recipe_gentoo/recipes/recipe_check_snmp_config.sh

echo "-------------------------------------------------"
echo -e "------------ ${BLUE}CHECK SNMP BASIC CONFIG${NC} ------------"
echo -e "-------------------------------------------------\n"

# This does NOT check if SNMP 'monitoring server' has configured this machine
# Check /etc/snmp/snmpd.conf config file agentAddress, rocommunity and trapsink/trap2sink parameters
echo -e "Check ${BLUE}SNMPD${NC} config file /etc/snmp/snmpd.conf"

# Check if agentAddress exist but different than expected (success if return code = 1)
grep "^[[:space:]]*agentAddress" /etc/snmp/snmpd.conf \
	|grep -E -q -v \
	-e "^[[:space:]]*agentAddress[[:space:]]*udp:127.0.0.1:161[[:space:]]*\$" \
	-e "^[[:space:]]*agentAddress[[:space:]]*udp:${IPV4_ADMIN_NETWORK}[0-2]?[0-9]?[0-9]?:161[[:space:]]*\$" \
	-e "^[[:space:]]*agentAddress[[:space:]]*udp6:\[::1\]:161[[:space:]]*\$" \
	-e "^[[:space:]]*agentAddress[[:space:]]*udp6:\[${IPV6_ADMIN_NETWORK}[0-9,a-f,\:]*\]:161[[:space:]]*\$"

# Return Code
RC=$?

# agentAddress other IP than expected
if [ $RC -eq 0 ]
then
	SNMP_CONFIG_CHECK_FAILED="${SNMP_CONFIG_CHECK_FAILED} SNMPD agentAddress allow connection from unexpected IP, expected :\n'agentAddress udp:IPv4AdminLANlistenAddress:161'\n'agentAddress udp6:[IPv6AdminLANlistenAddress]:161'\nOPTIONAL : 'agentAddress udp:127.0.0.1:161'\nOPTIONAL : 'agentAddress udp6:[::1]:161' ;\n"
	echo -e "${RED}SNMPD agentAddress allow connection from UNEXPECTED IP : check KO${NC}\n"
# Does not agentAddress unexpected IP
else
	# Check expected IP are configured (IPv4 and IPv6) (success if return code = 0)
	grep -E -q "^[[:space:]]*agentAddress[[:space:]]*udp:${IPV4_ADMIN_NETWORK}[0-2]?[0-9]?[0-9]?:161[[:space:]]*\$" /etc/snmp/snmpd.conf
	
	# Return Code
	RCa=$?
	
	grep -E -q "^[[:space:]]*agentAddress[[:space:]]*udp6:\[${IPV6_ADMIN_NETWORK}[0-9,a-f,\:]*\]:161[[:space:]]*\$" /etc/snmp/snmpd.conf
	
	# Return Code
	RCb=$?

	# Expected IP are NOT configured (IPv4 and IPv6)
	if [ $RCa -ne 0 ] || [ $RCb -ne 0 ]
	then
		SNMP_CONFIG_CHECK_FAILED="${SNMP_CONFIG_CHECK_FAILED} All SNMPD agentAddress expected IP (IPv4 and IPv6) are not well configured, expected :\n'agentAddress udp:IPv4AdminLANlistenAddress:161'\n'agentAddress udp6:[IPv6AdminLANlistenAddress]:161'\nOPTIONAL : 'agentAddress udp:127.0.0.1:161'\nOPTIONAL : 'agentAddress udp6:[::1]:161'\n"
		echo -e "${RED}All SNMPD agentAddress expected IP (IPv4 and IPv6) are NOT well CONFIGURED : check KO${NC}\n"
	# Expected IP are configured (IPv4 and IPv6)
	else
		echo -e "${GREEN}SNMPD agentAddress expected IP are CONFIGURED : check OK${NC}\n"
	fi
fi

# Check if rocommunity exist but different than expected (success if return code = 1)
grep "^[[:space:]]*rocommunity" /etc/snmp/snmpd.conf \
	|grep -q -v -e "^[[:space:]]*rocommunity[[:space:]]*public[[:space:]]*default[[:space:]]*\$"

# Return Code
RC=$?

# Unexpected rocommunity found
if [ $RC -eq 0 ]
then
	SNMP_CONFIG_CHECK_FAILED="${SNMP_CONFIG_CHECK_FAILED} Unexpected rocommunity found, expected : rocommunity public default ;\n"
	echo -e "${RED}UNEXPECTED rocommunity found : check KO${NC}\n"
# No unexpected rocommunity
else
	# Check if expected rocommunity configured (success if return code = 0)
	grep -q "^[[:space:]]*rocommunity[[:space:]]*public[[:space:]]*default[[:space:]]*\$" /etc/snmp/snmpd.conf
	
	# Return Code
	RC=$?

	# Expected rocommunity NOT configured
	if [ $RC -ne 0 ]
	then
		SNMP_CONFIG_CHECK_FAILED="${SNMP_CONFIG_CHECK_FAILED} Expected rocommunity not configured, expected : rocommunity public default ;\n"
		echo -e "${RED} Expected rocommunity NOT CONFIGURED : check KO${NC}\n"
	# Expected rocommunity configured
	else
		echo -e "${GREEN}Expected rocommunity CONFIGURED : check OK${NC}\n"
	fi
fi


# Check if trapsink/trap2sink exist but different than expected (success if return code = 1)
grep -E "^[[:space:]]*trap[2]?sink" /etc/snmp/snmpd.conf \
	|grep -E -q -v -e "^[[:space:]]*trap[2]?sink[[:space:]]*${NAME_MASTER_MONITORING}[[:space:]]*public[[:space:]]*\$"

# Return Code
RC=$?

# Unexpected trapsink/trap2sink found
if [ $RC -eq 0 ]
then
	SNMP_CONFIG_CHECK_FAILED="${SNMP_CONFIG_CHECK_FAILED} Unexpected trapsink/trap2sink found, expected : trap2sink ${NAME_MASTER_MONITORING} public ;"
	echo -e "${RED}UNEXPECTED trapsink/trap2sink found : check KO${NC}\n"
# No unexpected trapsink/trap2sink
else
	# Check if expected trapsink/trap2sink configured (success if return code = 0)
	grep -E -q "^[[:space:]]*trap2sink[[:space:]]*${NAME_MASTER_MONITORING}[[:space:]]*public[[:space:]]*\$" /etc/snmp/snmpd.conf
	
	# Return Code
	RC=$?

	# Expected trapsink/trap2sink NOT configured
	if [ $RC -ne 0 ]
	then
		SNMP_CONFIG_CHECK_FAILED="${SNMP_CONFIG_CHECK_FAILED} Expected trapsink/trap2sink not configured, expected : trap2sink ${NAME_MASTER_MONITORING} public ;"
		echo -e "${RED} Expected trapsink/trap2sink NOT CONFIGURED : check KO${NC}\n"
	# Expected trapsink/trap2sink configured
	else
		echo -e "${GREEN}Expected trapsink/trap2sink CONFIGURED : check OK${NC}\n"
	fi
fi