_diff < crit_time)) {
printf ("LDAP warning - %i seconds response time\n", t_diff);
return STATE_WARNING;
}
if (t_diff >= crit_time) {
printf ("LDAP critical - %i seconds response time\n", t_diff);
return STATE_CRITICAL;
}
/* print out the result */
printf ("LDAP ok - %i seconds response time\n", t_diff);
return STATE_OK;
}
/* process command-line arguments */
int
process_arguments (int argc, char **argv)
{
int c;
if (argc < 2)
return ERROR;
for (c = 1; c < argc; c++) {
if (strcmp ("-to", argv[c]) == 0)
strcpy (argv[c], "-t");
}
c = 0;
while (c += (call_getopt (argc - c, &argv[c]))) {
if (argc <= c)
break;
if (ld_host[0] == 0) {
strncpy (ld_host, argv[c], sizeof (ld_host) - 1);
ld_host[sizeof (ld_host) - 1] = 0;
}
}
return c;
}
int
call_getopt (int argc, char **argv)
{
int c, i = 1;
#ifdef HAVE_GETOPT_H
int option_index = 0;
/* initialize the long option struct */
static struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"timeout", required_argument, 0, 't'},
{"host", required_argument, 0, 'H'},
{"base", required_argument, 0, 'b'},
{"attr", required_argument, 0, 'a'},
{"bind", required_argument, 0, 'D'},
{"pass", required_argument, 0, 'P'},
{"port", required_argument, 0, 'p'},
{"warn", required_argument, 0, 'w'},
{"crit", required_argument, 0, 'c'},
{0, 0, 0, 0}
};
#endif
for (c = 1; c < argc; c++)
if (strcmp ("-to", argv[c]) == 0)
strcpy (argv[c], "-t");
while (1) {
#ifdef HAVE_GETOPT_H
c =
getopt_long (argc, argv, "+hVt:c:w:H:b:p:a:D:P:", long_options,
&option_index);
#else
c = getopt (argc, argv, "+?hVt:c:w:H:b:p:a:D:P:");
#endif
if (c == -1 || c == EOF)
break;
i++;
switch (c) {
case 't':
case 'c':
case 'w':
case 'H':
case 'b':
case 'p':
case 'a':
case 'D':
case 'P':
i++;
}
switch (c) {
case 'h': /* help */
print_help ();
exit (STATE_OK);
case 'V': /* version */
print_revision (PROGNAME, REVISION);
exit (STATE_OK);
case 't': /* timeout period */
if (!is_intnonneg (optarg))
usage2 ("timeout interval must be an integer", optarg);
socket_timeout = atoi (optarg);
break;
case 'H':
ld_host = optarg;
break;
case 'b':
ld_base = optarg;
break;
case 'p':
ld_port = atoi (optarg);
break;
case 'a':
ld_attr = optarg;
break;
case 'D':
ld_binddn = optarg;
break;
case 'P':
ld_passwd = optarg;
break;
case 'w':
warn_time = atoi (optarg);
break;
case 'c':
crit_time = atoi (optarg);
break;
default:
usage ("check_ldap: could not parse arguments\n");
break;
}
}
return i;
}
int
validate_arguments ()
{
if (ld_host[0] == 0 ||
ld_base[0] == 0 ||
ld_port == UNKNOWN || warn_time == UNKNOWN || crit_time == UNKNOWN) {
return ERROR;
}
else {
return OK;
}
}
/* function print_help */
static void
print_help ()
{
print_revision (PROGNAME, REVISION);
printf
("Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)\n"
"License: GPL\n" "\n");
print_usage ();
printf
("\n"
"Options:\n"
"\t-H [--host] ... host\n"
"\t-a [--attr] ... ldap attribute to search (default: \"(objectclass=*)\"\n"
"\t-b [--base] ... ldap base (eg. ou=my unit, o=my org, c=at)\n"
"\t-D [--bind] ... ldap bind DN (if required)\n"
"\t-P [--pass] ... ldap password (if required)\n"
"\t-p [--port] ... ldap port (normaly 389)\n"
"\t-w [--warn] ... time in secs. - if the exceeds <warn> the STATE_WARNING will be returned\n"
"\t-c [--crit] ... time in secs. - if the exceeds <crit> the STATE_CRITICAL will be returned\n"
"\n");
}
static void
print_usage ()
{
printf
("Usage: %s -H <host> -b <base_dn> -p <port> [-a <attr>] [-D <binddn>]\n"
" [-P <password>] [-w <warn_time>] [-c <crit_time>] [-t timeout]\n"
"(Note: all times are in seconds.)\n", PROGNAME);
}