X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_ldap.c;h=400d74ad7655f38bdba16a722b7b76e5076ab625;hb=c326b4dc1dd42a50875578f0e7580125a1ddc03c;hp=ee0b8d6605432e59ec7a04be0319040dcd5a12ce;hpb=59d594d7d3e2897a105365ef5ffa0cdb972c09ac;p=nagiosplug.git

diff --git a/plugins/check_ldap.c b/plugins/check_ldap.c
index ee0b8d6..400d74a 100644
--- a/plugins/check_ldap.c
+++ b/plugins/check_ldap.c
@@ -1,112 +1,80 @@
-/******************************************************************************
-*
-* This program is free software; you can redistribute it and/or modify
+/*****************************************************************************
+* 
+* Nagios check_ldap plugin
+* 
+* License: GPL
+* Copyright (c) 2000-2008 Nagios Plugins Development Team
+* 
+* Description:
+* 
+* This file contains the check_ldap plugin
+* 
+* 
+* This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
-* the Free Software Foundation; either version 2 of the License, or
+* the Free Software Foundation, either version 3 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 General Public License for more details.
-*
+* 
 * You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*
-******************************************************************************/
-
-const char *progname = "check_ldap";
-const char *revision = "$Revision$";
-const char *copyright = "2000-2003";
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+* 
+* 
+*****************************************************************************/
+
+/* progname may be check_ldaps */
+char *progname = "check_ldap";
+const char *copyright = "2000-2008";
 const char *email = "nagiosplug-devel@lists.sourceforge.net";
 
-#include "config.h"
 #include "common.h"
 #include "netutils.h"
 #include "utils.h"
 
 #include <lber.h>
+#define LDAP_DEPRECATED 1
 #include <ldap.h>
 
 enum {
-	UNDEFINED = -1,
+	UNDEFINED = 0,
 #ifdef HAVE_LDAP_SET_OPTION
 	DEFAULT_PROTOCOL = 2,
 #endif
 	DEFAULT_PORT = 389
 };
 
-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]%s\n\
-(Note: all times are in seconds.)\n"),
-	        progname, (HAVE_LDAP_SET_OPTION ? "[-2|-3] [-4|-6]" : ""));
-	printf (_(UT_HLP_VRS), progname, progname);
-}
-
-void
-print_help ()
-{
-	char *myport;
-	asprintf (&myport, "%d", DEFAULT_PORT);
-
-	print_revision (progname, revision);
-
-	printf (_("Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)\n"));
-	printf (_(COPYRIGHT), copyright, email);
-
-	print_usage ();
-
-	printf (_(UT_HELP_VRSN));
-
-	printf (_(UT_HOST_PORT), 'p', myport);
-
-	printf (_(UT_IPv46));
-
-	printf (_("\
- -a [--attr]\n\
-    ldap attribute to search (default: \"(objectclass=*)\"\n\
- -b [--base]\n\
-    ldap base (eg. ou=my unit, o=my org, c=at)\n\
- -D [--bind]\n\
-    ldap bind DN (if required)\n\
- -P [--pass]\n\
-    ldap password (if required)\n"));
-
-#ifdef HAVE_LDAP_SET_OPTION
-	printf (_("\
- -2 [--ver2]\n\
-     use ldap protocol version 2\n\
- -3 [--ver3]\n\
-    use ldap protocol version 3\n\
-    (default protocol version: %d)\n"),
-	        DEFAULT_PROTOCOL);
-#endif
-
-	printf (_(UT_WARN_CRIT));
-
-	printf (_(UT_SUPPORT));
-}
-
 int process_arguments (int, char **);
 int validate_arguments (void);
+void print_help (void);
+void print_usage (void);
 
 char ld_defattr[] = "(objectclass=*)";
 char *ld_attr = ld_defattr;
-char *ld_host = "";
-char *ld_base = "";
+char *ld_host = NULL;
+char *ld_base = NULL;
 char *ld_passwd = NULL;
 char *ld_binddn = NULL;
-unsigned int ld_port = DEFAULT_PORT;
+int ld_port = DEFAULT_PORT;
 #ifdef HAVE_LDAP_SET_OPTION
 int ld_protocol = DEFAULT_PROTOCOL;
 #endif
-int warn_time = UNDEFINED;
-int crit_time = UNDEFINED;
+#ifndef LDAP_OPT_SUCCESS
+# define LDAP_OPT_SUCCESS LDAP_SUCCESS
+#endif
+double warn_time = UNDEFINED;
+double crit_time = UNDEFINED;
+struct timeval tv;
+int starttls = FALSE;
+int ssl_on_connect = FALSE;
+int verbose = 0;
+
+/* for ldap tls */
+
+char *SERVICE = "LDAP";
 
 int
 main (int argc, char *argv[])
@@ -115,11 +83,33 @@ main (int argc, char *argv[])
 	LDAP *ld;
 	LDAPMessage *result;
 
-	int t_diff;
-	time_t time0, time1;
+	/* should be 	int result = STATE_UNKNOWN; */
+
+	int status = STATE_UNKNOWN;
+	long microsec;
+	double elapsed_time;
+
+	/* for ldap tls */
+
+	int tls;
+	int version=3;
+
+	setlocale (LC_ALL, "");
+	bindtextdomain (PACKAGE, LOCALEDIR);
+	textdomain (PACKAGE);
+
+	if (strstr(argv[0],"check_ldaps")) {
+		asprintf (&progname, "check_ldaps");
+ 	}
+
+	/* Parse extra opts if any */
+	argv=np_extra_opts (&argc, argv, progname);
 
 	if (process_arguments (argc, argv) == ERROR)
-		usage (_("check_ldap: could not parse arguments\n"));
+		usage4 (_("Could not parse arguments"));
+
+	if (strstr(argv[0],"check_ldaps") && ! starttls && ! ssl_on_connect)
+		starttls = TRUE;
 
 	/* initialize alarm signal handling */
 	signal (SIGALRM, socket_timeout_alarm_handler);
@@ -128,14 +118,22 @@ main (int argc, char *argv[])
 	alarm (socket_timeout);
 
 	/* get the start time */
-	time (&time0);
+	gettimeofday (&tv, NULL);
 
 	/* initialize ldap */
+#ifdef HAVE_LDAP_INIT
+	if (!(ld = ldap_init (ld_host, ld_port))) {
+		printf ("Could not connect to the server at port %i\n", ld_port);
+		return STATE_CRITICAL;
+	}
+#else
 	if (!(ld = ldap_open (ld_host, ld_port))) {
-		/*ldap_perror(ld, "ldap_open"); */
+		if (verbose)
+			ldap_perror(ld, "ldap_open");
 		printf (_("Could not connect to the server at port %i\n"), ld_port);
 		return STATE_CRITICAL;
 	}
+#endif /* HAVE_LDAP_INIT */
 
 #ifdef HAVE_LDAP_SET_OPTION
 	/* set ldap options */
@@ -145,18 +143,64 @@ main (int argc, char *argv[])
 		return STATE_CRITICAL;
 	}
 #endif
+
+	if (ld_port == LDAPS_PORT || ssl_on_connect) {
+		asprintf (&SERVICE, "LDAPS");
+#if defined(HAVE_LDAP_SET_OPTION) && defined(LDAP_OPT_X_TLS)
+		/* ldaps: set option tls */
+		tls = LDAP_OPT_X_TLS_HARD;
+
+		if (ldap_set_option (ld, LDAP_OPT_X_TLS, &tls) != LDAP_SUCCESS)
+		{
+			if (verbose)
+				ldap_perror(ld, "ldaps_option");
+			printf (_("Could not init TLS at port %i!\n"), ld_port);
+			return STATE_CRITICAL;
+		}
+#else
+		printf (_("TLS not supported by the libraries!\n"));
+		return STATE_CRITICAL;
+#endif /* LDAP_OPT_X_TLS */
+	} else if (starttls) {
+		asprintf (&SERVICE, "LDAP-TLS");
+#if defined(HAVE_LDAP_SET_OPTION) && defined(HAVE_LDAP_START_TLS_S)
+		/* ldap with startTLS: set option version */
+		if (ldap_get_option(ld,LDAP_OPT_PROTOCOL_VERSION, &version) == LDAP_OPT_SUCCESS )
+		{
+			if (version < LDAP_VERSION3)
+			{
+				version = LDAP_VERSION3;
+				ldap_set_option(ld, LDAP_OPT_PROTOCOL_VERSION, &version);
+			}
+		}
+		/* call start_tls */
+		if (ldap_start_tls_s(ld, NULL, NULL) != LDAP_SUCCESS)
+		{
+			if (verbose)
+				ldap_perror(ld, "ldap_start_tls");
+			printf (_("Could not init startTLS at port %i!\n"), ld_port);
+			return STATE_CRITICAL;
+		}
+#else
+		printf (_("startTLS not supported by the library, needs LDAPv3!\n"));
+		return STATE_CRITICAL;
+#endif /* HAVE_LDAP_START_TLS_S */
+	}
+
 	/* 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"));
+		if (verbose)
+			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"); */
+		if (verbose)
+			ldap_perror(ld, "ldap_search");
 		printf (_("Could not search/find objectclasses in %s\n"), ld_base);
 		return STATE_CRITICAL;
 	}
@@ -167,26 +211,28 @@ main (int argc, char *argv[])
 	/* reset the alarm handler */
 	alarm (0);
 
-	/* get the finish time */
-	time (&time1);
-
 	/* calcutate the elapsed time and compare to thresholds */
-	t_diff = time1 - time0;
 
-	if (crit_time!=UNDEFINED && t_diff>=crit_time) {
-		printf (_("LDAP CRITICAL - %i seconds response time\n"), t_diff);
-		return STATE_CRITICAL;
-	}
+	microsec = deltime (tv);
+	elapsed_time = (double)microsec / 1.0e6;
 
-	if (warn_time!=UNDEFINED && t_diff>=warn_time) {
-		printf (_("LDAP WARNING - %i seconds response time\n"), t_diff);
-		return STATE_WARNING;
-	}
+	if (crit_time!=UNDEFINED && elapsed_time>crit_time)
+		status = STATE_CRITICAL;
+	else if (warn_time!=UNDEFINED && elapsed_time>warn_time)
+		status = STATE_WARNING;
+	else
+		status = STATE_OK;
 
 	/* print out the result */
-	printf (_("LDAP OK - %i seconds response time\n"), t_diff);
-
-	return STATE_OK;
+	printf (_("LDAP %s - %.3f seconds response time|%s\n"),
+	        state_text (status),
+	        elapsed_time,
+	        fperfdata ("time", elapsed_time, "s",
+	                  (int)warn_time, warn_time,
+	                  (int)crit_time, crit_time,
+	                  TRUE, 0, FALSE, 0));
+
+	return status;
 }
 
 /* process command-line arguments */
@@ -195,7 +241,7 @@ process_arguments (int argc, char **argv)
 {
 	int c;
 
-	int option_index = 0;
+	int option = 0;
 	/* initialize the long option struct */
 	static struct option longopts[] = {
 		{"help", no_argument, 0, 'h'},
@@ -210,11 +256,14 @@ process_arguments (int argc, char **argv)
 		{"ver2", no_argument, 0, '2'},
 		{"ver3", no_argument, 0, '3'},
 #endif
+		{"starttls", no_argument, 0, 'T'},
+		{"ssl", no_argument, 0, 'S'},
 		{"use-ipv4", no_argument, 0, '4'},
 		{"use-ipv6", no_argument, 0, '6'},
 		{"port", required_argument, 0, 'p'},
 		{"warn", required_argument, 0, 'w'},
 		{"crit", required_argument, 0, 'c'},
+		{"verbose", no_argument, 0, 'v'},
 		{0, 0, 0, 0}
 	};
 
@@ -227,7 +276,7 @@ process_arguments (int argc, char **argv)
 	}
 
 	while (1) {
-		c = getopt_long (argc, argv, "hV2346t:c:w:H:b:p:a:D:P:", longopts, &option_index);
+		c = getopt_long (argc, argv, "hvV234TS6t:c:w:H:b:p:a:D:P:", longopts, &option);
 
 		if (c == -1 || c == EOF)
 			break;
@@ -237,12 +286,13 @@ process_arguments (int argc, char **argv)
 			print_help ();
 			exit (STATE_OK);
 		case 'V':									/* version */
-			print_revision (progname, revision);
+			print_revision (progname, NP_VERSION);
 			exit (STATE_OK);
 		case 't':									/* timeout period */
 			if (!is_intnonneg (optarg))
-				usage2 (_("timeout interval must be a positive integer"), optarg);
-			socket_timeout = atoi (optarg);
+				usage2 (_("Timeout interval must be a positive integer"), optarg);
+			else
+				socket_timeout = atoi (optarg);
 			break;
 		case 'H':
 			ld_host = optarg;
@@ -263,10 +313,10 @@ process_arguments (int argc, char **argv)
 			ld_passwd = optarg;
 			break;
 		case 'w':
-			warn_time = atoi (optarg);
+			warn_time = strtod (optarg, NULL);
 			break;
 		case 'c':
-			crit_time = atoi (optarg);
+			crit_time = strtod (optarg, NULL);
 			break;
 #ifdef HAVE_LDAP_SET_OPTION
 		case '2':
@@ -279,6 +329,22 @@ process_arguments (int argc, char **argv)
 		case '4':
 			address_family = AF_INET;
 			break;
+		case 'v':
+			verbose++;
+			break;
+		case 'T':
+			if (! ssl_on_connect)
+				starttls = TRUE;
+			else
+				usage_va(_("%s cannot be combined with %s"), "-T/--starttls", "-S/--ssl");
+			break;
+		case 'S':
+			if (! starttls) {
+				ssl_on_connect = TRUE;
+				ld_port = LDAPS_PORT;
+			} else
+				usage_va(_("%s cannot be combined with %s"), "-S/--ssl", "-T/--starttls");
+			break;
 		case '6':
 #ifdef USE_IPV6
 			address_family = AF_INET6;
@@ -287,31 +353,113 @@ process_arguments (int argc, char **argv)
 #endif
 			break;
 		default:
-			usage (_("check_ldap: could not parse unknown arguments\n"));
-			break;
+			usage5 ();
 		}
 	}
 
 	c = optind;
-	if (strlen(ld_host) == 0 && is_host(argv[c])) {
-		asprintf (&ld_host, "%s", argv[c++]);
-	}
-	if (strlen(ld_base) == 0 && argv[c]) {
-		asprintf (&ld_base, "%s", argv[c++]);
-	}
+	if (ld_host == NULL && is_host(argv[c]))
+		ld_host = strdup (argv[c++]);
+
+	if (ld_base == NULL && argv[c])
+		ld_base = strdup (argv[c++]);
 
 	return validate_arguments ();
 }
 
+
 int
 validate_arguments ()
 {
-	if (strlen(ld_host) == 0)
-		usage (_("please specify the host name\n"));
+	if (ld_host==NULL || strlen(ld_host)==0)
+		usage4 (_("Please specify the host name\n"));
 
-	if (strlen(ld_base) == 0)
-		usage (_("please specify the LDAP base\n"));
+	if (ld_base==NULL)
+		usage4 (_("Please specify the LDAP base\n"));
 
 	return OK;
+}
+
+
+void
+print_help (void)
+{
+	char *myport;
+	asprintf (&myport, "%d", DEFAULT_PORT);
+
+	print_revision (progname, NP_VERSION);
+
+	printf ("Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)\n");
+	printf (COPYRIGHT, copyright, email);
+
+	printf ("\n\n");
+
+	print_usage ();
 
+	printf (_(UT_HELP_VRSN));
+	printf (_(UT_EXTRA_OPTS));
+
+	printf (_(UT_HOST_PORT), 'p', myport);
+
+	printf (_(UT_IPv46));
+
+	printf (" %s\n", "-a [--attr]");
+  printf ("    %s\n", _("ldap attribute to search (default: \"(objectclass=*)\""));
+  printf (" %s\n", "-b [--base]");
+  printf ("    %s\n", _("ldap base (eg. ou=my unit, o=my org, c=at"));
+  printf (" %s\n", "-D [--bind]");
+  printf ("    %s\n", _("ldap bind DN (if required)"));
+  printf (" %s\n", "-P [--pass]");
+  printf ("    %s\n", _("ldap password (if required)"));
+  printf (" %s\n", "-T [--starttls]");
+  printf ("    %s\n", _("use starttls mechanism introduced in protocol version 3"));
+  printf (" %s\n", "-S [--ssl]");
+  printf ("    %s %i\n", _("use ldaps (ldap v2 ssl method). this also sets the default port to"), LDAPS_PORT);
+
+#ifdef HAVE_LDAP_SET_OPTION
+	printf (" %s\n", "-2 [--ver2]");
+  printf ("    %s\n", _("use ldap protocol version 2"));
+  printf (" %s\n", "-3 [--ver3]");
+  printf ("    %s\n", _("use ldap protocol version 3"));
+  printf ("    (%s %d)\n", _("default protocol version:"), DEFAULT_PROTOCOL);
+#endif
+
+	printf (_(UT_WARN_CRIT));
+
+	printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
+
+	printf (_(UT_VERBOSE));
+
+	printf ("\n");
+	printf ("%s\n", _("Notes:"));
+	printf (" %s\n", _("If this plugin is called via 'check_ldaps', method 'STARTTLS' will be"));
+	printf (_(" implied (using default port %i) unless --port=636 is specified. In that case\n"), DEFAULT_PORT);
+	printf (" %s\n", _("'SSL on connect' will be used no matter how the plugin was called."));
+	printf (" %s\n", _("This detection is deprecated, please use 'check_ldap' with the '--starttls' or '--ssl' flags"));
+	printf (" %s\n", _("to define the behaviour explicitly instead."));
+#ifdef NP_EXTRA_OPTS
+	printf ("\n");
+	printf (_(UT_EXTRA_OPTS_NOTES));
+#endif
+
+	printf (_(UT_SUPPORT));
+}
+
+/* todo
+* add option -4 and -6 to the long manual
+*
+*/
+
+void
+print_usage (void)
+{
+  printf (_("Usage:"));
+	printf (" %s -H <host> -b <base_dn> [-p <port>] [-a <attr>] [-D <binddn>]",progname);
+  printf ("\n       [-P <password>] [-w <warn_time>] [-c <crit_time>] [-t timeout]%s\n",
+#ifdef HAVE_LDAP_SET_OPTION
+			"\n       [-2|-3] [-4|-6]"
+#else
+			""
+#endif
+			);
 }