From 46ef150932a4899f53c1b0a228e72a19929a7e71 Mon Sep 17 00:00:00 2001
From: "Moritz Rudert (helios)" <helios@planetcyborg.de>
Date: Tue, 7 Aug 2012 20:38:35 +0200
Subject: [PATCH] added build_master_ssh_tunnel

---
 build_master_ssh_tunnel | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100755 build_master_ssh_tunnel

diff --git a/build_master_ssh_tunnel b/build_master_ssh_tunnel
new file mode 100755
index 0000000..2db8416
--- /dev/null
+++ b/build_master_ssh_tunnel
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+STATE_OK=0
+STATE_WARNING=1
+STATE_CRITICAL=2
+STATE_UNKNOWN=3
+STATE_DEPENDENT=4
+
+HOSTNAME="$1"
+PORT="$2"
+CONFIG="/etc/icinga/ssh_config"
+SOCKET="/var/run/icinga/ssh@${HOSTNAME}:${PORT}.sock"
+KEY="/etc/icinga/nagios_sshkey"
+
+if [ $# -lt 2 ]; then
+    echo "usage: $(basename "$0") <host> <port>"
+    exit
+fi
+
+if [ -S "${SOCKET}" ]; then
+    echo "OK - Tunnel exists"
+    exit $STATE_OK
+elif [ ! -f "${KEY}" ]; then
+    echo "CRITICAL - keyfile missing: ${KEY}"
+    exit $STATE_CRITICAL
+elif [ ! -d "$(dirname "${SOCKET}")" ]; then
+    echo "CRITICAL - socket directory missing: $(dirname "${SOCKET}")"
+    exit $STATE_CRITICAL
+else
+    # start ssh with all file descriptors closed/nulled so that the check doesn't hang
+    /usr/bin/ssh -nNMf -p "${PORT}" -i "${KEY}" -F "${CONFIG}" "${HOSTNAME}" >/dev/null 2>&1 3>&- 4>&- 5>&- 6>&-
+    if [ $? -ne 0 ] ; then
+        echo "CRITICAL - Tunnel creation failed"
+        exit $STATE_CRITICAL
+    else
+        echo "OK - Tunnel established"
+        exit $STATE_OK
+    fi
+fi