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1041571 & 664615: check_tcp with cert check + nntps, simap, jabber

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git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@959 f882894a-f735-0410-b71e-b25c423dba1c
This commit is contained in:
Stanley Hopcroft 2004-12-01 08:26:59 +00:00
parent 8c81cf5bd0
commit 68ecdb7005
1 changed files with 157 additions and 12 deletions
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169
plugins/check_tcp.c
View file

@ -45,9 +45,14 @@ const char *email = "nagiosplug-devel@lists.sourceforge.net";
#endif
#ifdef HAVE_SSL
int check_cert = FALSE;
int days_till_exp;
char *randbuff = "";
SSL_CTX *ctx;
SSL *ssl;
X509 *server_cert;
int connect_SSL (void);
int check_certificate (X509 **);
#endif
enum {
@ -68,6 +73,7 @@ char *QUIT = NULL;
int PROTOCOL = 0;
int PORT = 0;
char timestamp[17] = "";
int server_port = 0;
char *server_address = NULL;
char *server_send = NULL;
@ -184,6 +190,31 @@ main (int argc, char **argv)
use_ssl=TRUE;
PORT=995;
}
else if (strstr(argv[0],"check_jabber")) {
progname = strdup("check_jabber");
SERVICE = strdup("JABBER");
SEND = strdup("<stream:stream to=\'host\' xmlns=\'jabber:client\' xmlns:stream=\'http://etherx.jabber.org/streams\'>\n");
EXPECT = strdup("<?xml version=\'1.0\'?><stream:stream xmlns:stream=\'http://etherx.jabber.org/streams\'");
QUIT = strdup("</stream:stream>\n");
PROTOCOL=TCP_PROTOCOL;
use_ssl=TRUE;
PORT = 5222;
}
else if (strstr (argv[0], "check_nntps")) {
progname = strdup("check_nntps");
SERVICE = strdup("NNTPS");
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");
QUIT = strdup("QUIT\r\n");
PROTOCOL = TCP_PROTOCOL;
use_ssl=TRUE;
PORT = 563;
}
#endif
else if (strstr (argv[0], "check_nntp")) {
progname = strdup ("check_nntp");
@ -227,7 +258,24 @@ main (int argc, char **argv)
/* try to connect to the host at the given port number */
gettimeofday (&tv, NULL);
#ifdef HAVE_SSL
if (use_ssl)
if (use_ssl && check_cert == TRUE) {
if (connect_SSL () != OK)
die (STATE_CRITICAL,"TCP 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("ERROR: Cannot retrieve server certificate.\n");
result = STATE_CRITICAL;
}
SSL_shutdown (ssl);
SSL_free (ssl);
SSL_CTX_free (ctx);
close (sd);
return result;
}
else if (use_ssl)
result = connect_SSL ();
else
#endif
@ -373,6 +421,10 @@ process_arguments (int argc, char **argv)
{"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}
};
@ -429,7 +481,7 @@ process_arguments (int argc, char **argv)
break;
case 'H': /* hostname */
if (is_host (optarg) == FALSE)
usage2 (_("Invalid host name/address"), optarg);
usage2 (_("invalid host name or address"), optarg);
server_address = optarg;
break;
case 'c': /* critical */
@ -459,7 +511,7 @@ process_arguments (int argc, char **argv)
break;
case 't': /* timeout */
if (!is_intpos (optarg))
usage2 (_("Timeout interval must be a positive integer"), optarg);
usage (_("Timeout interval must be a positive integer\n"));
else
socket_timeout = atoi (optarg);
break;
@ -504,13 +556,20 @@ process_arguments (int argc, char **argv)
else
usage (_("Delay must be a positive integer\n"));
break;
case 'S':
#ifndef HAVE_SSL
die (STATE_UNKNOWN,
_("SSL support not available. Install OpenSSL and recompile."));
#endif
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;
use_ssl = TRUE;
break;
case 'S':
use_ssl = TRUE;
#else
die (STATE_UNKNOWN, "SSL support not available. Install OpenSSL and recompile.");
#endif
break;
}
}
@ -556,7 +615,10 @@ connect_SSL (void)
SSL_set_fd (ssl, sd);
if (SSL_connect(ssl) == 1)
return OK;
ERR_print_errors_fp (stderr);
/* ERR_print_errors_fp (stderr); */
printf (_("ERROR: Cannot make SSL connection "));
ERR_print_errors_fp (stdout);
/* printf("\n"); */
}
else
{
@ -572,8 +634,82 @@ connect_SSL (void)
}
#endif
#ifdef HAVE_SSL
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 ("ERROR: 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 ("ERROR: 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
int
my_recv (void)
{
@ -603,8 +739,8 @@ print_help (void)
{
print_revision (progname, revision);
printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
printf (COPYRIGHT, copyright, email);
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);
@ -635,6 +771,14 @@ print_help (void)
-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);
@ -654,7 +798,8 @@ print_usage (void)
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>] [-v] [-4|-6] [-j]\n"), progname);
[-r <refuse state>] [-v] [-4|-6] [-j] [-D <days to cert expiry>]\n\
[-S <use SSL>]\n"), progname);
printf (" %s (-h|--help)\n", progname);
printf (" %s (-V|--version)\n", progname);
}