![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/plugins/check_tcp.c b/plugins/check_tcp.c
index cbe859568a7b051cda21cf963a4848b4630fca9a..ad8b0429009d40037f474d71f1daeae56e6a14d8 100644 (file)
--- a/plugins/check_tcp.c
+++ b/plugins/check_tcp.c
-/******************************************************************************
- *
- * This file is part of the Nagios Plugins.
- *
- * Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>
- *
- * The Nagios Plugins are free software; you can redistribute them
- * and/or modify them under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 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.
- *
- * $Id$
- *
- *****************************************************************************/
-
-#define PROGRAM check_tcp
-#define REVISION "$Revision$"
-#define DESCRIPTION "Check a TCP port"
-#define AUTHOR "Ethan Galstad"
-#define EMAIL "nagios@nagios.org"
-#define COPYRIGHTDATE "2002"
-
-#include "config.h"
+/*****************************************************************************
+
+ 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
+ (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.
+
+ $Id$
+
+*****************************************************************************/
+
+/* progname "check_tcp" changes depending on symlink called */
+char *progname;
+const char *revision = "$Revision$";
+const char *copyright = "1999-2004";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
+
#include "common.h"
#include "netutils.h"
#include "utils.h"
#ifdef HAVE_SSL_H
-#include <rsa.h>
-#include <crypto.h>
-#include <x509.h>
-#include <pem.h>
-#include <ssl.h>
-#include <err.h>
-#endif
-
-#ifdef HAVE_OPENSSL_SSL_H
-#include <openssl/rsa.h>
-#include <openssl/crypto.h>
-#include <openssl/x509.h>
-#include <openssl/pem.h>
-#include <openssl/ssl.h>
-#include <openssl/err.h>
+# include <rsa.h>
+# include <crypto.h>
+# include <x509.h>
+# include <pem.h>
+# include <ssl.h>
+# include <err.h>
+#else
+# ifdef HAVE_OPENSSL_SSL_H
+# include <openssl/rsa.h>
+# include <openssl/crypto.h>
+# include <openssl/x509.h>
+# include <openssl/pem.h>
+# include <openssl/ssl.h>
+# include <openssl/err.h>
+# endif
#endif
#ifdef HAVE_SSL
-SSL_CTX *ctx;
-SSL *ssl;
-int connect_SSL (void);
+static int check_cert = FALSE;
+static int days_till_exp;
+static char *randbuff = "";
+static SSL_CTX *ctx;
+static SSL *ssl;
+static X509 *server_cert;
+static int connect_SSL (void);
+static int check_certificate (X509 **);
+# define my_recv(buf, len) ((flags & FLAG_SSL) ? SSL_read(ssl, buf, len) : read(sd, buf, len))
+#else
+# define my_recv(buf, len) read(sd, buf, len)
#endif
-#define TCP_PROTOCOL 1
-#define UDP_PROTOCOL 2
-int process_arguments (int, char **);
-void print_usage (void);
+/* int my_recv(char *, size_t); */
+static int process_arguments (int, char **);
void print_help (void);
+void print_usage (void);
-char *PROGNAME = NULL;
-char *SERVICE = NULL;
-char *SEND = NULL;
-char *EXPECT = NULL;
-char *QUIT = NULL;
-int PROTOCOL = 0;
-int PORT = 0;
-
-int server_port = 0;
-char *server_address = NULL;
-char *server_send = NULL;
-char *server_quit = NULL;
-char **server_expect = NULL;
-int server_expect_count = 0;
-char **warn_codes = NULL;
-int warn_codes_count = 0;
-char **crit_codes = NULL;
-int crit_codes_count = 0;
-int delay = 0;
-double warning_time = 0;
-int check_warning_time = FALSE;
-double critical_time = 0;
-int check_critical_time = FALSE;
-double elapsed_time = 0;
-int verbose = FALSE;
-int use_ssl = FALSE;
-int sd = 0;
+#define EXPECT server_expect[0]
+static char *SERVICE = "TCP";
+static char *SEND = NULL;
+static char *QUIT = NULL;
+static int PROTOCOL = IPPROTO_TCP; /* most common is default */
+static int PORT = 0;
+
+static char timestamp[17] = "";
+static int server_port = 0;
+static char *server_address = NULL;
+static char *server_send = NULL;
+static char *server_quit = NULL;
+static char **server_expect;
+static size_t server_expect_count = 0;
+static size_t maxbytes = 0;
+static char **warn_codes = NULL;
+static size_t warn_codes_count = 0;
+static char **crit_codes = NULL;
+static size_t crit_codes_count = 0;
+static unsigned int delay = 0;
+static double warning_time = 0;
+static double critical_time = 0;
+static double elapsed_time = 0;
+static long microsec;
+static int sd = 0;
+#define MAXBUF 1024
+static char buffer[MAXBUF];
+static int expect_mismatch_state = STATE_WARNING;
+
+#define FLAG_SSL 0x01
+#define FLAG_VERBOSE 0x02
+#define FLAG_EXACT_MATCH 0x04
+#define FLAG_TIME_WARN 0x08
+#define FLAG_TIME_CRIT 0x10
+#define FLAG_HIDE_OUTPUT 0x20
+static size_t flags = FLAG_EXACT_MATCH;
int
main (int argc, char **argv)
{
- int result;
+ int result = STATE_UNKNOWN;
int i;
- char *buffer = "";
- char *status = "";
+ char *status = NULL;
struct timeval tv;
-
- if (strstr (argv[0], "check_udp")) {
- asprintf (&PROGNAME, "check_udp");
- asprintf (&SERVICE, "UDP");
- SEND = NULL;
- EXPECT = NULL;
- QUIT = NULL;
- PROTOCOL = UDP_PROTOCOL;
- PORT = 0;
+ size_t len, match = -1;
+
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ /* determine program- and service-name quickly */
+ progname = strrchr(argv[0], '/');
+ if(progname != NULL) progname++;
+ else progname = argv[0];
+
+ len = strlen(progname);
+ if(len > 6 && !memcmp(progname, "check_", 6)) {
+ SERVICE = progname + 6;
+ for(i = 0; i < len - 6; i++)
+ SERVICE[i] = toupper(SERVICE[i]);
}
- else if (strstr (argv[0], "check_tcp")) {
- asprintf (&PROGNAME, "check_tcp");
- asprintf (&SERVICE, "TCP");
- SEND = NULL;
- EXPECT = NULL;
- QUIT = NULL;
- PROTOCOL = TCP_PROTOCOL;
- PORT = 0;
+
+ /* set up a resonable buffer at first (will be realloc()'ed if
+ * user specifies other options) */
+ server_expect = calloc(sizeof(char *), 2);
+
+ /* determine defaults for this service's protocol */
+ if (!strncmp(SERVICE, "UDP", 3)) {
+ PROTOCOL = IPPROTO_UDP;
}
- else if (strstr (argv[0], "check_ftp")) {
- asprintf (&PROGNAME, "check_ftp");
- asprintf (&SERVICE, "FTP");
- SEND = NULL;
- asprintf (&EXPECT, "220");
- asprintf (&QUIT, "QUIT\r\n");
- PROTOCOL = TCP_PROTOCOL;
+ else if (!strncmp(SERVICE, "FTP", 3)) {
+ EXPECT = "220";
+ QUIT = "QUIT\r\n";
PORT = 21;
}
- else if (strstr (argv[0], "check_smtp")) {
- asprintf (&PROGNAME, "check_smtp");
- asprintf (&SERVICE, "SMTP");
- SEND = NULL;
- asprintf (&EXPECT, "220");
- asprintf (&QUIT, "QUIT\r\n");
- PROTOCOL = TCP_PROTOCOL;
- PORT = 25;
- }
- else if (strstr (argv[0], "check_pop")) {
- asprintf (&PROGNAME, "check_pop");
- asprintf (&SERVICE, "POP");
- SEND = NULL;
- asprintf (&EXPECT, "+OK");
- asprintf (&QUIT, "QUIT\r\n");
- PROTOCOL = TCP_PROTOCOL;
+ else if (!strncmp(SERVICE, "POP", 3) || !strncmp(SERVICE, "POP3", 4)) {
+ EXPECT = "+OK";
+ QUIT = "QUIT\r\n";
PORT = 110;
}
- else if (strstr (argv[0], "check_imap")) {
- asprintf (&PROGNAME, "check_imap");
- asprintf (&SERVICE, "IMAP");
- SEND = NULL;
- asprintf (&EXPECT, "* OK");
- asprintf (&QUIT, "a1 LOGOUT\r\n");
- PROTOCOL = TCP_PROTOCOL;
+ else if (!strncmp(SERVICE, "SMTP", 4)) {
+ EXPECT = "220";
+ QUIT = "QUIT\r\n";
+ PORT = 25;
+ }
+ else if (!strncmp(SERVICE, "IMAP", 4)) {
+ EXPECT = "* OK";
+ QUIT = "a1 LOGOUT\r\n";
PORT = 143;
}
#ifdef HAVE_SSL
- else if (strstr(argv[0],"check_simap")) {
- asprintf (&PROGNAME, "check_simap");
- asprintf (&SERVICE, "SIMAP");
- SEND=NULL;
- asprintf (&EXPECT, "* OK");
- asprintf (&QUIT, "a1 LOGOUT\r\n");
- PROTOCOL=TCP_PROTOCOL;
- use_ssl=TRUE;
- PORT=993;
+ else if (!strncmp(SERVICE, "SIMAP", 5)) {
+ EXPECT = "* OK";
+ QUIT = "a1 LOGOUT\r\n";
+ flags |= FLAG_SSL;
+ PORT = 993;
+ }
+ else if (!strncmp(SERVICE, "SPOP", 4)) {
+ EXPECT = "+OK";
+ QUIT = "QUIT\r\n";
+ flags |= FLAG_SSL;
+ PORT = 995;
+ }
+ else if (!strncmp(SERVICE, "SSMTP", 5)) {
+ EXPECT = "220";
+ QUIT = "QUIT\r\n";
+ flags |= FLAG_SSL;
+ PORT = 465;
}
- else if (strstr(argv[0],"check_spop")) {
- asprintf (&PROGNAME, "check_spop");
- asprintf (&SERVICE, "SPOP");
- SEND=NULL;
- asprintf (&EXPECT, "110");
- asprintf (&QUIT, "QUIT\r\n");
- PROTOCOL=TCP_PROTOCOL;
- use_ssl=TRUE;
- PORT=995;
+ else if (!strncmp(SERVICE, "JABBER", 6)) {
+ SEND = "<stream:stream to=\'host\' xmlns=\'jabber:client\' xmlns:stream=\'http://etherx.jabber.org/streams\'>\n";
+ EXPECT = "<?xml version=\'1.0\'?><stream:stream xmlns:stream=\'http://etherx.jabber.org/streams\'";
+ QUIT = "</stream:stream>\n";
+ flags |= FLAG_SSL | FLAG_HIDE_OUTPUT;
+ PORT = 5222;
+ }
+ else if (!strncmp (SERVICE, "NNTPS", 5)) {
+ server_expect_count = 2;
+ server_expect[0] = "200";
+ server_expect[1] = "201";
+ QUIT = "QUIT\r\n";
+ flags |= FLAG_SSL;
+ PORT = 563;
}
#endif
- else if (strstr (argv[0], "check_nntp")) {
- asprintf (&PROGNAME, "check_nntp");
- asprintf (&SERVICE, "NNTP");
- SEND = NULL;
- EXPECT = NULL;
- server_expect = realloc (server_expect, ++server_expect_count);
- asprintf (&server_expect[server_expect_count - 1], "200");
- server_expect = realloc (server_expect, ++server_expect_count);
- asprintf (&server_expect[server_expect_count - 1], "201");
- asprintf (&QUIT, "QUIT\r\n");
- PROTOCOL = TCP_PROTOCOL;
+ else if (!strncmp (SERVICE, "NNTP", 4)) {
+ server_expect_count = 2;
+ server_expect = malloc(sizeof(char *) * server_expect_count);
+ server_expect[0] = strdup("200");
+ server_expect[1] = strdup("201");
+ QUIT = "QUIT\r\n";
PORT = 119;
}
- else {
- usage ("ERROR: Generic check_tcp called with unknown service\n");
- }
+ /* fallthrough check, so it's supposed to use reverse matching */
+ else if (strcmp (SERVICE, "TCP"))
+ usage (_("CRITICAL - Generic check_tcp called with unknown service\n"));
- asprintf (&server_address, "127.0.0.1");
+ server_address = "127.0.0.1";
server_port = PORT;
server_send = SEND;
server_quit = QUIT;
+ status = NULL;
if (process_arguments (argc, argv) == ERROR)
- usage ("Could not parse arguments\n");
+ usage4 (_("Could not parse arguments"));
- /* use default expect if none listed in process_arguments() */
- if (EXPECT && server_expect_count == 0) {
- server_expect = malloc (++server_expect_count);
- server_expect[server_expect_count - 1] = EXPECT;
+ if(flags & FLAG_VERBOSE) {
+ printf("Using service %s\n", SERVICE);
+ printf("Port: %d\n", PORT);
+ printf("flags: 0x%x\n", flags);
}
- /* initialize alarm signal handling */
- signal (SIGALRM, socket_timeout_alarm_handler);
+ if(EXPECT && !server_expect_count)
+ server_expect_count++;
- /* set socket timeout */
+ /* set up the timer */
+ signal (SIGALRM, socket_timeout_alarm_handler);
alarm (socket_timeout);
/* try to connect to the host at the given port number */
gettimeofday (&tv, NULL);
#ifdef HAVE_SSL
- if (use_ssl)
+ if (flags & FLAG_SSL && check_cert == TRUE) {
+ if (connect_SSL () != OK)
+ die (STATE_CRITICAL,_("CRITICAL - Could not make SSL connection\n"));
+ if ((server_cert = SSL_get_peer_certificate (ssl)) != NULL) {
+ result = check_certificate (&server_cert);
+ X509_free(server_cert);
+ }
+ else {
+ printf(_("CRITICAL - Cannot retrieve server certificate.\n"));
+ result = STATE_CRITICAL;
+ }
+
+ SSL_shutdown (ssl);
+ SSL_free (ssl);
+ SSL_CTX_free (ctx);
+ close (sd);
+ return result;
+ }
+ else if (flags & FLAG_SSL)
result = connect_SSL ();
else
#endif
- {
- if (PROTOCOL == UDP_PROTOCOL)
- result = my_udp_connect (server_address, server_port, &sd);
- else /* default is TCP */
- result = my_tcp_connect (server_address, server_port, &sd);
- }
+ result = np_net_connect (server_address, server_port, &sd, PROTOCOL);
if (result == STATE_CRITICAL)
return STATE_CRITICAL;
if (server_send != NULL) { /* Something to send? */
- asprintf (&server_send, "%s\r\n", server_send);
#ifdef HAVE_SSL
- if (use_ssl)
- SSL_write(ssl, server_send, strlen (server_send));
+ if (flags & FLAG_SSL)
+ SSL_write(ssl, server_send, (int)strlen(server_send));
else
#endif
- send (sd, server_send, strlen (server_send), 0);
+ send (sd, server_send, strlen(server_send), 0);
}
if (delay > 0) {
sleep (delay);
}
- if (server_send || server_expect_count > 0) {
+ if(flags & FLAG_VERBOSE) {
+ printf("server_expect_count: %d\n", server_expect_count);
+ for(i = 0; i < server_expect_count; i++)
+ printf("\t%d: %s\n", i, server_expect[i]);
+ }
+
+ /* if(len) later on, we know we have a non-NULL response */
+ len = 0;
+ if (server_expect_count) {
- buffer = malloc (MAX_INPUT_BUFFER);
/* watch for the expect string */
-#ifdef HAVE_SSL
- if (use_ssl && SSL_read (ssl, buffer, MAX_INPUT_BUFFER - 1) > 0)
- asprintf (&status, "%s%s", status, buffer);
- else
-#endif
- if (recv (sd, buffer, MAX_INPUT_BUFFER - 1, 0) > 0)
- asprintf (&status, "%s%s", status, buffer);
-
- /* return a CRITICAL status if we couldn't read any data */
- if (status == NULL)
- terminate (STATE_CRITICAL, "No data received from host\n");
-
- strip (status);
-
- if (status && verbose)
- printf ("%s\n", status);
-
- if (server_expect_count > 0) {
- for (i = 0;; i++) {
- if (verbose)
- printf ("%d %d\n", i, server_expect_count);
- if (i >= server_expect_count)
- terminate (STATE_WARNING, "Invalid response from host\n");
- if (strstr (status, server_expect[i]))
- break;
+ while ((i = my_recv(buffer, sizeof(buffer))) > 0) {
+ status = realloc(status, len + i + 1);
+ memcpy(&status[len], buffer, i);
+ len += i;
+
+ /* stop reading if user-forced or data-starved */
+ if(i < sizeof(buffer) || (maxbytes && len >= maxbytes))
+ break;
+
+ if (maxbytes && len >= maxbytes)
+ break;
+ }
+
+ /* no data when expected, so return critical */
+ if (len == 0)
+ die (STATE_CRITICAL, _("No data received from host\n"));
+
+ /* force null-termination and strip whitespace from end of output */
+ status[len--] = '\0';
+ /* print raw output if we're debugging */
+ if(flags & FLAG_VERBOSE)
+ printf("received %d bytes from host\n#-raw-recv-------#\n%s\n#-raw-recv-------#\n",
+ len + 1, status);
+ while(isspace(status[len])) status[len--] = '\0';
+
+ for (i = 0; i < server_expect_count; i++) {
+ match = -2; /* tag it so we know if we tried and failed */
+ if (flags & FLAG_VERBOSE)
+ printf ("looking for [%s] %s [%s]\n", server_expect[i],
+ (flags & FLAG_EXACT_MATCH) ? "in beginning of" : "anywhere in",
+ status);
+
+ /* match it. math first in short-circuit */
+ if ((flags & FLAG_EXACT_MATCH && !strncmp(status, server_expect[i], strlen(server_expect[i]))) ||
+ (!(flags & FLAG_EXACT_MATCH) && strstr(status, server_expect[i])))
+ {
+ if(flags & FLAG_VERBOSE) puts("found it");
+ match = i;
+ break;
}
}
}
- if (server_quit)
+ if (server_quit != NULL) {
#ifdef HAVE_SSL
- if (use_ssl) {
- SSL_write (ssl, QUIT, strlen (QUIT));
+ if (flags & FLAG_SSL) {
+ SSL_write (ssl, server_quit, (int)strlen(server_quit));
SSL_shutdown (ssl);
SSL_free (ssl);
SSL_CTX_free (ctx);
}
else
#endif
- send (sd, server_quit, strlen (server_quit), 0);
+ send (sd, server_quit, strlen (server_quit), 0);
+ }
/* close the connection */
if (sd)
close (sd);
- elapsed_time = delta_time (tv);
+ microsec = deltime (tv);
+ elapsed_time = (double)microsec / 1.0e6;
- if (check_critical_time == TRUE && elapsed_time > critical_time)
+ if (flags & FLAG_TIME_CRIT && elapsed_time > critical_time)
result = STATE_CRITICAL;
- else if (check_warning_time == TRUE && elapsed_time > warning_time)
+ else if (flags & FLAG_TIME_WARN && elapsed_time > warning_time)
+ result = STATE_WARNING;
+
+ /* did we get the response we hoped? */
+ if(match == -2 && result != STATE_CRITICAL)
result = STATE_WARNING;
/* reset the alarm */
alarm (0);
- printf
- ("%s %s - %7.3f second response time on port %d",
- SERVICE,
- state_text (result), elapsed_time, server_port);
+ /* this is a bit stupid, because we don't want to print the
+ * response time (which can look ok to the user) if we didn't get
+ * the response we were looking for. if-else */
+ printf(_("%s %s - "), SERVICE, state_text(result));
- if (status && strlen(status) > 0)
- printf (" [%s]", status);
+ if(match == -2 && len && !(flags & FLAG_HIDE_OUTPUT))
+ printf("Unexpected response from host: %s", status);
+ else
+ printf("%.3f second response time on port %d",
+ elapsed_time, server_port);
- printf ("|time=%7.3f\n", elapsed_time);
+ if (match != -2 && !(flags & FLAG_HIDE_OUTPUT) && len)
+ printf (" [%s]", status);
+ /* perf-data doesn't apply when server doesn't talk properly,
+ * so print all zeroes on warn and crit */
+ if(match == -2)
+ printf ("|time=%fs;0.0;0.0;0.0;0.0", elapsed_time);
+ else
+ printf("|%s",
+ fperfdata ("time", elapsed_time, "s",
+ TRUE, warning_time,
+ TRUE, critical_time,
+ TRUE, 0,
+ TRUE, socket_timeout)
+ );
+
+ putchar('\n');
return result;
}
-
-
-
-
/* process command-line arguments */
-int
+static int
process_arguments (int argc, char **argv)
{
int c;
-#ifdef HAVE_GETOPT_H
- int option_index = 0;
- static struct option long_options[] = {
+ int option = 0;
+ static struct option longopts[] = {
{"hostname", required_argument, 0, 'H'},
{"critical-time", required_argument, 0, 'c'},
{"warning-time", required_argument, 0, 'w'},
{"port", required_argument, 0, 'p'},
{"send", required_argument, 0, 's'},
{"expect", required_argument, 0, 'e'},
+ {"maxbytes", required_argument, 0, 'm'},
{"quit", required_argument, 0, 'q'},
+ {"jail", required_argument, 0, 'j'},
{"delay", required_argument, 0, 'd'},
+ {"refuse", required_argument, 0, 'r'},
+ {"mismatch", required_argument, 0, 'M'},
+ {"use-ipv4", no_argument, 0, '4'},
+ {"use-ipv6", no_argument, 0, '6'},
{"verbose", no_argument, 0, 'v'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
+#ifdef HAVE_SSL
+ {"ssl", no_argument, 0, 'S'},
+ {"certificate", required_argument, 0, 'D'},
+#endif
{0, 0, 0, 0}
};
-#endif
if (argc < 2)
- usage ("No arguments found\n");
+ usage4 (_("No arguments found"));
/* backwards compatibility */
for (c = 1; c < argc; c++) {
}
while (1) {
-#ifdef HAVE_GETOPT_H
- c =
- getopt_long (argc, argv, "+hVvH:s:e:q:c:w:t:p:C:W:d:S", long_options,
- &option_index);
-#else
- c = getopt (argc, argv, "+hVvH:s:e:q:c:w:t:p:C:W:d:S");
-#endif
+ c = getopt_long (argc, argv, "+hVv46H:s:e:q:m:c:w:t:p:C:W:d:Sr:jD:M:",
+ longopts, &option);
if (c == -1 || c == EOF || c == 1)
break;
switch (c) {
case '?': /* print short usage statement if args not parsable */
- printf ("%s: Unknown argument: %s\n\n", my_basename (argv[0]), optarg);
- print_usage ();
- exit (STATE_UNKNOWN);
+ usage2 (_("Unknown argument"), optarg);
case 'h': /* help */
print_help ();
exit (STATE_OK);
case 'V': /* version */
- print_revision (PROGNAME, "$Revision$");
+ print_revision (progname, revision);
exit (STATE_OK);
case 'v': /* verbose mode */
- verbose = TRUE;
+ flags |= FLAG_VERBOSE;
+ break;
+ case '4':
+ address_family = AF_INET;
+ break;
+ case '6':
+#ifdef USE_IPV6
+ address_family = AF_INET6;
+#else
+ usage4 (_("IPv6 support not available"));
+#endif
break;
case 'H': /* hostname */
if (is_host (optarg) == FALSE)
- usage ("Invalid host name/address\n");
+ usage2 (_("Invalid hostname/address"), optarg);
server_address = optarg;
break;
case 'c': /* critical */
if (!is_intnonneg (optarg))
- usage ("Critical threshold must be a nonnegative integer\n");
- critical_time = strtod (optarg, NULL);
- check_critical_time = TRUE;
+ usage4 (_("Critical threshold must be a positive integer"));
+ else
+ critical_time = strtod (optarg, NULL);
+ flags |= FLAG_TIME_CRIT;
+ break;
+ case 'j': /* hide output */
+ flags |= FLAG_HIDE_OUTPUT;
break;
case 'w': /* warning */
if (!is_intnonneg (optarg))
- usage ("Warning threshold must be a nonnegative integer\n");
- warning_time = strtod (optarg, NULL);
- check_warning_time = TRUE;
+ usage4 (_("Warning threshold must be a positive integer"));
+ else
+ warning_time = strtod (optarg, NULL);
+ flags |= FLAG_TIME_WARN;
break;
case 'C':
crit_codes = realloc (crit_codes, ++crit_codes_count);
break;
case 't': /* timeout */
if (!is_intpos (optarg))
- usage ("Timeout interval must be a positive integer\n");
- socket_timeout = atoi (optarg);
+ usage4 (_("Timeout interval must be a positive integer"));
+ else
+ socket_timeout = atoi (optarg);
break;
case 'p': /* port */
if (!is_intpos (optarg))
- usage ("Server port must be a positive integer\n");
- server_port = atoi (optarg);
+ usage4 (_("Port must be a positive integer"));
+ else
+ server_port = atoi (optarg);
break;
case 's':
server_send = optarg;
break;
case 'e': /* expect string (may be repeated) */
EXPECT = NULL;
+ flags &= ~FLAG_EXACT_MATCH;
if (server_expect_count == 0)
- server_expect = malloc (++server_expect_count);
+ server_expect = malloc (sizeof (char *) * (++server_expect_count));
else
- server_expect = realloc (server_expect, ++server_expect_count);
+ server_expect = realloc (server_expect, sizeof (char *) * (++server_expect_count));
server_expect[server_expect_count - 1] = optarg;
break;
+ case 'm':
+ if (!is_intpos (optarg))
+ usage4 (_("Maxbytes must be a positive integer"));
+ else
+ maxbytes = strtol (optarg, NULL, 0);
case 'q':
- server_quit = optarg;
+ asprintf(&server_quit, "%s\r\n", optarg);
+ break;
+ case 'r':
+ if (!strncmp(optarg,"ok",2))
+ econn_refuse_state = STATE_OK;
+ else if (!strncmp(optarg,"warn",4))
+ econn_refuse_state = STATE_WARNING;
+ else if (!strncmp(optarg,"crit",4))
+ econn_refuse_state = STATE_CRITICAL;
+ else
+ usage4 (_("Refuse must be one of ok, warn, crit"));
+ break;
+ case 'M':
+ if (!strncmp(optarg,"ok",2))
+ expect_mismatch_state = STATE_OK;
+ else if (!strncmp(optarg,"warn",4))
+ expect_mismatch_state = STATE_WARNING;
+ else if (!strncmp(optarg,"crit",4))
+ expect_mismatch_state = STATE_CRITICAL;
+ else
+ usage4 (_("Mismatch must be one of ok, warn, crit"));
break;
case 'd':
if (is_intpos (optarg))
delay = atoi (optarg);
else
- usage ("Delay must be a positive integer\n");
+ usage4 (_("Delay must be a positive integer"));
break;
+ case 'D': /* Check SSL cert validity - days 'til certificate expiration */
+#ifdef HAVE_SSL
+ if (!is_intnonneg (optarg))
+ usage2 (_("Invalid certificate expiration period"), optarg);
+ days_till_exp = atoi (optarg);
+ check_cert = TRUE;
+ flags |= FLAG_SSL;
+ break;
+#endif
+ /* fallthrough if we don't have ssl */
case 'S':
-#ifndef HAVE_SSL
- terminate (STATE_UNKNOWN,
- "SSL support not available. Install OpenSSL and recompile.");
+#ifdef HAVE_SSL
+ flags |= FLAG_SSL;
+#else
+ die (STATE_UNKNOWN, _("Invalid option - SSL is not available"));
#endif
- use_ssl = TRUE;
break;
}
}
if (server_address == NULL)
- usage ("You must provide a server address\n");
-
- return OK;
-}
-
-
-
-
-
-void
-print_usage (void)
-{
- printf
- ("Usage: %s -H host -p port [-w warn_time] [-c crit_time] [-s send]\n"
- " [-e expect] [-W wait] [-t to_sec] [-v]\n", PROGNAME);
-}
-
-
+ usage4 (_("You must provide a server address"));
-
-
-void
-print_help (void)
-{
- print_revision (PROGNAME, "$Revision$");
- printf
- ("Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)\n\n"
- "This plugin tests %s connections with the specified host.\n\n",
- SERVICE);
- print_usage ();
- printf
- ("Options:\n"
- " -H, --hostname=ADDRESS\n"
- " Host name argument for servers using host headers (use numeric\n"
- " address if possible to bypass DNS lookup).\n"
- " -p, --port=INTEGER\n"
- " Port number\n"
- " -s, --send=STRING\n"
- " String to send to the server\n"
- " -e, --expect=STRING\n"
- " String to expect in server response"
- " -W, --wait=INTEGER\n"
- " Seconds to wait between sending string and polling for response\n"
- " -w, --warning=DOUBLE\n"
- " Response time to result in warning status (seconds)\n"
- " -c, --critical=DOUBLE\n"
- " Response time to result in critical status (seconds)\n"
- " -t, --timeout=INTEGER\n"
- " Seconds before connection times out (default: %d)\n"
- " -v"
- " Show details for command-line debugging (do not use with nagios server)\n"
- " -h, --help\n"
- " Print detailed help screen\n"
- " -V, --version\n"
- " Print version information\n", DEFAULT_SOCKET_TIMEOUT);
+ return TRUE;
}
+/* SSL-specific functions */
#ifdef HAVE_SSL
-int
+static int
connect_SSL (void)
{
SSL_METHOD *meth;
/* Initialize SSL context */
SSLeay_add_ssl_algorithms ();
- meth = SSLv2_client_method ();
+ meth = SSLv23_client_method ();
SSL_load_error_strings ();
+ OpenSSL_add_all_algorithms();
if ((ctx = SSL_CTX_new (meth)) == NULL)
{
- printf ("ERROR: Cannot create SSL context.\n");
+ printf (_("CRITICAL - Cannot create SSL context.\n"));
return STATE_CRITICAL;
}
time (&start_time);
/* Make TCP connection */
- if (my_tcp_connect (server_address, server_port, &sd) == STATE_OK)
+ if (my_tcp_connect (server_address, server_port, &sd) == STATE_OK && was_refused == FALSE)
{
/* Do the SSL handshake */
if ((ssl = SSL_new (ctx)) != NULL)
{
SSL_set_fd (ssl, sd);
- if (SSL_connect (ssl) != -1)
+ if (SSL_connect(ssl) == 1)
return OK;
- ERR_print_errors_fp (stderr);
+ /* ERR_print_errors_fp (stderr); */
+ printf (_("CRITICAL - Cannot make SSL connection "));
+ ERR_print_errors_fp (stdout);
+ /* printf("\n"); */
}
else
{
- printf ("ERROR: Cannot initiate SSL handshake.\n");
+ printf (_("CRITICAL - Cannot initiate SSL handshake.\n"));
}
SSL_free (ssl);
}
return STATE_CRITICAL;
}
+
+static int
+check_certificate (X509 ** certificate)
+{
+ ASN1_STRING *tm;
+ int offset;
+ struct tm stamp;
+ int days_left;
+
+
+ /* Retrieve timestamp of certificate */
+ tm = X509_get_notAfter (*certificate);
+
+ /* Generate tm structure to process timestamp */
+ if (tm->type == V_ASN1_UTCTIME) {
+ if (tm->length < 10) {
+ printf (_("CRITICAL - Wrong time format in certificate.\n"));
+ return STATE_CRITICAL;
+ }
+ else {
+ stamp.tm_year = (tm->data[0] - '0') * 10 + (tm->data[1] - '0');
+ if (stamp.tm_year < 50)
+ stamp.tm_year += 100;
+ offset = 0;
+ }
+ }
+ else {
+ if (tm->length < 12) {
+ printf (_("CRITICAL - Wrong time format in certificate.\n"));
+ return STATE_CRITICAL;
+ }
+ else {
+ stamp.tm_year =
+ (tm->data[0] - '0') * 1000 + (tm->data[1] - '0') * 100 +
+ (tm->data[2] - '0') * 10 + (tm->data[3] - '0');
+ stamp.tm_year -= 1900;
+ offset = 2;
+ }
+ }
+ stamp.tm_mon =
+ (tm->data[2 + offset] - '0') * 10 + (tm->data[3 + offset] - '0') - 1;
+ stamp.tm_mday =
+ (tm->data[4 + offset] - '0') * 10 + (tm->data[5 + offset] - '0');
+ stamp.tm_hour =
+ (tm->data[6 + offset] - '0') * 10 + (tm->data[7 + offset] - '0');
+ stamp.tm_min =
+ (tm->data[8 + offset] - '0') * 10 + (tm->data[9 + offset] - '0');
+ stamp.tm_sec = 0;
+ stamp.tm_isdst = -1;
+
+ days_left = (mktime (&stamp) - time (NULL)) / 86400;
+ snprintf
+ (timestamp, 16, "%02d/%02d/%04d %02d:%02d",
+ stamp.tm_mon + 1,
+ stamp.tm_mday, stamp.tm_year + 1900, stamp.tm_hour, stamp.tm_min);
+
+ if (days_left > 0 && days_left <= days_till_exp) {
+ printf (_("Certificate expires in %d day(s) (%s).\n"), days_left, timestamp);
+ return STATE_WARNING;
+ }
+ if (days_left < 0) {
+ printf (_("Certificate expired on %s.\n"), timestamp);
+ return STATE_CRITICAL;
+ }
+
+ if (days_left == 0) {
+ printf (_("Certificate expires today (%s).\n"), timestamp);
+ return STATE_WARNING;
+ }
+
+ printf (_("Certificate will expire on %s.\n"), timestamp);
+
+ return STATE_OK;
+}
+#endif /* HAVE_SSL */
+
+
+void
+print_help (void)
+{
+ print_revision (progname, revision);
+
+ printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
+ printf (COPYRIGHT, copyright, email);
+
+ printf (_("This plugin tests %s connections with the specified host.\n\n"),
+ SERVICE);
+
+ print_usage ();
+
+ printf (_(UT_HELP_VRSN));
+
+ printf (_(UT_HOST_PORT), 'p', "none");
+
+ printf (_(UT_IPv46));
+
+ printf (_("\
+ -s, --send=STRING\n\
+ String to send to the server\n\
+ -e, --expect=STRING\n\
+ String to expect in server response\n\
+ -q, --quit=STRING\n\
+ String to send server to initiate a clean close of the connection\n"));
+
+ printf (_("\
+ -r, --refuse=ok|warn|crit\n\
+ Accept tcp refusals with states ok, warn, crit (default: crit)\n\
+ -M, --mismatch=ok|warn|crit\n\
+ Accept expected string mismatches with states ok, warn, crit (default: warn)\n\
+ -j, --jail\n\
+ Hide output from TCP socket\n\
+ -m, --maxbytes=INTEGER\n\
+ Close connection once more than this number of bytes are received\n\
+ -d, --delay=INTEGER\n\
+ Seconds to wait between sending string and polling for response\n"));
+
+#ifdef HAVE_SSL
+ printf (_("\
+ -D, --certificate=INTEGER\n\
+ Minimum number of days a certificate has to be valid.\n\
+ -S, --ssl\n\
+ Use SSL for the connection.\n"));
#endif
+ printf (_(UT_WARN_CRIT));
+
+ printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
+
+ printf (_(UT_VERBOSE));
+
+ printf (_(UT_SUPPORT));
+}
+
+
+void
+print_usage (void)
+{
+ printf ("\
+Usage: %s -H host -p port [-w <warning time>] [-c <critical time>]\n\
+ [-s <send string>] [-e <expect string>] [-q <quit string>]\n\
+ [-m <maximum bytes>] [-d <delay>] [-t <timeout seconds>]\n\
+ [-r <refuse state>] [-M <mismatch state>] [-v] [-4|-6] [-j]\n\
+ [-D <days to cert expiry>] [-S <use SSL>]\n", progname);
+}
+