Imported Upstream version 1.4.16_pre1
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047baae1ca
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69 changed files with 10803 additions and 2698 deletions
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@ -3,7 +3,7 @@
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* Nagios plugins SSL utilities
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*
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* License: GPL
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* Copyright (c) 2005-2007 Nagios Plugins Development Team
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* Copyright (c) 2005-2010 Nagios Plugins Development Team
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*
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* Description:
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*
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@ -26,6 +26,7 @@
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*
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*****************************************************************************/
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#define MAX_CN_LENGTH 256
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#define LOCAL_TIMEOUT_ALARM_HANDLER
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#include "common.h"
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#include "netutils.h"
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@ -35,68 +36,104 @@ static SSL_CTX *c=NULL;
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static SSL *s=NULL;
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static int initialized=0;
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int np_net_ssl_init (int sd) {
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return np_net_ssl_init_with_hostname(sd, NULL);
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int np_net_ssl_init(int sd) {
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return np_net_ssl_init_with_hostname(sd, NULL);
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}
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int np_net_ssl_init_with_hostname (int sd, char *host_name) {
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if (!initialized) {
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/* Initialize SSL context */
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SSLeay_add_ssl_algorithms ();
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SSL_load_error_strings ();
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OpenSSL_add_all_algorithms ();
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initialized = 1;
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}
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if ((c = SSL_CTX_new (SSLv23_client_method ())) == NULL) {
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printf ("%s\n", _("CRITICAL - Cannot create SSL context."));
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return STATE_CRITICAL;
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}
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if ((s = SSL_new (c)) != NULL){
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#ifdef SSL_set_tlsext_host_name
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if (host_name != NULL)
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SSL_set_tlsext_host_name(s, host_name);
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#endif
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SSL_set_fd (s, sd);
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if (SSL_connect(s) == 1){
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return OK;
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} else {
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printf ("%s\n", _("CRITICAL - Cannot make SSL connection "));
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# ifdef USE_OPENSSL /* XXX look into ERR_error_string */
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ERR_print_errors_fp (stdout);
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# endif /* USE_OPENSSL */
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}
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} else {
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printf ("%s\n", _("CRITICAL - Cannot initiate SSL handshake."));
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}
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int np_net_ssl_init_with_hostname(int sd, char *host_name) {
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return np_net_ssl_init_with_hostname_and_version(sd, host_name, 0);
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}
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int np_net_ssl_init_with_hostname_and_version(int sd, char *host_name, int version) {
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const SSL_METHOD *method = NULL;
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switch (version) {
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case 0: /* Deafult to auto negotiation */
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method = SSLv23_client_method();
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break;
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case 1: /* TLSv1 protocol */
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method = TLSv1_client_method();
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break;
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case 2: /* SSLv2 protocol */
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#if defined(USE_GNUTLS) || defined(OPENSSL_NO_SSL2)
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printf(("%s\n", _("CRITICAL - SSL protocol version 2 is not supported by your SSL library.")));
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return STATE_CRITICAL;
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}
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void np_net_ssl_cleanup (){
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if(s){
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#ifdef SSL_set_tlsext_host_name
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SSL_set_tlsext_host_name(s, NULL);
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#else
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method = SSLv2_client_method();
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#endif
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SSL_shutdown (s);
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SSL_free (s);
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if(c) {
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SSL_CTX_free (c);
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c=NULL;
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}
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s=NULL;
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break;
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case 3: /* SSLv3 protocol */
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method = SSLv3_client_method();
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break;
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default: /* Unsupported */
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printf("%s\n", _("CRITICAL - Unsupported SSL protocol version."));
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return STATE_CRITICAL;
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}
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if (!initialized) {
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/* Initialize SSL context */
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SSLeay_add_ssl_algorithms();
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SSL_load_error_strings();
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OpenSSL_add_all_algorithms();
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initialized = 1;
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}
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if ((c = SSL_CTX_new(method)) == NULL) {
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printf("%s\n", _("CRITICAL - Cannot create SSL context."));
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return STATE_CRITICAL;
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}
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#ifdef SSL_OP_NO_TICKET
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SSL_CTX_set_options(c, SSL_OP_NO_TICKET);
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#endif
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if ((s = SSL_new(c)) != NULL) {
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#ifdef SSL_set_tlsext_host_name
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if (host_name != NULL)
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SSL_set_tlsext_host_name(s, host_name);
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#endif
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SSL_set_fd(s, sd);
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if (SSL_connect(s) == 1) {
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return OK;
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} else {
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printf("%s\n", _("CRITICAL - Cannot make SSL connection."));
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# ifdef USE_OPENSSL /* XXX look into ERR_error_string */
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ERR_print_errors_fp(stdout);
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# endif /* USE_OPENSSL */
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}
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} else {
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printf("%s\n", _("CRITICAL - Cannot initiate SSL handshake."));
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}
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return STATE_CRITICAL;
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}
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int np_net_ssl_write(const void *buf, int num){
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void np_net_ssl_cleanup() {
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if (s) {
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#ifdef SSL_set_tlsext_host_name
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SSL_set_tlsext_host_name(s, NULL);
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#endif
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SSL_shutdown(s);
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SSL_free(s);
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if (c) {
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SSL_CTX_free(c);
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c=NULL;
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}
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s=NULL;
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}
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}
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int np_net_ssl_write(const void *buf, int num) {
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return SSL_write(s, buf, num);
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}
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int np_net_ssl_read(void *buf, int num){
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int np_net_ssl_read(void *buf, int num) {
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return SSL_read(s, buf, num);
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}
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int np_net_ssl_check_cert(int days_till_exp){
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int np_net_ssl_check_cert(int days_till_exp) {
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# ifdef USE_OPENSSL
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X509 *certificate=NULL;
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X509_NAME *subj=NULL;
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char cn[MAX_CN_LENGTH]= "";
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int cnlen =-1;
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int status=STATE_UNKNOWN;
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ASN1_STRING *tm;
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int offset;
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struct tm stamp;
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@ -105,18 +142,29 @@ int np_net_ssl_check_cert(int days_till_exp){
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char timestamp[17] = "";
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certificate=SSL_get_peer_certificate(s);
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if(! certificate){
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printf ("%s\n",_("CRITICAL - Cannot retrieve server certificate."));
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if (!certificate) {
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printf("%s\n",_("CRITICAL - Cannot retrieve server certificate."));
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return STATE_CRITICAL;
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}
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/* Extract CN from certificate subject */
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subj=X509_get_subject_name(certificate);
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if (!subj) {
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printf("%s\n",_("CRITICAL - Cannot retrieve certificate subject."));
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return STATE_CRITICAL;
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}
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cnlen = X509_NAME_get_text_by_NID(subj, NID_commonName, cn, sizeof(cn));
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if (cnlen == -1)
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strcpy(cn, _("Unknown CN"));
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/* Retrieve timestamp of certificate */
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tm = X509_get_notAfter (certificate);
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tm = X509_get_notAfter(certificate);
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/* Generate tm structure to process timestamp */
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if (tm->type == V_ASN1_UTCTIME) {
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if (tm->length < 10) {
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printf ("%s\n", _("CRITICAL - Wrong time format in certificate."));
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printf("%s\n", _("CRITICAL - Wrong time format in certificate."));
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return STATE_CRITICAL;
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} else {
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stamp.tm_year = (tm->data[0] - '0') * 10 + (tm->data[1] - '0');
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@ -126,7 +174,7 @@ int np_net_ssl_check_cert(int days_till_exp){
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}
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} else {
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if (tm->length < 12) {
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printf ("%s\n", _("CRITICAL - Wrong time format in certificate."));
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printf("%s\n", _("CRITICAL - Wrong time format in certificate."));
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return STATE_CRITICAL;
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} else {
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stamp.tm_year =
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@ -155,21 +203,22 @@ int np_net_ssl_check_cert(int days_till_exp){
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stamp.tm_mday, stamp.tm_year + 1900, stamp.tm_hour, stamp.tm_min);
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if (days_left > 0 && days_left <= days_till_exp) {
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printf (_("WARNING - Certificate expires in %d day(s) (%s).\n"), days_left, timestamp);
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return STATE_WARNING;
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printf(_("WARNING - Certificate '%s' expires in %d day(s) (%s).\n"), cn, days_left, timestamp);
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status=STATE_WARNING;
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} else if (time_left < 0) {
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printf (_("CRITICAL - Certificate expired on %s.\n"), timestamp);
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return STATE_CRITICAL;
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printf(_("CRITICAL - Certificate '%s' expired on %s.\n"), cn, timestamp);
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status=STATE_CRITICAL;
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} else if (days_left == 0) {
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printf (_("WARNING - Certificate expires today (%s).\n"), timestamp);
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return STATE_WARNING;
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printf(_("WARNING - Certificate '%s' expires today (%s).\n"), cn, timestamp);
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status=STATE_WARNING;
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} else {
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printf(_("OK - Certificate '%s' will expire on %s.\n"), cn, timestamp);
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status=STATE_OK;
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}
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printf (_("OK - Certificate will expire on %s.\n"), timestamp);
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X509_free (certificate);
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return STATE_OK;
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X509_free(certificate);
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return status;
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# else /* ifndef USE_OPENSSL */
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printf ("%s\n", _("WARNING - Plugin does not support checking certificates."));
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printf("%s\n", _("WARNING - Plugin does not support checking certificates."));
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return STATE_WARNING;
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# endif /* USE_OPENSSL */
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}
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