![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/plugins/check_tcp.c b/plugins/check_tcp.c
index 3ffa4cd62019edaa43f81303e0e52858429a1373..178bd5688dec52abeeb72667b595ba7c65709ab5 100644 (file)
--- a/plugins/check_tcp.c
+++ b/plugins/check_tcp.c
/*****************************************************************************
-
- 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.
-
- $Id$
-
+*
+* Nagios check_tcp plugin
+*
+* License: GPL
+* Copyright (c) 1999-2008 Nagios Plugins Development Team
+*
+* Description:
+*
+* This file contains the check_tcp 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 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, see <http://www.gnu.org/licenses/>.
+*
+* $Id$
+*
*****************************************************************************/
/* progname "check_tcp" changes depending on symlink called */
char *progname;
-const char *revision = "$Revision$";
-const char *copyright = "1999-2004";
+const char *copyright = "1999-2008";
const char *email = "nagiosplug-devel@lists.sourceforge.net";
#include "common.h"
#include "netutils.h"
#include "utils.h"
+#include "utils_tcp.h"
#ifdef HAVE_SSL
static int check_cert = FALSE;
static int days_till_exp;
-static char *randbuff = "";
-static X509 *server_cert;
-# ifdef USE_OPENSSL
-static int check_certificate (X509 **);
-# endif /* USE_OPENSSL */
# define my_recv(buf, len) ((flags & FLAG_SSL) ? np_net_ssl_read(buf, len) : read(sd, buf, len))
# define my_send(buf, len) ((flags & FLAG_SSL) ? np_net_ssl_write(buf, len) : send(sd, buf, len, 0))
#else
# define my_send(buf, len) send(sd, buf, len, 0)
#endif
-
/* int my_recv(char *, size_t); */
static int process_arguments (int, char **);
void print_help (void);
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;
#define FLAG_TIME_WARN 0x08
#define FLAG_TIME_CRIT 0x10
#define FLAG_HIDE_OUTPUT 0x20
+#define FLAG_MATCH_ALL 0x40
static size_t flags = FLAG_EXACT_MATCH;
int
int i;
char *status = NULL;
struct timeval tv;
- size_t len, match = -1;
+ size_t len;
+ int match = -1;
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
len = strlen(progname);
if(len > 6 && !memcmp(progname, "check_", 6)) {
- SERVICE = progname + 6;
+ SERVICE = strdup(progname + 6);
for(i = 0; i < len - 6; i++)
SERVICE[i] = toupper(SERVICE[i]);
}
}
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\'";
+ EXPECT = "<?xml version=\'1.0\'?><stream:stream xmlns=\'jabber:client\' xmlns:stream=\'http://etherx.jabber.org/streams\'";
QUIT = "</stream:stream>\n";
- flags |= FLAG_SSL | FLAG_HIDE_OUTPUT;
+ flags |= FLAG_HIDE_OUTPUT;
PORT = 5222;
}
else if (!strncmp (SERVICE, "NNTPS", 5)) {
QUIT = "QUIT\r\n";
PORT = 119;
}
+ else if (!strncmp(SERVICE, "CLAMD", 5)) {
+ SEND = "PING";
+ EXPECT = "PONG";
+ QUIT = NULL;
+ PORT = 3310;
+ }
/* 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"));
server_quit = QUIT;
status = NULL;
+ /* Parse extra opts if any */
+ argv=np_extra_opts (&argc, argv, progname);
+
if (process_arguments (argc, argv) == ERROR)
usage4 (_("Could not parse arguments"));
if(flags & FLAG_VERBOSE) {
printf("Using service %s\n", SERVICE);
- printf("Port: %d\n", PORT);
- printf("flags: 0x%x\n", flags);
+ printf("Port: %d\n", server_port);
+ printf("flags: 0x%x\n", (int)flags);
}
if(EXPECT && !server_expect_count)
server_expect_count++;
+ if(PROTOCOL==IPPROTO_UDP && !(server_expect_count && server_send)){
+ usage(_("With UDP checks, a send/expect string must be specified."));
+ }
+
/* set up the timer */
signal (SIGALRM, socket_timeout_alarm_handler);
alarm (socket_timeout);
#ifdef HAVE_SSL
if (flags & FLAG_SSL){
result = np_net_ssl_init(sd);
- if(result != STATE_OK) return result;
- /* XXX does np_net_ssl take care of printing an error?
- die (STATE_CRITICAL,_("CRITICAL - Could not make SSL connection\n"));
- */
- }
-# ifdef USE_OPENSSL /* XXX gnutls does cert checking differently */
- /*
- if (flags & FLAG_SSL && check_cert == TRUE) {
- 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;
+ if (result == STATE_OK && check_cert == TRUE) {
+ result = np_net_ssl_check_cert(days_till_exp);
+ if(result != STATE_OK) {
+ printf(_("CRITICAL - Cannot retrieve server certificate.\n"));
+ }
}
}
- */
-# endif /* USE_OPENSSL */
-#endif
-
if(result != STATE_OK){
-#ifdef HAVE_SSL
np_net_ssl_cleanup();
-#endif
if(sd) close(sd);
return result;
}
+#endif /* HAVE_SSL */
if (server_send != NULL) { /* Something to send? */
my_send(server_send, strlen(server_send));
}
if(flags & FLAG_VERBOSE) {
- printf("server_expect_count: %d\n", server_expect_count);
+ if (server_send) {
+ printf("Send string: %s\n", server_send);
+ }
+ if (server_quit) {
+ printf("Quit string: %s\n", server_quit);
+ }
+ printf("server_expect_count: %d\n", (int)server_expect_count);
for(i = 0; i < server_expect_count; i++)
printf("\t%d: %s\n", i, server_expect[i]);
}
/* 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);
+ (int)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;
- }
- }
+ match = np_expect_match(status,
+ server_expect,
+ server_expect_count,
+ (flags & FLAG_MATCH_ALL ? TRUE : FALSE),
+ (flags & FLAG_EXACT_MATCH ? TRUE : FALSE),
+ (flags & FLAG_VERBOSE ? TRUE : FALSE));
}
if (server_quit != NULL) {
}
#ifdef HAVE_SSL
np_net_ssl_cleanup();
-#endif
+#endif
if (sd) close (sd);
microsec = deltime (tv);
result = STATE_WARNING;
/* did we get the response we hoped? */
- if(match == -2 && result != STATE_CRITICAL)
- result = STATE_WARNING;
+ if(match == FALSE && result != STATE_CRITICAL)
+ result = expect_mismatch_state;
/* reset the alarm */
alarm (0);
/* 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(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("%s %s - ", SERVICE, state_text(result));
+
+ if(match == FALSE && len && !(flags & FLAG_HIDE_OUTPUT))
+ printf("Unexpected response from host/socket: %s", status);
+ else {
+ if(match == FALSE)
+ printf("Unexpected response from host/socket on ");
+ else
+ printf("%.3f second response time on ", elapsed_time);
+ if(server_address[0] != '/')
+ printf("port %d", server_port);
+ else
+ printf("socket %s", server_address);
+ }
- if (match != -2 && !(flags & FLAG_HIDE_OUTPUT) && len)
+ if (match != FALSE && !(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);
+ * so print all zeroes on warn and crit. Use fperfdata since
+ * localisation settings can make different outputs */
+ if(match == FALSE)
+ printf ("|%s",
+ fperfdata ("time", elapsed_time, "s",
+ (flags & FLAG_TIME_WARN ? TRUE : FALSE), 0,
+ (flags & FLAG_TIME_CRIT ? TRUE : FALSE), 0,
+ TRUE, 0,
+ TRUE, socket_timeout)
+ );
else
printf("|%s",
fperfdata ("time", elapsed_time, "s",
- TRUE, warning_time,
- TRUE, critical_time,
- TRUE, 0,
- TRUE, socket_timeout)
- );
+ (flags & FLAG_TIME_WARN ? TRUE : FALSE), warning_time,
+ (flags & FLAG_TIME_CRIT ? TRUE : FALSE), critical_time,
+ TRUE, 0,
+ TRUE, socket_timeout)
+ );
putchar('\n');
return result;
process_arguments (int argc, char **argv)
{
int c;
+ int escape = 0;
int option = 0;
static struct option longopts[] = {
{"hostname", required_argument, 0, 'H'},
- {"critical-time", required_argument, 0, 'c'},
- {"warning-time", required_argument, 0, 'w'},
+ {"critical", required_argument, 0, 'c'},
+ {"warning", required_argument, 0, 'w'},
{"critical-codes", required_argument, 0, 'C'},
{"warning-codes", required_argument, 0, 'W'},
{"timeout", required_argument, 0, 't'},
- {"protocol", required_argument, 0, 'P'},
+ {"protocol", required_argument, 0, 'P'}, /* FIXME: Unhandled */
{"port", required_argument, 0, 'p'},
+ {"escape", no_argument, 0, 'E'},
+ {"all", no_argument, 0, 'A'},
{"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'},
+ {"jail", no_argument, 0, 'j'},
{"delay", required_argument, 0, 'd'},
{"refuse", required_argument, 0, 'r'},
{"mismatch", required_argument, 0, 'M'},
{"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}
};
}
while (1) {
- c = getopt_long (argc, argv, "+hVv46H:s:e:q:m:c:w:t:p:C:W:d:Sr:jD:M:",
+ c = getopt_long (argc, argv, "+hVv46EAH:s:e:q:m:c:w:t:p:C:W:d:Sr:jD:M:",
longopts, &option);
if (c == -1 || c == EOF || c == 1)
switch (c) {
case '?': /* print short usage statement if args not parsable */
- usage2 (_("Unknown argument"), optarg);
+ usage5 ();
case 'h': /* help */
print_help ();
exit (STATE_OK);
case 'V': /* version */
- print_revision (progname, revision);
+ print_revision (progname, NP_VERSION);
exit (STATE_OK);
case 'v': /* verbose mode */
flags |= FLAG_VERBOSE;
#endif
break;
case 'H': /* hostname */
- if (is_host (optarg) == FALSE)
- usage2 (_("Invalid hostname/address"), optarg);
server_address = optarg;
break;
case 'c': /* critical */
- if (!is_intnonneg (optarg))
- usage4 (_("Critical threshold must be a positive integer"));
- else
- critical_time = strtod (optarg, NULL);
+ 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))
- usage4 (_("Warning threshold must be a positive integer"));
- else
- warning_time = strtod (optarg, NULL);
+ warning_time = strtod (optarg, NULL);
flags |= FLAG_TIME_WARN;
break;
case 'C':
else
server_port = atoi (optarg);
break;
+ case 'E':
+ escape = 1;
+ break;
case 's':
- server_send = optarg;
+ if (escape)
+ server_send = np_escaped_string(optarg);
+ else
+ asprintf(&server_send, "%s", optarg);
break;
case 'e': /* expect string (may be repeated) */
- EXPECT = NULL;
flags &= ~FLAG_EXACT_MATCH;
if (server_expect_count == 0)
server_expect = malloc (sizeof (char *) * (++server_expect_count));
usage4 (_("Maxbytes must be a positive integer"));
else
maxbytes = strtol (optarg, NULL, 0);
+ break;
case 'q':
- asprintf(&server_quit, "%s\r\n", optarg);
+ if (escape)
+ server_quit = np_escaped_string(optarg);
+ else
+ asprintf(&server_quit, "%s\r\n", optarg);
break;
case 'r':
if (!strncmp(optarg,"ok",2))
die (STATE_UNKNOWN, _("Invalid option - SSL is not available"));
#endif
break;
+ case 'A':
+ flags |= FLAG_MATCH_ALL;
+ break;
}
}
if (server_address == NULL)
usage4 (_("You must provide a server address"));
+ else if (server_address[0] != '/' && is_host (server_address) == FALSE)
+ die (STATE_CRITICAL, "%s %s - %s: %s\n", SERVICE, state_text(STATE_CRITICAL), _("Invalid hostname, address or socket"), server_address);
return TRUE;
}
-/* SSL-specific functions */
-#ifdef HAVE_SSL
-# ifdef USE_OPENSSL /* XXX */
-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 /* USE_OPENSSL */
-#endif /* HAVE_SSL */
-
-
void
print_help (void)
{
- print_revision (progname, revision);
+ print_revision (progname, NP_VERSION);
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"),
+ printf (_("This plugin tests %s connections with the specified host (or unix socket).\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"));
+ printf (UT_HELP_VRSN);
+ printf (UT_EXTRA_OPTS);
+
+ printf (UT_HOST_PORT, 'p', "none");
+
+ printf (UT_IPv46);
+
+ printf (" %s\n", "-E, --escape");
+ printf (" %s\n", _("Can use \\n, \\r, \\t or \\ in send or quit string. Must come before send or quit option"));
+ printf (" %s\n", _("Default: nothing added to send, \\r\\n added to end of quit"));
+ printf (" %s\n", "-s, --send=STRING");
+ printf (" %s\n", _("String to send to the server"));
+ printf (" %s\n", "-e, --expect=STRING");
+ printf (" %s %s\n", _("String to expect in server response"), _("(may be repeated)"));
+ printf (" %s\n", "-A, --all");
+ printf (" %s\n", _("All expect strings need to occur in server response. Default is any"));
+ printf (" %s\n", "-q, --quit=STRING");
+ printf (" %s\n", _("String to send server to initiate a clean close of the connection"));
+ printf (" %s\n", "-r, --refuse=ok|warn|crit");
+ printf (" %s\n", _("Accept TCP refusals with states ok, warn, crit (default: crit)"));
+ printf (" %s\n", "-M, --mismatch=ok|warn|crit");
+ printf (" %s\n", _("Accept expected string mismatches with states ok, warn, crit (default: warn)"));
+ printf (" %s\n", "-j, --jail");
+ printf (" %s\n", _("Hide output from TCP socket"));
+ printf (" %s\n", "-m, --maxbytes=INTEGER");
+ printf (" %s\n", _("Close connection once more than this number of bytes are received"));
+ printf (" %s\n", "-d, --delay=INTEGER");
+ printf (" %s\n", _("Seconds to wait between sending string and polling for response"));
#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"));
+ printf (" %s\n", "-D, --certificate=INTEGER");
+ printf (" %s\n", _("Minimum number of days a certificate has to be valid."));
+ printf (" %s\n", "-S, --ssl");
+ printf (" %s\n", _("Use SSL for the connection."));
#endif
- printf (_(UT_WARN_CRIT));
+ printf (UT_WARN_CRIT);
- printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
+ printf (UT_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
- printf (_(UT_VERBOSE));
+ printf (UT_VERBOSE);
- printf (_(UT_SUPPORT));
+ 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);
+ printf ("%s\n", _("Usage:"));
+ printf ("%s -H host -p port [-w <warning time>] [-c <critical time>] [-s <send string>]\n",progname);
+ printf ("[-e <expect string>] [-q <quit string>][-m <maximum bytes>] [-d <delay>]\n");
+ printf ("[-t <timeout seconds>] [-r <refuse state>] [-M <mismatch state>] [-v] [-4|-6] [-j]\n");
+ printf ("[-D <days to cert expiry>] [-S <use SSL>] [-E]\n");
}