diagnostics: firewall_turris, firewall_uci and iptables merged into firewall module

diagnostics/modules/firewall.module

+#!modules/module.sh
+
+help="
+print uci firewall settings and the currnet content of iptables
+"
+
+run () {
+	uci show firewall
+	uci show firewall-turris
+	echo
+
+	# get md5sum of the firewall scripts and rules
+	md5sum /usr/share/firewall/*
+	echo
+
+	# list user defined scripts
+	ls -al /etc/firewall.user
+	ls -al /etc/firewall.d/*
+	echo
+
+	iptables-save
+}

diagnostics/modules/firewall_turris.module

-#!modules/module.sh
-
-help="
-list turris firewall settings
-"
-
-run () {
-	cat /etc/config/firewall-turris
-	echo
-	md5sum /usr/share/firewall/*
-}

diagnostics/modules/firewall_uci.module

-#!modules/module.sh
-
-help="
-get uci firewall config
-"
-
-run () {
-	cat /etc/config/firewall
-}

diagnostics/modules/iptables.module

-#!modules/module.sh
-
-help="
-list current iptables
-"
-
-run () {
-	iptables-save
-}