83 lines
2.8 KiB
Bash
Executable File
83 lines
2.8 KiB
Bash
Executable File
#!/bin/sh
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STATE=0
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MAIN_CONNECTION_PINGABLE_IP="31.170.8.95"
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MAIN_CONNECTION_GATEWAY="IP"
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MAIN_CONNECTION_IP="IP"
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SECOND_CONNECTION_PINGABLE_IP="31.170.8.243"
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INFO_MAIN_CONNECTION="IP - Description - interface"
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INFO_SECOND_CONNECTION="IP - Description - interface"
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CURRENT_GATEWAY=$(/usr/bin/netstat -nr | /usr/bin/grep "default" | /usr/bin/awk '{print $2}')
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IS_GATEWAY_IN_FILE=1 # Check whether /etc/mygate has the IP of main connection
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IS_VPN_USING_MAIN_CONNECTION=1 # Check whether ipsecctl use the main connection
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IS_PF_USING_MAIN_CONNECTION=1 # Check whether PacketFilter has route-to using the main connection
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IS_MISCELLANEOUS=1 # Check miscellaneous things
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CHECK_CARP=0 # No check if host is backup
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# No check if host is backup
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if [ "${CHECK_CARP}" = 1 ]; then
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CARP_STATUS=$(/sbin/ifconfig carp0 | /usr/bin/grep "status" | /usr/bin/awk '{print $2}')
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if [ "$CARP_STATUS" = "backup" ]; then
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echo "No check, I'm a backup"
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exit 0
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fi
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fi
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# If main connection is UP but not used => critical and continue
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# If main connection is DOWN (used or not) => warning and exit
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if /sbin/ping -c1 -w1 ${MAIN_CONNECTION_PINGABLE_IP} >/dev/null 2>&1; then
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if [ "${CURRENT_GATEWAY}" != "${MAIN_CONNECTION_GATEWAY}" ]; then
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echo "Main connection is UP (${INFO_MAIN_CONNECTION}) but not used as gateway !"
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STATE=2
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fi
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else
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echo "Main connection (${INFO_MAIN_CONNECTION}) is down"
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STATE=1
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IS_GATEWAY_IN_FILE=0
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IS_VPN_USING_MAIN_CONNECTION=0
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IS_PF_USING_MAIN_CONNECTION=0
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IS_MISCELLANEOUS=0
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fi
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# If second connection is DOWN => critical and continue
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if ! /sbin/ping -c1 -w1 ${SECOND_CONNECTION_PINGABLE_IP} >/dev/null 2>&1; then
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echo "Second connection (${INFO_SECOND_CONNECTION}) is down"
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STATE=2
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fi
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# Check whether /etc/mygate has the IP of main connection
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if [ "${IS_GATEWAY_IN_FILE}" = 1 ]; then
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if ! /usr/bin/grep -q "${MAIN_CONNECTION_GATEWAY}" /etc/mygate; then
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echo "Main connection is not set in /etc/mygate"
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STATE=2
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fi
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fi
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# Check whether ipsecctl use the main connection
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if [ "${IS_VPN_USING_MAIN_CONNECTION}" = 1 ]; then
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if ! /sbin/ipsecctl -sa | /usr/bin/grep -q "${MAIN_CONNECTION_IP}"; then
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echo "VPN is not using the main connection !"
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STATE=2
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fi
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fi
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# Check whether PacketFilter has route-to using the main connection
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if [ "${IS_PF_USING_MAIN_CONNECTION}" = 1 ]; then
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if ! /sbin/pfctl -sr | /usr/bin/grep "route-to" | /usr/bin/grep -q "${MAIN_CONNECTION_GATEWAY}"; then
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echo "PF is not using the main connection !"
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STATE=2
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fi
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fi
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# Check miscellaneous things
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if [ "${IS_MISCELLANEOUS}" = 1 ]; then
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echo
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fi
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if [ "${STATE}" = 0 ]; then
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echo "OK - Main connection is UP and used (${INFO_MAIN_CONNECTION}), second connection is UP (${INFO_SECOND_CONNECTION})"
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fi
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exit ${STATE}
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