From eec9fcf910b738a93818c2ead715eab0edf737aa Mon Sep 17 00:00:00 2001
From: root <root@gentoo-funk.wirebrass.fr>
Date: Sat, 30 Mar 2019 16:14:57 +0100
Subject: [PATCH] Create recipe_check_snmp_config.sh for SNMPD

---
 recipes/recipe_check_snmp_config.sh | 110 ++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 recipes/recipe_check_snmp_config.sh

diff --git a/recipes/recipe_check_snmp_config.sh b/recipes/recipe_check_snmp_config.sh
new file mode 100644
index 0000000..061e4c6
--- /dev/null
+++ b/recipes/recipe_check_snmp_config.sh
@@ -0,0 +1,110 @@
+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
+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