1 /******************************************************************************
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
16 *
17 ******************************************************************************/
19 const char *progname = "check_ldap";
20 const char *revision = "$Revision$";
21 const char *copyright = "2000-2003";
22 const char *email = "nagiosplug-devel@lists.sourceforge.net";
24 #include "config.h"
25 #include "common.h"
26 #include "netutils.h"
27 #include "utils.h"
29 #include <lber.h>
30 #include <ldap.h>
32 enum {
33 UNDEFINED = -1,
34 #ifdef HAVE_LDAP_SET_OPTION
35 DEFAULT_PROTOCOL = 2,
36 #endif
37 DEFAULT_PORT = 389
38 };
40 void
41 print_usage ()
42 {
43 printf (_("\
44 Usage: %s -H <host> -b <base_dn> [-p <port>] [-a <attr>] [-D <binddn>]\n\
45 [-P <password>] [-w <warn_time>] [-c <crit_time>] [-t timeout]%s\n\
46 (Note: all times are in seconds.)\n"),
47 progname, (HAVE_LDAP_SET_OPTION ? "[-2|-3] [-4|-6]" : ""));
48 printf (_(UT_HLP_VRS), progname, progname);
49 }
51 void
52 print_help ()
53 {
54 char *myport;
55 asprintf (&myport, "%d", DEFAULT_PORT);
57 print_revision (progname, revision);
59 printf (_("Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)\n"));
60 printf (_(COPYRIGHT), copyright, email);
62 print_usage ();
64 printf (_(UT_HELP_VRSN));
66 printf (_(UT_HOST_PORT), 'p', myport);
68 printf (_(UT_IPv46));
70 printf (_("\
71 -a [--attr]\n\
72 ldap attribute to search (default: \"(objectclass=*)\"\n\
73 -b [--base]\n\
74 ldap base (eg. ou=my unit, o=my org, c=at)\n\
75 -D [--bind]\n\
76 ldap bind DN (if required)\n\
77 -P [--pass]\n\
78 ldap password (if required)\n"));
80 #ifdef HAVE_LDAP_SET_OPTION
81 printf (_("\
82 -2 [--ver2]\n\
83 use ldap protocol version 2\n\
84 -3 [--ver3]\n\
85 use ldap protocol version 3\n\
86 (default protocol version: %d)\n"),
87 DEFAULT_PROTOCOL);
88 #endif
90 printf (_(UT_WARN_CRIT));
92 printf (_(UT_SUPPORT));
93 }
94 \f
95 int process_arguments (int, char **);
96 int validate_arguments (void);
98 char ld_defattr[] = "(objectclass=*)";
99 char *ld_attr = ld_defattr;
100 char *ld_host = "";
101 char *ld_base = "";
102 char *ld_passwd = NULL;
103 char *ld_binddn = NULL;
104 unsigned int ld_port = DEFAULT_PORT;
105 #ifdef HAVE_LDAP_SET_OPTION
106 int ld_protocol = DEFAULT_PROTOCOL;
107 #endif
108 int warn_time = UNDEFINED;
109 int crit_time = UNDEFINED;
111 int
112 main (int argc, char *argv[])
113 {
115 LDAP *ld;
116 LDAPMessage *result;
118 int t_diff;
119 time_t time0, time1;
121 if (process_arguments (argc, argv) == ERROR)
122 usage (_("check_ldap: could not parse arguments\n"));
124 /* initialize alarm signal handling */
125 signal (SIGALRM, socket_timeout_alarm_handler);
127 /* set socket timeout */
128 alarm (socket_timeout);
130 /* get the start time */
131 time (&time0);
133 /* initialize ldap */
134 if (!(ld = ldap_open (ld_host, ld_port))) {
135 /*ldap_perror(ld, "ldap_open"); */
136 printf (_("Could not connect to the server at port %i\n"), ld_port);
137 return STATE_CRITICAL;
138 }
140 #ifdef HAVE_LDAP_SET_OPTION
141 /* set ldap options */
142 if (ldap_set_option (ld, LDAP_OPT_PROTOCOL_VERSION, &ld_protocol) !=
143 LDAP_OPT_SUCCESS ) {
144 printf(_("Could not set protocol version %d\n"), ld_protocol);
145 return STATE_CRITICAL;
146 }
147 #endif
148 /* bind to the ldap server */
149 if (ldap_bind_s (ld, ld_binddn, ld_passwd, LDAP_AUTH_SIMPLE) !=
150 LDAP_SUCCESS) {
151 /*ldap_perror(ld, "ldap_bind"); */
152 printf (_("Could not bind to the ldap-server\n"));
153 return STATE_CRITICAL;
154 }
156 /* do a search of all objectclasses in the base dn */
157 if (ldap_search_s (ld, ld_base, LDAP_SCOPE_BASE, ld_attr, NULL, 0, &result)
158 != LDAP_SUCCESS) {
159 /*ldap_perror(ld, "ldap_search"); */
160 printf (_("Could not search/find objectclasses in %s\n"), ld_base);
161 return STATE_CRITICAL;
162 }
164 /* unbind from the ldap server */
165 ldap_unbind (ld);
167 /* reset the alarm handler */
168 alarm (0);
170 /* get the finish time */
171 time (&time1);
173 /* calcutate the elapsed time and compare to thresholds */
174 t_diff = time1 - time0;
176 if (crit_time!=UNDEFINED && t_diff>=crit_time) {
177 printf (_("LDAP CRITICAL - %i seconds response time\n"), t_diff);
178 return STATE_CRITICAL;
179 }
181 if (warn_time!=UNDEFINED && t_diff>=warn_time) {
182 printf (_("LDAP WARNING - %i seconds response time\n"), t_diff);
183 return STATE_WARNING;
184 }
186 /* print out the result */
187 printf (_("LDAP OK - %i seconds response time\n"), t_diff);
189 return STATE_OK;
190 }
192 /* process command-line arguments */
193 int
194 process_arguments (int argc, char **argv)
195 {
196 int c;
198 int option_index = 0;
199 /* initialize the long option struct */
200 static struct option longopts[] = {
201 {"help", no_argument, 0, 'h'},
202 {"version", no_argument, 0, 'V'},
203 {"timeout", required_argument, 0, 't'},
204 {"host", required_argument, 0, 'H'},
205 {"base", required_argument, 0, 'b'},
206 {"attr", required_argument, 0, 'a'},
207 {"bind", required_argument, 0, 'D'},
208 {"pass", required_argument, 0, 'P'},
209 #ifdef HAVE_LDAP_SET_OPTION
210 {"ver2", no_argument, 0, '2'},
211 {"ver3", no_argument, 0, '3'},
212 #endif
213 {"use-ipv4", no_argument, 0, '4'},
214 {"use-ipv6", no_argument, 0, '6'},
215 {"port", required_argument, 0, 'p'},
216 {"warn", required_argument, 0, 'w'},
217 {"crit", required_argument, 0, 'c'},
218 {0, 0, 0, 0}
219 };
221 if (argc < 2)
222 return ERROR;
224 for (c = 1; c < argc; c++) {
225 if (strcmp ("-to", argv[c]) == 0)
226 strcpy (argv[c], "-t");
227 }
229 while (1) {
230 c = getopt_long (argc, argv, "hV2346t:c:w:H:b:p:a:D:P:", longopts, &option_index);
232 if (c == -1 || c == EOF)
233 break;
235 switch (c) {
236 case 'h': /* help */
237 print_help ();
238 exit (STATE_OK);
239 case 'V': /* version */
240 print_revision (progname, revision);
241 exit (STATE_OK);
242 case 't': /* timeout period */
243 if (!is_intnonneg (optarg))
244 usage2 (_("timeout interval must be a positive integer"), optarg);
245 socket_timeout = atoi (optarg);
246 break;
247 case 'H':
248 ld_host = optarg;
249 break;
250 case 'b':
251 ld_base = optarg;
252 break;
253 case 'p':
254 ld_port = atoi (optarg);
255 break;
256 case 'a':
257 ld_attr = optarg;
258 break;
259 case 'D':
260 ld_binddn = optarg;
261 break;
262 case 'P':
263 ld_passwd = optarg;
264 break;
265 case 'w':
266 warn_time = atoi (optarg);
267 break;
268 case 'c':
269 crit_time = atoi (optarg);
270 break;
271 #ifdef HAVE_LDAP_SET_OPTION
272 case '2':
273 ld_protocol = 2;
274 break;
275 case '3':
276 ld_protocol = 3;
277 break;
278 #endif
279 case '4':
280 address_family = AF_INET;
281 break;
282 case '6':
283 #ifdef USE_IPV6
284 address_family = AF_INET6;
285 #else
286 usage (_("IPv6 support not available\n"));
287 #endif
288 break;
289 default:
290 usage (_("check_ldap: could not parse unknown arguments\n"));
291 break;
292 }
293 }
295 c = optind;
296 if (strlen(ld_host) == 0 && is_host(argv[c])) {
297 asprintf (&ld_host, "%s", argv[c++]);
298 }
299 if (strlen(ld_base) == 0 && argv[c]) {
300 asprintf (&ld_base, "%s", argv[c++]);
301 }
303 return validate_arguments ();
304 }
306 int
307 validate_arguments ()
308 {
309 if (strlen(ld_host) == 0)
310 usage (_("please specify the host name\n"));
312 if (strlen(ld_base) == 0)
313 usage (_("please specify the LDAP base\n"));
315 return OK;
317 }